Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Log inSign up
Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Blog
Job Board
Q3AS

© 2026 Aqora Quantum S.A.S.

TermsPrivacyLegal Notice

AAS

Testing Quantum Mechanics with Observations of Causally Disconnected Cosmological Events

Andrew S. Friedman, David I. Kaiser, Jason R. Gallicchio, Alan H. Guth

Published Jan 1, 2014• 0 citations
OpenAlex

Related papers

Cosmology and the causal interpretation of quantum mechanics

Christopher Dewdney, Peter Holland, Anastasios Kyprianidis +1 more

Physics Letters A•Mar 1, 1986•10 citations

The causal interpretation of quantum mechanics and the singularity problem in quantum cosmology

J. Acácio de Barros, Nelson Pinto-Neto

arXiv:gr-qc/9611028•Nuclear Physics B - Proceedings Supplements•Aug 1, 1997•6 citations

Expanding Horizons as Natural Quantum Erasers: Information Loss and Decoherence Across Cosmological Metric Expansion

Min Jinseong

The accelerating expansion of the universe, described by the Friedmann–Lemaˆıtre–Robertson– Walker (FLRW) metric, establishes a cosmological event horizon beyond which emitted pho-tons recede at effective velocities exceeding the speed of light (c). While general relativity treats this phenomenon as a geometric boundary resulting in causal disconnection, quantuminformation theory requires an account of the physical fate of quantum information crossing this horizon. In this paper, we propose a theoretical framework wherein cosmic metric ex-pansion acts as a Natural Quantum Eraser. We model the recession of quantum states across the cosmological horizon as a continuous, universe-scale decoherence channel that ir-reversibly erases path information (which-way information) for observers within the local causal patch. By synthesizing the FLRW spacetime metric with the Von Neumann entropy formulation and decoherence theory, we demonstrate that cosmic expansion enforces local-ized wave-function collapse without violating the No-Cloning Theorem or unitary quantum evolution. Furthermore, we show that the information ”erased” by the expanding horizondirectly contributes to the local thermodynamic entropy of the observable universe, offeringa novel quantum-informational foundation for the thermodynamic arrow of time.

•Aug 9, 2026•0 citations

The Impact of Cosmology on Quantum Mechanics

James B. Hartle

WORLD SCIENTIFIC eBooks•Dec 9, 2020•1 citation

GR–QM–CCC Interpenetrating Closure: Projection-Compressed Observability, Residual Coherence, and Realization Accessibility

Jimmy Chen

This work develops a GR–QM–CCC interpenetrating framework within Causal Cloud Cosmology (CCC). Rather than treating general relativity, quantum mechanics, and CCC as mutually exclusive systems, this paper interprets them as different observable layers of continuously accumulated realizable structure. General relativity is preserved as the observable-regime description of curvature geometry. Quantum mechanics is preserved as the predictive framework for observable quantum evolution, probabilities, interference, measurement outcomes, and statistical manifestation. CCC provides an interpretive layer for residual structural continuity, projection-compressed observability, and realization accessibility across observable manifestation regimes. Within this framework, entanglement, interference, decoherence, delayed-choice behavior, weak measurement, localization, temporal observability, cold atom localization, large-molecule interference, and classical emergence are interpreted as observable manifestation regimes under projection-compressed accessibility. Observable fragmentation does not necessarily imply structural fragmentation. Projection compression modifies observable accessibility rather than destroying accumulated realizable structure itself. Residual coherence may remain partially preserved even when local observable manifestation becomes strongly localized or decohered. The paper introduces and organizes key GR–QM–CCC concepts including observable quantum manifestation, residual coherence, realization accessibility, temporal observability, projection-compressed classicality, accessibility-stabilized localization, and unified observable closure. This work does not claim to replace general relativity or quantum mechanics. Instead, it proposes a conservative structural interpretation in which GR describes observable geometry, QM predicts observable manifestation, and CCC interprets residual continuity and realization accessibility across projection-compressed observable regimes.

•May 21, 2026•8 citations

QUANTUM MECHANICS AND QUANTUM COSMOLOGY

James B. Hartle

•Mar 1, 1991•0 citations
The accelerating expansion of the universe, described by the Friedmann–Lemaˆıtre–Robertson– Walker (FLRW) metric, establishes a cosmological event horizon beyond which emitted pho-tons recede at effective velocities exceeding the speed of light (c). While general relativity treats this phenomenon as a geometric boundary resulting in causal disconnection, quantuminformation theory requires an account of the physical fate of quantum information crossing this horizon. In this paper, we propose a theoretical framework wherein cosmic metric ex-pansion acts as a Natural Quantum Eraser. We model the recession of quantum states across the cosmological horizon as a continuous, universe-scale decoherence channel that ir-reversibly erases path information (which-way information) for observers within the local causal patch. By synthesizing the FLRW spacetime metric with the Von Neumann entropy formulation and decoherence theory, we demonstrate that cosmic expansion enforces local-ized wave-function collapse without violating the No-Cloning Theorem or unitary quantum evolution. Furthermore, we show that the information ”erased” by the expanding horizondirectly contributes to the local thermodynamic entropy of the observable universe, offeringa novel quantum-informational foundation for the thermodynamic arrow of time.
This work develops a GR–QM–CCC interpenetrating framework within Causal Cloud Cosmology (CCC). Rather than treating general relativity, quantum mechanics, and CCC as mutually exclusive systems, this paper interprets them as different observable layers of continuously accumulated realizable structure. General relativity is preserved as the observable-regime description of curvature geometry. Quantum mechanics is preserved as the predictive framework for observable quantum evolution, probabilities, interference, measurement outcomes, and statistical manifestation. CCC provides an interpretive layer for residual structural continuity, projection-compressed observability, and realization accessibility across observable manifestation regimes. Within this framework, entanglement, interference, decoherence, delayed-choice behavior, weak measurement, localization, temporal observability, cold atom localization, large-molecule interference, and classical emergence are interpreted as observable manifestation regimes under projection-compressed accessibility. Observable fragmentation does not necessarily imply structural fragmentation. Projection compression modifies observable accessibility rather than destroying accumulated realizable structure itself. Residual coherence may remain partially preserved even when local observable manifestation becomes strongly localized or decohered. The paper introduces and organizes key GR–QM–CCC concepts including observable quantum manifestation, residual coherence, realization accessibility, temporal observability, projection-compressed classicality, accessibility-stabilized localization, and unified observable closure. This work does not claim to replace general relativity or quantum mechanics. Instead, it proposes a conservative structural interpretation in which GR describes observable geometry, QM predicts observable manifestation, and CCC interprets residual continuity and realization accessibility across projection-compressed observable regimes.