Loss of coherence from discrete quantum gravity

Abstract

We show that a recent proposal for the quantization of gravity based on discrete space-time implies a modification of standard quantum mechanics that naturally leads to a loss of coherence in quantum states of the type discussed by Milburn. The proposal overcomes the energy conservation problem of previously proposed decoherence mechanisms stemming from quantum gravity. Mesoscopic quantum systems (as Bose--Einstein condensates) appear as the most promising testing grounds for an experimental verification of the mechanism.

4 pages, no figures, small final changes, to appear in Class. Quan. Grav

References in corpus (3)

• Collapse and Revival of the Matter Wave Field of a Bose-Einstein Condensate
• Discrete quantum gravity: applications to cosmology
• Consistent discrete gravity solution of the problem of time: a model

Cited by in corpus (30)

• Background Independent Quantum Gravity: A Status Report
• Quantum Spacetime Phenomenology
• The Search for Quantum Gravity Signals
• Fundamental decoherence from quantum gravity: a pedagogical review
• Probing non-standard decoherence effects with solar and KamLAND neutrinos
• A relational solution to the problem of time in quantum mechanics and quantum gravity induces a fundamental mechanism for quantum decoherence
• Lorentz and CPT Invariance Violation In High-Energy Neutrinos
• Realistic clocks, universal decoherence and the black hole information paradox
• Changing quantum reference frames
• Probing quantum decoherence in atmospheric neutrino oscillations with a neutrino telescope
• Metric fluctuations and decoherence
• There is only one time
• Large Energy Superpositions via Rydberg Dressing
• Consistent discretization and loop quantum geometry
• Neutrino oscillation bounds on quantum decoherence
• Dirac-like approach for consistent discretizations of classical constrained theories
• Creating and detecting micro-macro photon-number entanglement by amplifying and de-amplifying a single-photon entangled state
• Could Energy Decoherence due to Quantum Gravity be observed?
• Quantum Space, Quantum Time, and Relativistic Quantum Mechanics
• Fundamental decoherence from relational time in discrete quantum gravity: Galilean covariance
• Understanding gravitationally induced decoherence parameters in neutrino oscillations using a microscopic quantum mechanical model
• Consistent discretizations: the Gowdy spacetimes
• Appearing Out of Nowhere: The Emergence of Spacetime in Quantum Gravity
• Canonical quantum gravity and consistent discretizations
• No black hole information puzzle in a relational universe
• Probing quantum decoherence at Belle II and LHCb
• Relativistic quantum information theory and quantum reference frames
• Neutrino Decoherence via Modified Dispersion
• Consistent discretizations and quantum gravity
• Spontaneous decoherence as a result of randomness in the flow of time