Decoherence induced by long wavelength gravitons
arXiv:1412.4685 · doi:10.1103/PhysRevD.91.044038
Abstract
We discuss how a background bath of gravitons can induce decoherence of quantum systems. The mechanism is dephasing, the loss of phase coherence due to quantum geometry fluctuations caused by the gravitons. This effect is illustrated in a simple analog model of quantum particles in a cavity whose walls undergo position fluctuations, and create the same effect expected from spacetime geometry fluctuations. We obtain an explicit result for the decoherence rate in the limit where the graviton wavelength is large compared to the size of the quantum system, and make some estimates for this rate.
10 pages, 1 figure, Section II incorporates much of the content of arXiv:1205.2348
References in corpus (10)
- Direct Measurement of the Quantum Wavefunction
- Gravitation and quantummechanical localization of macroobjects
- Effective Field Theory Approach to Gravitationally Induced Decoherence
- Gravitons and Lightcone Fluctuations
- Vacuum Energy Density near Fluctuating Boundaries
- Gravitons and Lightcone Fluctuations II: Correlation Functions
- Decoherence of Macroscopic Closed Systems within Newtonian Quantum Gravity
- Gravitational Decoherence, Alternative Quantum Theories and Semiclassical Gravity
- External Time-Varying Fields and Electron Coherence
- Gravity Waves from Quantum Stress Tensor Fluctuations in Inflation
Cited by in corpus (11)
- Noise and decoherence induced by gravitons
- Quantum gravitational decoherence of light and matter
- Indirect detection of gravitons through quantum entanglement
- Graviton Creation by Small Scale Factor Oscillations in an Expanding Universe
- Quantum coherence, radiance, and resistance of gravitational systems
- Loss of coherence and coherence protection from a graviton bath
- Spacetime foam induced collective bundling of intense fields
- Gravitation as a source of decoherence
- Quantum fluctuations of spacetime generate quantum entanglement between gravitationally polarizable subsystems
- Entanglement and squeezing of gravitational waves
- Quantum Response of a Harmonically Trapped Detector to Classical and Non-classical Gravitational Fields