de Sitter vacua in string theory

2003/01/29 by Shamit Kachru, Renata Kallosh, Рената Каллош +2 · 2 voices · 3,370 citations
Mathematics · Physics and Astronomy · #Black Holes and Theoretical Physics #Brane #Cosmology and Gravitation Theories #De Sitter space #De Sitter universe #F-theory #Geometry #Instanton #Mathematical physics #Mathematics #Metastability #Moduli space #Particle physics theoretical and experimental studies #Physics #Quantum mechanics #String (physics) #String theory #Superpotential #Supersymmetry #Theoretical physics #Universe #astro-ph #gr-qc #hep-ph #hep-th

paper · pdf · doi:10.1103/physrevd.68.046005

published in Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fields 68(4) (American Physical Society) · 12 pages, 2 figs, added comments on the thin wall approximation to tunneling

arxiv created 2003/02/10 · openalex publication_date 2003/08/07 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/06

Abstract

We outline the construction of metastable de Sitter vacua of type IIB string theory. Our starting point is highly warped IIB compactifications with nontrivial NS and RR three-form fluxes. By incorporating known corrections to the superpotential from Euclidean D-brane instantons or gaugino condensation, one can make models with all moduli fixed, yielding a supersymmetric AdS vacuum. Inclusion of a small number of D3-branes in the resulting warped geometry allows one to uplift the AdS minimum and make it a metastable de Sitter ground state. The lifetime of our metastable de Sitter vacua is much greater than the cosmological time scale of 10¹⁰yr. We also prove, under certain conditions, that the lifetime of dS space in string theory will always be shorter than the recurrence time.

Citations

• Complex structures on nilpotent Lie algebras
• Observational Evidence from Supernovae for an Accelerating Universe and a Cosmological Constant
• The dS/CFT correspondence
• Disturbing Implications of a Cosmological Constant
• On the Cohomology of Compact Homogeneous Spaces of Nilpotent Lie Groups

Cited by

• Warped Numerical Calabi-Yau Metrics
• Global Asymptotics, the Swampland Conjectures, and Preheating of String Moduli
• Robust preference for Dynamical Dark Energy in DESI BAO and SN measurements
• Cosmological aspects of gauge mediated supersymmetry breakdown
• Stabilizing the Runaway Quiver in Supergravity
• On Moduli Stabilization Scheme in Type IIB Flux Compactifications
• Orbifold Phases of Heterotic Flux Vacua
• Hitchhiker's Guide to the Swampland: The Cosmologist's Handbook to the String‐Theoretical Swampland Programme
• Quintessence: A Review
• On the Limits of Effective Quantum Field Theory: Eternal Inflation, Landscapes, and Other Mythical Beasts
• Towards an explicit model of large field inflation
• Warping and Supersymmetry Breaking
• Landscapes at Colliders
• Higher Spin de Sitter Hilbert Space
• Taxonomy of type II orientifold flux vacua in 3D
• Inflationary Particle Production and the Swampland
• Dual Gauged Supergravities
• The Riches of the Elementary Fluxbrane Solution
• Primordial Black Holes from Inflation with a Spectator Field
• Primordial Fluctuations in String Cosmology
• Fibre Inflation Meets Quintessence: Implications of Perturbative Stabilisation
• Constraining strongly-warped extra dimensions with rotating black holes
• Dynamical system analysis of the cosmological phases in Palatini k-essence gravity
• SUSY Model Building
• Quantum Field Theory in de Sitter Universe: Ambient Space Formalism
• Streamlined Supergravity
• Holographic Constraints on the String Landscape
• Observations on the Space of Four Dimensional String and M theory Vacua
• Dark Matter from Holography
• An effective theory for higher-dimensional black holes and applications to metastable antibranes
• Localised anti-branes in non-compact throats at zero and finite T
• Birth of the Universe from the Multiverse
• A Cyclic Cosmological Model in the Landscape Scenario
• Dynamics of dark energy
• The String Landscape, the Swampland, and the Missing Corner
• Aspects of moduli stabilization in type IIB string theory
• Gravitational Waves from Multiple Cosmic Superstrings and the Overshoot Problem
• Primordial black holes from the perturbations in the inflaton potential in peak theory
• Coleman de Luccia geometry reconsidered and ADS/CFT
• Gravity and strings
• Observational constraints on patch inflation in noncommutative spacetime
• Resolving the Structure of Black Holes: Philosophizing with a Hammer
• The dangerous irrelevance of string theory
• Three-Dimensional Gravity Revisited
• The Quest for B Modes from Inflationary Gravitational Waves
• D3/D7 Inflation in a Type-0B String Background
• Proof of absence of de Sitter vacua in classical type II supergravity
• The Arrow Of Time In The Landscape
• Energy Density Bounds in Cubic Quasi-Topological Cosmology
• Eternal Inflation, Global Time Cutoff Measures, and a Probability Paradox
• Lectures on Naturalness, String Landscape and Multiverse
• On the Field Excursion Bound
• Strings in Ramond-Ramond Backgrounds from the Neveu-Schwarz-Ramond Formalism
• O(16)×O(16) heterotic theory on AdS₃× S³× T⁴
• de Sitter no-go's for Riemann-flat manifolds and a link to semidefinite optimisation
• DE SITTER MUSINGS
• The Standard Model from String Theory: What Have We Learned?
• Theoretical and observational aspects of cosmological inflation
• More Effective RS Field Theory
• Open string tachyon is the stringy inflaton
• Dynamics of Cosmic Superstrings and the Overshoot Problem
• The Calabi-Yau Landscape: from Geometry, to Physics, to Machine-Learning
• A note on tachyon dynamics
• Spontaneous Inflation and the Origin of the Arrow of Time
• Causality, Analyticity and an IR Obstruction to UV Completion
• Resolving anti-brane singularities through time-dependence
• Cosmology as geodesic motion
• AdS and dS Entropy from String Junctions
• Cosmological Trans-Planckian Conjectures are not Effective
• Random Polynomials and the Friendly Landscape
• Cosmological Constant in a Quantum Gravity Theory for a Piecewise-linear Spacetime
• Toward an Effective Theory of the Volume Modulus
• Sampling String Vacua Using Generative Models
• Sigma model renormalisation group flows, singularities and some remarks on cosmology
• A Universe Without Weak Interactions
• Inflation on a Pair of D3-brane and D3bar-brane in Klebanov-Strassler Background
• Revisiting constraints on uplifts to de Sitter vacua
• A Renormalization Group Approach to the Cosmological Constant Problem
• Model Building with F-Theory
• Extending the Dynamical Systems Toolkit: Coupled Fields in Multiscalar Dark Energy
• Patch dualities and remarks on nonstandard cosmologies
• Throat destabilization (for profit and for fun)
• Introduction to Gauge/Gravity Duality
• Phenomenological aspects of supergravity theories in de Sitter vacua
• Cosmological constraints on string scale and coupling arising from tachyonic instability
• From black holes to flux throats: polarization can resolve the singularity
• De Sitter Vacua from a D-term Generated Racetrack Uplift
• D-brane realizations of runaway behavior and moduli stabilization
• A worldsheet perspective on string inflation
• TASI Lectures on the Emergence of the Bulk in AdS/CFT
• The Tension Spectrum of Cosmic Superstrings in a Warped Deformed Conifold
• Topics on String Phenomenology
• A class of Calabi-Yau threefolds as manifolds of SU(2) structure
• One more observational consequence of many-worlds quantum theory
• The Degree of Fine-Tuning in our Universe -- and Others
• Localised Anti-Branes in Flux Backgrounds
• Compactification with Flux and Yukawa Hierarchies
• Brane inflation and reheating
• AdS₄ compactifications of AdS₇ solutions in type II supergravity
• A Cosmological Constant That is Too Small
• Is inflation from unwinding fluxes IIB?
• Lectures on the Swampland Program in String Compactifications
• Les Houches Lectures on Constructing String Vacua
• Universality in the Axiverse
• The Cosmological Constant Problem, Dark Energy, and the Landscape of String Theory
• On supersymmetric Anti-de-Sitter, de-Sitter and Minkowski flux backgrounds
• Moduli stabilization in (string) model building: gauge fluxes and loops
• Trapped Brane Features in DBI Inflation
• Gauged Supergravities and the Physics of Extra Dimensions
• Compactifications of String/M-Theory and the Swampland: A Study of the AdS₄ Mass Spectrum of Eleven-Dimensional Supergravity on the Squashed Seven-Sphere
• Phenomenology from the Landscape of String Vacua
• Non-SUSY fractional branes
• Inverse Seesaw Model in Non-holomorphic Modular A₄ Flavor Symmetry
• Penumbral Inflation from Calabi-Yau Boundaries
• Moduli Self-Fixing
• Warped G2 throats from deformed conifolds in IIA supergravity
• Gravitation and tunnelling: Subtleties of the thin-wall approximation and rapid decays
• Brane/antibrane dynamics and KKLT stability
• Cosmological constraints from UV/IR mixing
• No-Scale Multiverse Blueprints at the LHC
• Gravitational waves from a dilaton-induced, first-order QCD phase transition
• Barrow holographic dark energy interacting model in the presence of radiation and matter
• Coexisting Flux String Vacua from Numerical Kähler Moduli Stabilisation
• Fractal-Flows and Time's Arrow
• Early Universe cosmology and supergravity
• The Observer Class Hypothesis
• Assisted Fibre Inflation in Perturbative LVS
• Solving inverse problems of Type IIB flux vacua with conditional generative models
• Hamilton-Jacobi formalism for Generalized Chaplygin Gas models
• Higher co-dimension de Sitter branes
• Perturbative Kähler Moduli Inflation
• Riding gravity away from doomsday
• Simple quintessence models in light of DESI-BAO observations
• General soft terms from Supergravity including D-terms
• Cosmographic analysis of sign-switching dark energy
• F-term uplifted racetrack inflation
• dS₂ Supergravity
• Naturalness Under Stress
• Cosmological Perturbations via Quantum Corrections in M-theory
• A Novel Construction of de Sitter Vacua in Heterotic String Theory
• Warming up the Fibres
• Chiral 4d String Vacua with D-branes and Moduli Stabilization
• Perturbative decay of anti-branes in flux backgrounds due to space time instabilities
• Aspects of moduli stabilisation in string and M-theory
• On the quantitative calculation of the cosmological constant of the quantum vacuum
• A New Perspective to Cosmic Evolution and Vacuum Selection on a Superspace
• Smeared antibranes polarise in AdS
• Warped Strings: Self-dual Flux and Contemporary Compactifications
• The Cosmological Constant and the String Landscape
• Singularities in and Stability of Ooguri-Vafa-Verlinde Cosmologies
• Bulk/boundary Modular Quintessence and DESI
• Hidden Sectors in String Theory: Kinetic Mixings, Fifth Forces and Quintessence
• Backtracking AdS flux vacua
• De Sitter Space and the Swampland
• TASI Lectures on Cosmic Acceleration
• Mirage resolution of cosmological singularities
• Cosmological dynamics of multifield dark energy
• The weak anthropic principle and the landscape of string theory
• Question for SU(5) x SU(5) string unification
• Cosmic Strings as Dynamical Dark Energy: Novel Constraints
• Remarks on brane and antibrane dynamics
• Statistical Distribution of the Vacuum Energy Density in Racetrack Kähler Uplift Models in String Theory
• Warped G₂-throats in IIA and uplift dSillusions
• AdS and stabilized extra dimensions in multi-dimensional gravitational models with nonlinear scalar curvature terms R −1 and R 4
• The Census Taker's Hat
• Brane Curvature Corrections to the N=1 Type II/F-theory Effective Action
• Dark Energy in String Theory
• Anti-brane singularities as red herrings
• Escher in the Sky
• Flux vacua as supersymmetric attractors
• Yoga Dark Energy: Natural Relaxation and Other Dark Implications of a Supersymmetric Gravity Sector
• Calabi-Yau compactification of type II string theories
• Vacuum Tunneling from Conifold Transitions in IIB
• Axionic Inflation from Large Volume Flux Compactifications
• Coleman-de Luccia reconsidered: a subtlety of gravity and the thin wall approximation
• Challenges for the Nelson-Barr Mechanism
• Comments on the Transplanckian Censorship Conjecture
• Fibre Inflation Beyond BHP: Constraints and a BHP-Free Regime
• Approximate reconstruction of inflationary potential with ACT observations
• Accelerated Expansion from Negative Λ
• Localized Gravity, de Sitter, and the Horizon Criterion
• A Note on the Quantum Creation of Universes
• Gauge-String Dualities and Some Applications
• TeV-scale gravity in Horava-Witten theory on a compact complex hyperbolic threefold
• Les Houches Lectures on Strings and Arithmetic
• Regulating Eternal Inflation
• Constraints on brane inflation and cosmic strings
• Coupling quintessence to inflation in supergravity
• Thermodynamics via creation from nothing: Limiting the cosmological constant landscape
• Fractional brane state in the early Universe
• Vacuum Sampling in the Landscape during Inflation
• Holographic tachyon model
• Toroidal Orbifolds: Resolutions, Orientifolds and Applications in String Phenomenology
• A Delicate Universe: Compactification Obstacles to D-brane Inflation
• Flux-induced SUSY-breaking soft terms on D7–D3 brane systems
• One loop predictions of the finely tuned supersymmetric standard model
• String cosmology: a review
• Implications of canonical gauge coupling unification in high-scale supersymmetry breaking
• Numerical experiments withpF- andqD-strings: the formation of (p,q) bound states
• Modular thermal inflation without slow-roll approximation
• Non-perturbative and flux superpotentials for type I strings on the Z3 orbifold
• IR inflation from multiple branes
• Graceful exit from a stringy landscape via MSSM inflation
• Consistent de Sitter string vacua from Kähler stabilization and D‐term uplifting
• Wheeler-DeWitt equation for brane gravity
• Singularities in geodesic surface congruence
• D-Sitter Space: Causal Structure, Thermodynamics, and Entropy
• Lectures on nongeometric flux compactifications
• String axiverse
• Large hierarchies from attractor vacua
• Moduli evolution in the presence of flux compactifications
• The type IIB string axiverse and its low-energy phenomenology
• A note on the magnitude of the flux superpotential
• Flux discharge cascades in various dimensions
• Superinflation in loop quantum cosmology
• Axion models with high-scale supersymmetry breaking
• Decoherence delays false vacuum decay
• Probability of Vacuum Stability in Type IIB Multi-Kähler Moduli Models
• False vacuum bubble nucleation due to a nonminimally coupled scalar field
• Radiative constraints on brane quintessence
• D-terms and D-strings in open string models
• Some remarks on embedding inflation in the AdS/CFT correspondence
• Stable and metastable cosmic strings in heterotic M-theory
• Proton stability in grand unified theories, in strings and in branes
• Anomaly mediated supersymmetry breaking
• Crosscaps in Gepner Models and the Moduli space of T2 Orientifolds
• Moduli evolution in the presence of matter fields and flux compactification
• SUPERSYMMETRY AT AND BEYOND THE LHC
• Holographic framework for eternal inflation
• Unravelling strings at the CERN LHC
• Hunting long-lived gluinos at the Pierre Auger Observatory
• Non-Gaussianity of Racetrack Inflation Models
• Heterotic string compactified on half-flat manifolds
• de Sitter vacua from matter superpotentials
• Large Hierarchies from ApproximateRSymmetries
• The information paradox and the locality bound
• Stability of D1-Strings Inside a D3-Brane
• From Swampland to Phenomenology and Back
• D-term uplifted racetrack inflation
• The ubiquitous throat
• String phenomenology and the cosmological constant
• DBI N-flation
• Stable de Sitter vacua in four-dimensional supergravity originating from five dimensions
• Moduli stabilization in 5D gauged supergravity with universal hypermultiplet and boundary superpotentials
• Non-Gaussianity from tachyonic preheating in hybrid inflation
• Brane/flux annihilation transitions and nonperturbative moduli stabilization
• Emergently thermalized islands in the landscape
• Supersymmetric codimension-two branes and U(1)Rmediation in 6D gauged supergravity
• Multiple inflation, cosmic string networks and the string landscape
• Fivebrane instantons and Calabi-Yau fourfolds with flux
• F-term uplifting via consistent D-terms
• Islands in the landscape
• Inflation in uplifted supergravities
• The price of WMAP inflation in supergravity
• Runaway in the landscape
• Possible explanation to a low CMB quadrupole
• What is needed of a tachyon if it is to be the dark energy?
• M-theory inflation from multi M5-brane dynamics
• Standardlike models as type IIB flux vacua
• Diagnosis of supersymmetry breaking mediation schemes by mass reconstruction at the LHC
• Spontaneous supersymmetry breaking with anomalousU(1)symmetry in metastable vacua and moduli stabilization
• Enhanced Brane Tunneling and Instanton Wrinkles
• Heavy particles from inflation
• Clustering of Superstring Loops
• Fluxes, moduli fixing and MSSM-like vacua in a simple IIA orientifold
• Direct/indirect detection signatures of nonthermally produced dark matter
• Worldsheet instantons, torsion curves and non-perturbative superpotentials
• Large D-terms, hierarchical soft spectra and moduli stabilisation
• R4 corrections to heterotic M-theory
• New agegraphic dark energy in f(R) gravity
• Dynamics of moduli and gaugino condensates in an expanding universe
• Some no-go theorems for string duals of non-relativistic Lifshitz-like theories
• Cosmic acceleration from asymmetric branes
• α-states in de Sitter space
• Cosmological rescaling through warped space
• Note on the radion effective potential in the presence of branes
• Kaluza-Klein bubble like structure and celestial sphere in the inflationary universe
• A note on the moduli-induced gravitino problem
• Inflation from wrapped branes
• Watching worlds collide: effects on the CMB from cosmological bubble collisions
• THE WARPING OF EXTRA SPACES ACCELERATES THE EXPANSION OF THE UNIVERSE
• Evidence for a bound on the lifetime of de Sitter space
• Flux vacua attractors and generalized compactifications
• Duality cascade in brane inflation
• Supersymmetric Higgs and radiative electroweak breaking
• The Boundedness of Euclidean Gravity and the Wavefunction of the Universe
• Multi-Field Inflation from String Theory
• Moduli stabilization in meta-stable heterotic supergravity vacua
• Moduli-Induced Gravitino Problem
• Of pNGB quiScript Ntessence
• Landscape of supersymmetry breaking vacua in geometrically realized gauge theories
• Condensation de tachyon dans le système brane-antibrane
• Naturally light hidden photons in LARGE volume string compactifications
• Spinflation from geometric tachyon
• Axion inflation in type II string theory
• A bulk inflaton from large-volume extra dimensions
• Census taking in the hat: FRW/CFT duality
• Generalized Friedmann equations for a finite thick brane
• Dynamics ofD3-D7 brane inflation in throats
• D-branes on AdS flux compactifications
• Power of black hole physics: seeing through the vacuum landscape
• “Finite” non-Gaussianities and tensor–scalar ratio in large volume Swiss-cheese compactifications
• Large volume axionic Swiss cheese inflation
• Predictions of the causal entropic principle for environmental conditions of the universe
• Deflected Mirage Mediation: A Phenomenological Framework for Generalized Supersymmetry Breaking
• “Black universe” epoch in string cosmology
• Towards a quantum theory of de Sitter space
• On the new string theory inspired mechanism of generation of cosmological perturbations
• Is brane inflation eternal?
• A note on non-commutative brane inflation
• Stringy instantons and quiver gauge theories
• Gaugino condensates andD-terms from D7-branes
• Sinks in the landscape, Boltzmann brains and the cosmological constant problem
• Gauge/gravity duality and meta-stable dynamical supersymmetry breaking
• Flux stabilization in 6 dimensions: D-terms and loop corrections
• 4D superfield reduction of 5D orbifold SUGRA and heterotic M-theory
• Dynamical Higgs potentials with a landscape
• Branes, U-folds and hyperelliptic fibrations
• Living dangerously with low-energy supersymmetry
• Discovery of supersymmetry with degenerate mass spectrum
• Elliptic inflation: generating the curvature perturbation without slow-roll
• GRAND UNIFICATION AS A BRIDGE BETWEEN STRING THEORY AND PHENOMENOLOGY
• Low energy supersymmetry from the landscape
• Landscape of string theory and the wave function of the universe
• Investigation of the selection of original universe proposal
• Generating the Curvature Perturbation at the End of Inflation in String Theory
• On the four-dimensional effective theories in brane-worlds
• Light moduli in almost no-scale models
• Transitions between de Sitter minima
• IIA moduli stabilization with badly broken supersymmetry
• QUANTUM GEOMETRY AND ITS IMPLICATIONS FOR BLACK HOLES
• O'KKLT at finite temperature
• LHC string phenomenology
• Cosmological backgrounds of superstring theory and solvable algebras: oxidation and branes
• Relaxed fine-tuning in models with nonuniversal gaugino masses
• Heterotic moduli stabilization with fractional Chern-Simons invariants
• 1+1Dimensional Compactifications of String Theory
• R-symmetry breaking and O’Raifeartaigh model with global symmetries at finite temperature
• Lectures on cosmic inflation and its potential stringy realizations
• Family unification via quasi-Nambu–Goldstone fermions in string theory
• Phenomenology of GUT-less supersymmetry breaking
• Predictions from star formation in the multiverse
• Resonant Dirac leptogenesis on throats
• Moduli stabilization in type IIB orientifolds (II)
• EVOLUTION OF THE D3-BRANE FOR DYNAMICAL EMBEDDINGS
• Low-scale inflation and supersymmetry breaking in racetrack models
• Compactification driven hilltop inflation in Einstein-Yang-Mills theory
• Reheating the D-brane universe via instant preheating
• ON D3-BRANE DYNAMICS AT STRONG WARPING
• Metastable supersymmetry breaking and supergravity at finite temperature
• Anthropic Reasoning
• Collisions of cosmic F- and D-strings
• R symmetries in the landscape
• Enhanced symmetries in multiparameter flux vacua
• Surveying standard model flux vacua onT6/Bbb Z2× Bbb Z2
• Uplifting the Iwasawa
• PhD Thesis: String theory in the early universe
• Inter-brane interactions in compact spaces and brane inflation
• Holographic de Sitter universe
• Phenomenology of mixed modulus-anomaly mediation in fluxed string compactifications and brane models
• Bottom-up approach to moduli dynamics in heavy gravitino scenario: Superpotential, soft terms, and sparticle mass spectrum
• A new mechanism of Kähler moduli stabilization in type IIB theory
• Warped flux compactification and brane gravity
• An open string landscape
• Braneworld flux inflation
• Fluxbranes: moduli stabilisation and inflation
• The Boundaries of KKLT
• Brief overview of Candidate de Sitter Vacua
• Effect of Extra Dimensions on Gravitational Waves from Cosmic Strings
• Observational signatures and non-Gaussianities of general single-field inflation
• Brane inflation after Wilkinson Microwave Anisotropy Probe three year results
• Minimal string-scale unification of gauge couplings
• Hadronic production and decays of charginos and neutralinos in split supersymmetry
• The powers of monodromy
• THE N-TACHYON ASSISTED INFLATION
• Domain wall flow equations and SU(3)×SU(3) structure compactifications
• What does inflation really predict?
• Towards inflation in string theory
• Moduli stabilization and the pattern of sparticle spectra
• Racetrack Inflation
• Inflationary paradigm after Planck 2013
• Constraints on standard and non-standard early universe models from CMBB-mode polarization
• Observing brane inflation
• The statistics of supersymmetric D-brane models
• Hořava–Witten stability: eppur si muove
• \rm D3 and dS
• Towards inflation in string theory
• Uplifting anti-D6-brane
• Is there a resting frame in the universe? A proposed experimental test based on a precise measurement of particle mass
• Realistic Yukawa structures from orientifold compactifications
• Cosmological constant in a model with superstring-inspired E 6 unification and shadow θ-particles
• Heating in brane inflation and hidden dark matter
• On compatibility of string effective action with an accelerating universe
• Reach of the high-energy LHC for gluinos and top squarks in SUSY models with light Higgsinos
• String Theory for Metaphysicians
• Trapped quintessential inflation in the context of flux compactifications
• Superconformal symmetry, NMSSM, and inflation
• Cosmic superstrings in large volume compactifications: PTAs, LISA and time-varying tension
• Distribution of flux vacua around singular points in Calabi-Yau moduli space
• The Weak Gravity Conjecture in Asymptotically Safe Quantum Gravity
• On cosmological constants from α′-corrections
• THE \mathcal F-LANDSCAPE: DYNAMICALLY DETERMINING THE MULTIVERSE
• On I -even singlet glueballs in the Klebanov-Strassler theory
• On the origin of gauge symmetries and fundamental constants
• D branes in background fluxes and Nielsen-Olesen instabilities
• Dynamical cobordisms in general relativity and string theory
• Susskind’s challenge to the Hartle–Hawking no-boundary proposal and possible resolutions
• Gauge threshold corrections in warped geometry
• Microscopic origin of volume modulus inflation
• Landscape, the Scale of SUSY Breaking, and Inflation
• Multithroat brane inflation
• Stringy corrections to Kahler potentials, SUSY breaking, and the cosmological constant problem
• Compactifications of heterotic strings on non-Kähler complex manifolds II
• Flux compactification
• Scaling of multitension cosmic superstring networks
• Basic results in vacuum statistics
• On the Explicit Construction and Statistics of Calabi-Yau Flux Vacua
• Lectures on string theory and cosmology
• On tadpoles and vacuum redefinitions in String Theory
• Validity of a factorizable metric ansatz in string cosmology
• Gravity waves from cosmic bubble collisions
• Radiation of supersymmetric particles from Aharonov-Bohm R-string
• Nonsupersymmetric attractors
• Kalb-Ramond field interactions in a braneworld scenario
• Non-Gaussian and nonscale-invariant perturbations from tachyonic preheating in hybrid inflation
• Making predictions in the multiverse
• Seeking string theory in the cosmos
• Negative vacuum energy densities and the causal diamond measure
• Relaxion monodromy and the Weak Gravity Conjecture
• DARK ENERGY DENSITY IN MODELS WITH SPLIT SUPERSYMMETRY AND DEGENERATE VACUA
• Moduli instability in warped compactifications of the type-IIB supergravity
• Instabilities of microstate geometries with antibranes
• Inflation after false vacuum decay: Observational prospects after Planck
• D-brane potentials in the warped resolved conifold and natural inflation
• Jumping through loops: on soft terms from large volume compactifications
• The spectrum of goldstini and modulini
• Radion cosmology in theories with universal extra dimensions
• Shift symmetry and inflation in supergravity
• On supersymmetry breaking in string theory from gauge theory in a throat
• Gauge mediated supersymmetry breaking and moduli stabilization
• Chiral 4d string vacua with D-branes and NSNS and RR fluxes
• The fate of four dimensions
• Closed string tachyon condensation and worldsheet inflation
• Gauged Supergravities
• Detection of low tension cosmic superstrings
• A stronger case for superunification post Higgs boson discovery
• The effective action of D7-branes in N=1 Calabi–Yau orientifolds
• SQCD inflation & SUSY breaking
• Environmentally selected WIMP dark matter with high-scale supersymmetry breaking
• Relaxing the cosmological moduli problem by low-scale inflation
• Cosmological observables in multi-field inflation with a non-flat field space
• Cosmology with twisted tori
• Supersymmetric superheavy dark matter
• Gravity on a little warped space
• The trouble with de Sitter space
• TASI Lectures: Particle Physics from Perturbative and Non-perturbative Effects in D-Braneworlds
• Wrapped brane gas as a candidate for dark matter
• A heterotic flux background and calibrated five-branes
• Toward de Sitter space from ten dimensions
• Supermassive gravitinos, dark matter, leptogenesis and flat direction baryogenesis
• Photon sphere and phase transition of d -dimensional ( d ≥ 5) charged Gauss–Bonnet AdS black holes
• A keV string axion from high scale supersymmetry
• Density fluctuations in one-field inflation
• Moduli stabilization with positive vacuum energy
• Dark Matter and the LHC
• Evolution of gravitationally unstable de Sitter compactifications
• Hilltop inflation
• Non-minimal M-flation
• Universal dS vacua in STU-models
• Complex Linear Multiplets and Local Supersymmetry Breaking
• Fluxed minimal supersymmetric standard model
• Some physical consequences of an exact vacua distribution in the Bousso-Polchinski Landscape
• SUSY’s Ladder: reframing sequestering at Large Volume
• A no-go theorem for accelerating cosmologies from M-theory compactifications
• Thermal inflation and baryogenesis in heavy gravitino scenario
• Random potentials and cosmological attractors
• Constrained superfields on metastable anti-D3-branes
• Observable chiral gravitational waves from inflation in string theory
• Warp factor and the gravitational wave spectrum
• Kaluza–Klein reduction on a maximally non-Riemannian space is moduli-free
• Chiral matter wavefunctions in warped compactifications
• A meandering inflaton
• Old Inflation in String Theory
• The cosmological constant in supergravity
• An orientifold with fluxes and branes via T-duality
• New contribution to dimension-five operators on proton decay in anomaly mediation scenario
• Constraints on modular inflation in supergravity and string theory
• D-term contributions to the mixed modulus–anomaly mediated supersymmetry breaking
• Hypermultiplet metric and D-instantons
• DWSB in heterotic flux compactifications
• Comparing brane inflation to WMAP
• An accelerating universe emergent from the landscape
• Unstoppable brane-flux decay of D6¯D6 branes
• Applied String Theory
• Holographic Probabilities in Eternal Inflation
• The scales of brane nucleation processes
• Loop Fayet-Iliopoulos terms in T2/Z2 models: Instability and moduli stabilization
• Gravitational Kaluza–Klein modes in warped superstring compactification
• The moduli problem at the perturbative level
• A systematic approach to Kähler moduli stabilisation
• Gravitino problem in inflation driven by inflaton-polonyi Kähler coupling
• Cosmological backgrounds of gravitational waves
• The backreaction of anti-D3 branes on the Klebanov-Strassler geometry
• Supernova bound on axionlike particles coupled with electrons
• Inflation from warped space
• Hierarchy from baryogenesis
• Strong moduli stabilization and phenomenology
• Instantons and infinite distances
• Scale separation from O-planes
• Non-minimally coupled canonical, phantom and quintom models of holographic dark energy
• Is there a Peccei–Quinn phase transition?
• Axion inflation in F-theory
• Fate of the false monopoles: Induced vacuum decay
• Geometric transitions on non‐Kähler manifolds
• Anthropic Estimates for Many Parameters of Physics and Astronomy
• QCD axion as a bridge between string theory and flavor physics
• Scalar and fermionic vacuum currents in de Sitter spacetime with compact dimensions
• A new method for finding vacua in string phenomenology
• Conceptual Aspects of Gauge/Gravity Duality
• Supergravity chaotic inflation and moduli stabilization
• The quantum swampland
• The Nelson-Seiberg Theorem Generalized with Nonpolynomial Superpotentials
• Warped de Sitter compactifications in the scalar–tensor theory
• A Geometric Solution to the Coincidence Problem, and the Size of the Landscape as the Origin of Hierarchy
• Dynamical brane with angles: Collision of the universes
• Inflation after false vacuum decay: new evidence from BICEP2
• Mass-deformed M2 branes in Stenzel space
• On SUSY-breaking moduli spaces of AdS7 vacua and 6D SCFTs
• Where in the string landscape is quintessence?
• Heterotic flux compactifications and their moduli
• Entropic principle and asymptotic freedom
• The Super-Stückelberg procedure and dS in pure supergravity
• Interacting New Agegraphic Phantom Model of Dark Energy in Non-flat Universe
• Scalar field models driven by Dirac-Born-Infeld dynamics and their relatives
• Brane-world Cosmology
• The robustness of n_\mathrm s \lesssim 0.95 in racetrack inflation
• Prospects of inflation with perturbed throat geometry
• Non-Gaussianities of single field inflation with nonminimal coupling
• Dynamics of M-theory vacua
• Conditions for (no) eternal inflation
• Blueprints of the no-scale multiverse at the LHC
• Vacuum structure and the arrow of time
• Warped generalized geometry compactifications, effective theories and non‐perturbative effects
• Plane symmetric thin-shell wormholes: Solutions and stability
• The Tension between 10D Supergravity and dS Uplifts
• Uplifting Runaways
• Revisiting oscillon formation in the Kachru-Kallosh-Linde-Trivedi scenario
• Cosmological attractors and initial conditions for inflation
• On the cosmology of type IIA compactifications on SU(3)-structure manifolds
• Universal upper bound on the inflationary energy scale from the trans-Planckian censorship conjecture
• Classical de Sitter Solutions of 10-Dimensional Supergravity
• Birth of the universe from the landscape of string theory
• Constructing de Sitter vacua in no-scale string models without uplifting
• Neutrino masses, Baryon asymmetry, dark matter and the moduli problem — A complete framework
• Four Kähler moduli stabilisation in type IIB orientifolds with K3-fibred Calabi-Yau threefold compactification
• Gauge Field Fluxes and Bianchi Identities in Extended Field Theories
• De Sitter from T-branes
• Note on M2-branes in opposite charge
• Decoupling in an expanding universe: backreaction barely constrains short distance effects in the cosmic microwave background
• De Sitter uplift with Dynamical Susy Breaking
• Monodromy Charge in D7-brane Inflation
• Sparticle spectrum of large volume compactification
• The minimal GUT with inflaton and dark matter unification
• Eternity and the cosmological constant
• Two-field high-scale inflation in a sub-Planckian region of field space
• D3/D7 branes at singularities: constraints from global embedding and moduli stabilisation
• Cosmology from random multifield potentials
• Asymptotic states of the bounce geometry
• A quintessentially geometric model
• Bounds on scalar masses in theories of moduli stabilization
• Boundary definition of a multiverse measure
• Primordial non-Gaussianity in noncanonical warm inflation
• R-parity violation in split supersymmetry
• Type IIB solutions with interpolating supersymmetries
• Exact identification of the radion and its coupling to the observable sector
• Counting pockets with world lines in eternal inflation
• Warm brane inflation with an exponential potential: A consistent realization away from the swampland
• RAPID TUNNELING AND PERCOLATION IN THE LANDSCAPE
• MSSM GUT String Vacua, Split Supersymmetry and Fluxes
• Control Issues of KKLT
• Euclidean Wormholes, Baby Universes, and Their Impact on Particle Physics and Cosmology
• String hole gas in α'-corrected dilaton gravity
• Decoherence can relax cosmic acceleration: an example
• Electroweak naturalness and deflected mirage mediation
• Supertrace formulae for nonlinearly realized supersymmetry
• Balancing the vacuum energy in heterotic M-theory
• Vacuum Constraints for Realistic Strongly Coupled Heterotic M-Theories
• Constraints on Kähler moduli inflation from reheating
• Non-Gaussianity in KKLMMT model
• Rigid nongeometric orientifolds and the swampland
• On D3-brane potentials in compactifications with fluxes and wrapped D-branes
• Loop corrections to volume moduli and inflation in string theory
• Superheavy Dark Matter from the String Theory Axiverse
• Light Scalar Fields Foster Production of Primordial Black Holes
• Accelerating Universes from Compactification on a Warped Conifold
• Backreaction of Localised Sources in String Compactifications
• Moduli Bounds from Spin-2 Sum Rules
• Branches of the landscape
• Spectrum of the axion dark sector
• The diversity of universes created by pure gravity
• Small Neutrino Mass from Large Compactification Volumes
• Retrofitting O’Raifeartaigh models with dynamical scales
• Four-dimensional string compactifications with D-branes, orientifolds and fluxes
• Inflation without inflaton(s)
• Fighting the floating correlations: Expectations and complications in extracting statistical correlations from the string theory landscape
• Deforming, revolving and resolving—new paths in the string theory landscape
• Holographic Entanglement Entropy in the FLRW Universe
• Axion Mixing in the String Axiverse
• General analysis of LARGE Volume Scenarios with string loop moduli stabilisation
• Axions as quintessence in string theory
• Constraints on string networks with junctions
• Evading the Lyth bound in hybrid natural inflation
• Gauge field production in axion inflation: Consequences for monodromy, non-Gaussianity in the CMB, and gravitational waves at interferometers
• Reconstructing and deconstructing dark energy

Discussions

• Almost nothing in the swampland community is "beyond doubt". A very short summary of the situation from two years ago is still valid today. If there's a crisis happening, it's simply that the followin [stackexchange, 18 points]
• Although Connor Behan's answer is excellent, I would like to add a little comment on his answer. Old and new proposals for constructing de Sitter vacua are conjectural. The newer paper in fact attempt [stackexchange, 2 points]

Related

• Candidate de Sitter Vacua
• Brief overview of Candidate de Sitter Vacua
• Metastability in Anti de Sitter Space
• Evidence for a bound on the lifetime of de Sitter space
• de Sitter Space in Non-Critical String Theory