Rethinking quantum information in gravity and fields
2026/06/29 by Kanato Goto, Yuta Hamada, Kohtaro Kato +6 · 2 voices
Physics and Astronomy · #hep-th #quant-ph
paper · pdf
Abstract
This paper presents a curated selection of research questions at the intersection of quantum gravity and quantum information, chosen to highlight issues that we regard as particularly important for researchers in both fields. We organize the discussion into four main themes: the operational characterization of observables, the role of observers, quantum error correction, and the infinite-dimensionality of Hilbert spaces. We hope that addressing these questions will engage researchers across both communities and further strengthen the profound interplay between the two disciplines.
Citations
- Entanglement cost in non-local quantum computation
- Exploring the nature of gravity with quantum information methods
- Optimal learning of quantum channels in diamond distance
- Baby universe as logical qubits: information recovery in random encoding
- Explicit Connections Between Krylov and Nielsen Complexity
- The simple reason why classical gravity can entangle
- Classical Gravity Cannot Mediate Entanglement by Local Means
- Entanglement in von Neumann algebraic quantum information theory
- Lectures on entanglement, von Neumann algebras, and emergence of spacetime
- Emergent Mixed States for Baby Universes and Black Holes
- Classical theories of gravity produce entanglement
- Towards a holographic description of closed universes
- On tests for baby universes in AdS/CFT
- Nonperturbative Quantum Gravity in a Closed Lorentzian Universe
- Finite N Bulk Hilbert Space in ETH Matrix Model for double-scaled SYK
- Positivity in the Renormalization of Effective Field Theory
- On observers in holographic maps
- The Large-Scale Structure of Entanglement in Quantum Many-body Systems
- Looking at bulk points in general geometries
- Entanglement theory with limited computational resources
- Tripartite Haar random state has no bipartite entanglement
- The gravitational path integral from an observer's point of view
- Crossed products and quantum reference frames: on the observer-dependence of gravitational entropy
- Does connected wedge imply distillable entanglement?
- Multi-invariants and Bulk Replica Symmetry
- On Computational Complexity of Unitary and State Design Properties
- The complexity of entanglement embezzlement
- Undecidability in Physics: a Review
- Quantum-information methods for quantum gravity laboratory-based tests
- Pure state entanglement and von Neumann algebras
- Multipartite Embezzlement of Entanglement
- Critical Fermions are Universal Embezzlers
- A clock is just a way to tell the time: gravitational algebras in cosmological spacetimes
- Gravitational entropy is observer-dependent
- Towards complexity in de Sitter space from the double-scaled Sachdev-Ye-Kitaev model
- Cryptographic Censorship
- Entanglement cost for infinite-dimensional physical systems
- Embezzlement of entanglement, quantum fields, and the classification of von Neumann algebras
- Relativistic Quantum Fields Are Universal Entanglement Embezzlers
- Cosmology from random entanglement
- Algebras, Regions, and Observers
- The Complexity of Learning (Pseudo)random Dynamics of Black Holes and Other Chaotic Systems
- Holograms In Our World
- Quantum Pseudoentanglement
- Holography as a resource for non-local quantum computation
- Out-of-time-order correlators and quantum chaos
- The black hole interior from non-isometric codes and complexity
- An algebra of observables for de Sitter space
- Projective measurement of black holes
- Celestial Holography
- The Connes Embedding Problem: A guided tour
- The Swampland Conjectures: A bridge from Quantum Gravity to Particle Physics
- Lectures on the Swampland Program in String Compactifications
- A brief introduction to observational entropy
- Predicting many properties of a quantum system from very few measurements
- The Python's Lunch: geometric obstructions to decoding Hawking radiation
- Replica wormholes and the black hole interior
- Replica wormholes and the entropy of Hawking radiation
- Computational pseudorandomness, the wormhole growth paradox, and\n constraints on the AdS/CFT duality
- The Page curve of Hawking radiation from semiclassical geometry
- Entanglement Wedge Reconstruction and the Information Paradox
- Entanglement wedge reconstruction and the information paradox
- A canonical purification for the entanglement wedge cross-section
- The Swampland: Introduction and Review
- Quantum fields and local measurements
- Symmetries in quantum field theory and quantum gravity
- Entanglement entropy: Holography and renormalization group
- Space-time random tensor networks and holographic duality
- Construction and Performance of Quantum Burst Error Correction Codes for Correlated Errors
- Shadow Tomography of Quantum States
- The String Landscape, the Swampland, and the Missing Corner
- Efficient decoding for the Hayden-Preskill protocol
- Universal Hamiltonians for Exponentially Long Simulation
- Gravitationally Induced Entanglement between Two Massive Particles is Sufficient Evidence of Quantum Effects in Gravity
- Spin Entanglement Witness for Quantum Gravity
- Diving into traversable wormholes
- Witnessing quantumness of a system by observing only its classical\n features
- Why we need to quantise everything, including gravity
- The Complexity of Quantum States and Transformations: From Quantum Money to Black Holes
- From quantum chaos and eigenstate thermalization to statistical mechanics and thermodynamics
- Looking for a bulk point
- Quantum Extremal Surfaces: Holographic Entanglement Entropy beyond the Classical Regime
- Computational Complexity and Black Hole Horizons
- Computational complexity and black hole horizons
- Towards an S-matrix Description of Gravitational Collapse
- Black holes as mirrors: quantum information in random subsystems
- Black Holes and Large N Species Solution to the Hierarchy Problem
- Quantum Process Tomography: Resource Analysis of Different Strategies
- Then again, how often does the Unruh-DeWitt detector click if we switch it carefully?
- Ac-theorem for entanglement entropy
- Reference frames, superselection rules, and quantum information
- A Resource Framework for Quantum Shannon Theory
- The String Landscape and the Swampland
- On the quantum, classical and total amount of correlations in a quantum state
- Consequences and Limits of Nonlocal Strategies
- The private classical capacity and quantum capacity of a quantum channel
- Lecture Notes on Holographic Renormalization
- Universal entanglement transformations without communication
- Entanglement-assisted capacity of a quantum channel and the reverse Shannon theorem
- The asymptotic entanglement cost of preparing a quantum state
- Private Quantum Channels and the Cost of Randomizing Quantum Information
- Entanglement-Assisted Classical Capacity of Noisy Quantum Channels
- Spatially Correlated Qubit Errors and Burst-Correcting Quantum Codes
- D-Particle Dynamics and The Space-Time Uncertainty Relation
- Capacities of Quantum Erasure Channels
- The Capacity of Quantum Channel with General Signal States
- Concentrating Partial Entanglement by Local Operations
- Hilbert Space Representation of the Minimal Length Uncertainty Relation
- Impossible Measurements on Quantum Fields
- Can spacetime be probed below the string size?
- Evolution without evolution: Dynamics described by stationary observables
- Notes on black-hole evaporation
- Particle creation by black holes
Discussions
- My new paper, this time in hep-th! "Rethinking quantum information in gravity and fields" (Kanato Goto, Yuta Hamada, Kohtaro Kato, Takato Mori, Yoshifumi Nakata, Masataka Watanabe, Hayata Yamasaki, Ma [bsky, 2 points, 0 comments]
- 9人の別分野の著者による「現代の量子情報・場の理論・重力についての課題」 arxiv.org/abs/2606.30853 [bsky, 0 points, 0 comments]