Addressing the so called quantum/classical “divide” in gravitational contexts, and its implications in cosmology

2025/02/08 by Rosa-Laura Lechuga-Solis, Rosa-Laura Lechuga, Daniel Sudarsky +2 · 1 voice
Physics and Astronomy · #Cosmology and Gravitation Theories #Quantum Mechanics and Applications #Relativity and Gravitational Theory

paper · pdf · doi:10.1007/s10714-025-03420-2

openalex publication_date 2025/05/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/23

Abstract

Abstract The manner in which one approaches the interface between gravitation and quantum theory is influenced by one’s posture regarding quantum mechanics and the issues that revolve about its interpretational problems. We discuss here the way in which these issues occur in the inflationary cosmology setting, the serious confusions that ensue, and one path that we have used to deal with the problem which perhaps surprisingly ends up, not just offering a conceptually clear physical picture, but also modifying some of the standard observational predictions of the inflationary approach.

Citations

• A new inflationary universe scenario: A possible solution of the horizon, flatness, homogeneity, isotropy and primordial monopole problems
• On Gravity's role in Quantum State Reduction
• Black Holes, Information Loss and the Measurement Problem
• Causal Dynamical Triangulations: Gateway to Nonperturbative Quantum Gravity
• Eternal inflation and collapse theories
• On the Status of Conservation Laws in Physics: Implications for\n Semiclassical Gravity
• Quantum to Classical Transition of Inflationary Perturbations - Continuous Spontaneous Localization as a Possible Mechanism -
• The slow roll condition and the amplitude of the primordial spectrum of cosmic fluctuations: Contrasts and similarities of standard account and the "collapse scheme"
• Shortcomings in the Understanding of Why Cosmological Perturbations Look Classical
• Why do cosmological perturbations look classical to us?
• Is quantum gravity necessary?
• On Spontaneous Wave Function Collapse and Quantum Field Theory
• A Relativistic Version of the Ghirardi-Rimini-Weber Model
• Dynamical Reduction Models
• Why Decoherence has not Solved the Measurement Problem: A Response to P. W. Anderson
• A General Argument Against the Universal Validity of the Superposition Principle
• Origin of classical structure from inflation
• Semiclassicality and Decoherence of Cosmological Perturbations
• On Evolution Laws Taking Pure States to Mixed States in Quantum Field Theory
• ETERNAL CHAOTIC INFLATION
• On the Problem of Hidden Variables in Quantum Mechanics
• The Beginning of the World from the Point of View of Quantum Theory

Discussions

• Rosa-Laura Lechuga-Solis & Daniel Sudarsky. Addressing the so called quantum/classical “divide” in gravitational contexts, and its implications in cosmology. #GenRelativGravit 57, 86 (2025). doi.org/1 [bsky, 0 points, 0 comments]