Astrophysical and Cosmological Tests of Quantum Theory

Abstract

We discuss several proposals for astrophysical and cosmological tests of quantum theory. The tests are motivated by deterministic hidden-variables theories, and in particular by the view that quantum physics is merely an effective theory of an equilibrium state. The proposed tests involve searching for nonequilibrium violations of quantum theory in: primordial inflaton fluctuations imprinted on the cosmic microwave background, relic cosmological particles, Hawking radiation, photons with entangled partners inside black holes, neutrino oscillations, and particles from very distant sources.

arXiv comment25 pages. Amendment to section 7. Contribution to: "The Quantum Universe", special issue of Journal of Physics A, dedicated to Prof. G.-C. Ghirardi on the occasion of his seventieth birthday

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Cited by in corpus (29)

• Cosmological Inflation and the Quantum Measurement Problem
• Quantum cosmology from the de Broglie-Bohm perspective
• Timescales for dynamical relaxation to the Born rule
• Inflationary Cosmology as a Probe of Primordial Quantum Mechanics
• De Broglie-Bohm Guidance Equations for Arbitrary Hamiltonians
• Long-time relaxation in pilot-wave theory
• Primordial quantum nonequilibrium and large-scale cosmic anomalies
• Quantum non-equilibrium and relaxation to equilibrium for a class of de Broglie-Bohm-type theories
• Instability of quantum equilibrium in Bohm's dynamics
• Quantum field theory of relic nonequilibrium systems
• Mechanism for the suppression of quantum noise at large scales on expanding space
• Robust predictions for the large-scale cosmological power deficit from primordial quantum nonequilibrium
• Relaxation to quantum equilibrium for Dirac fermions in the de Broglie-Bohm pilot-wave theory
• A Toy Model for Local and Deterministic Wave-function Collapse
• De Broglie-Bohm Quantum Mechanics
• Beyond the Born rule in quantum gravity
• Anomalous spectral lines and relic quantum nonequilibrium
• Towards Searching for Entangled Photons in the CMB Sky
• A local $\psi$-epistemic retrocausal hidden-variable model of Bell correlations with wavefunctions in physical space
• Extreme quantum nonequilibrium, nodes, vorticity, drift, and relaxation retarding states
• Perturbations and quantum relaxation
• Superdeterministic hidden-variables models II: conspiracy
• Mechanism for nonlocal information flow from black holes
• On the zig-zag pilot-wave approach for fermions
• Evolution of Quantum Nonequilibrium for Coupled Harmonic Oscillators
• Physical interpretation of non-normalizable harmonic oscillator states and relaxation to pilot-wave equilibrium
• Quantum relaxation in a system of harmonic oscillators with time-dependent coupling
• Gravity-induced entanglement between two massive microscopic particles in curved spacetime: II.Friedmann- Lemaître-Robertson-Walker universe
• Towards a test of the Born rule in high-energy collisions