Gravitational Decoherence: A Thematic Overview
arXiv:2111.02462 · doi:10.1116/5.0077536
Abstract
Gravitational decoherence (GD) refers to the effects of gravity in actuating the classical appearance of a quantum system. Because the underlying processes involve issues in general relativity (GR), quantum field theory (QFT) and quantum information, GD has fundamental theoretical significance. There is a great variety of GD models, many of them involving physics that diverge from GR and/or QFT. This overview has two specific goals along one central theme: (i) present theories of GD based on GR and QFT and explore their experimental predictions; (ii) place other theories of GD under the scrutiny of GR and QFT, and point out their theoretical differences. We also describe how GD experiments in space in the coming decades can provide evidences at two levels: a) discriminate alternative quantum theories and non-GR theories; b) discern whether gravity is a fundamental or an effective theory.
arXiv comment26 pages, Article prepared for the Special Topic Collection "Celebrating Sir Roger Penrose's Nobel Prize"
References in corpus (57)
- Decoherence, the measurement problem, and interpretations of quantum mechanics
- Models of Wave-function Collapse, Underlying Theories, and Experimental Tests
- Classical Equations for Quantum Systems
- Dynamical Reduction Models
- Quantum Decoherence
- On the Consistent Histories Approach to Quantum Mechanics
- A Relativistic Version of the Ghirardi-Rimini-Weber Model
- Universal decoherence due to gravitational time dilation
- String Theory Modifies Quantum Mechanics
- Information Loss
- The Schrödinger-Newton equation and its foundations
- Noise and Fluctuations in Semiclassical Gravity
- Effective Field Theory Approach to Gravitationally Induced Decoherence
- Gravitational Decoherence
- Relativistic state reduction dynamics
- Underground test of gravity-related wave function collapse
- Matter Density and Relativistic Models of Wave Function Collapse
- On Spontaneous Wave Function Collapse and Quantum Field Theory
- A Master Equation for Gravitational Decoherence: Probing the Textures of Spacetime
- Spacetime foam as a quantum thermal bath
- Stochastic Theory of Relativistic Particles Moving in a Quantum Field: II. Scalar Abraham-Lorentz-Dirac-Langevin Equation, Radiation Reaction and Vacuum Fluctuations
- Backreaction in Semiclassical Cosmolgy: The Einstein Langevin Equation
- Quantum Field Theory on Spacetimes with a Compactly Generated Cauchy Horizon
- Emergent/Quantum Gravity: Macro/Micro Structures of Spacetime
- Macroscopic quantum resonators (MAQRO): 2015 Update
- Gravitationally induced inhibitions of dispersion according to the Schrödinger-Newton Equation
- Macroscopic quantum resonators (MAQRO)
- A relational solution to the problem of time in quantum mechanics and quantum gravity induces a fundamental mechanism for quantum decoherence
- Problems with the Newton-Schrödinger Equations
- Stochastic semiclassical fluctuations in Minkowski spacetime
- Einstein-Langevin Equations from Running Coupling Constants
- Probing a Gravitational Cat State
- Stochastic semiclassical cosmological models
- Induced quantum metric fluctuations and the validity of semiclassical gravity
- Realistic clocks, universal decoherence and the black hole information paradox
- On the semiclassical Einstein-Langevin equation
- Quantum gravitational decoherence of light and matter
- Quantum Connectivity of Space-Time and Gravitationally Induced Decorrelation of Entanglement
- Gravitational decoherence
- Testing the foundations of quantum physics in space Interferometric and non-interferometric tests with Large Particles
- Metric fluctuations and decoherence
- Decoherence of quantum wavepackets due to interaction with conformal spacetime fluctuations
- Indirect detection of gravitons through quantum entanglement
- Lorentz invariant intrinsic decoherence
- Gravitational effects in macroscopic quantum systems: a first-principles analysis
- Quantum Theory of Non-Relativistic Particles Interacting with Gravity
- Gravitational decoherence of photons
- Entanglement decoherence in a gravitational well according to the event formalism
- Gravitational Decoherence, Alternative Quantum Theories and Semiclassical Gravity
- Mass-coupled relativistic spontaneous collapse models
- Non-Equilibrium Quantum Electrodynamics
- Decoherence and gravitational backgrounds
- Approximations for the free evolution of self-gravitating quantum particles
- HYPER and gravitational decoherence
- On the decoherence effect of a stochastic gravitational perturbation on scalar matter and the possibility of its interferometric detection
- Quantum-Liouville and Langevin Equations for Gravitational Radiation Damping
- Consistent thermodynamics for spin echoes
Cited by in corpus (19)
- Massive quantum systems as interfaces of quantum mechanics and gravity
- The Deep Space Quantum Link: Prospective Fundamental Physics Experiments using Long-Baseline Quantum Optics
- Tree-level entanglement in Quantum Electrodynamics
- Quantum Noise of Gravitons and Stochastic Force on Geodesic Separation
- Limit on spatial quantum superpositions with massive objects due to phonons
- No intrinsic decoherence of inflationary cosmological perturbations
- A new method for directly computing reduced density matrices
- Distinguishable consequence of classical gravity on quantum matter
- Decoherence and thermalization of Unruh-DeWitt detector in arbitrary dimensions
- Understanding gravitationally induced decoherence parameters in neutrino oscillations using a microscopic quantum mechanical model
- A gravitationally induced decoherence model using Ashtekar variables
- Graviton physics: Quantum field theory of gravitons, graviton noise and gravitational decoherence -- a concise tutorial
- Decoherence and Landauer's Principle in Qubit-Cavity Quantum-Field-Theory Interaction
- Gravitationally induced decoherence of a scalar field: investigating the one-particle sector and its interplay with renormalisation
- A simple gravitational self-decoherence model
- Gravity-mediated decoherence
- Gaussian states in quantum field theory: Exact representations of relative phase in superpositions of Gaussian states
- Quantum internal vibrations in macroscopic systems with classical centers of mass
- Interaction between Everett worlds and fundamental decoherence in Non-unitary Newtonian Gravity