Gravitational interaction through a feedback mechanism
arXiv:2007.11980 · doi:10.1103/PhysRevD.103.056011
Abstract
We study the models of Kafri, Taylor and Milburn (KTM) and Tilloy and Diósi (TD), both of which implement gravity between quantum systems through a continuous measurement and feedback mechanism. The first model is for two particles, moving in one dimension, where the Newtonian potential is linearized. The second is applicable to any quantum system, within the context of Newtonian gravity. We address the issue of how to generalize the KTM model for an arbitrary finite number of particles. We find that the most straightforward generalisations are either inconsistent or are ruled out by experimental evidence. We also show that the TD model does not reduce to the KTM model under the approximations which define the latter model. We then argue that under the simplest conditions, the TD model is the only viable implementation of a full-Newtonian interaction through a continuous measurement and feedback mechanism.
References in corpus (35)
- Observation of Gravitational Waves from a Binary Black Hole Merger
- Quantum entanglement
- The Cosmological Constant and Dark Energy
- Black holes, gravitational waves and fundamental physics: a roadmap
- A Straightforward Introduction to Continuous Quantum Measurement
- Quantum Gravity: a Progress Report
- Everything You Always Wanted to Know About LOCC (But Were Afraid to Ask)
- Quantum feedback: theory, experiments, and applications
- Is Quantum Gravity Necessary?
- Gravitational Decoherence
- Tabletop experiments for quantum gravity: a user's manual
- Locality & Entanglement in Table-Top Testing of the Quantum Nature of Linearized Gravity
- Underground test of gravity-related wave function collapse
- A classical channel model for gravitational decoherence
- Can Gravitons Be Detected?
- Hybrid classical-quantum dynamics
- Sourcing semiclassical gravity from spontaneously localized quantum matter
- Royal Road to Coupling Classical and Quantum Dynamics
- Bounds on quantum communication via Newtonian gravity
- Equilibrium to nonequilibrium condensation in driven-dissipative semiconductor systems
- Optical Hybrid Quantum Information Processing
- Gravity and the Collapse of the Wave Function: a Probe into Diósi-Penrose model
- Gravity is not a Pairwise Local Classical Channel
- Principle of least decoherence for Newtonian semi-classical gravity
- On Quantum Gravity Tests with Composite Particles
- The gravity-related decoherence master equation from hybrid dynamics
- Unitarity, Feedback, Interactions -- Dynamics Emergent from Repeated Measurements
- Ghirardi-Rimini-Weber model with massive flashes
- Detecting gravitational decoherence with clocks: Limits on temporal resolution from a classical channel model of gravity
- Does gravity have to be quantized? Lessons from non-relativistic toy models
- Binding quantum matter and space-time, without romanticism
- Classicality of a quantum oscillator
- Emergent dark energy via decoherence in quantum interactions
- Classical Channel Gravity in the Newtonian Limit
- On GKLS dynamics for local operations and classical communication
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- Semi-classical gravity phenomenology under the causal-conditional quantum measurement prescription
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- Exploring the Effects of Mass Dependence in Spontaneous Collapse Models
- Hybrid Classical-Quantum Newtonian Gravity with stable vacuum
- On the testability of the Károlyházy model
- Gravity as a classical channel and its dissipative generalization
- Testing classical-quantum gravity with geodesic deviation
- Seven non-standard models coupling quantum matter and gravity
- Quantum Physics in Space
- Diffusion Minimization via Optimal Smearing in Collapse and Hybrid Classical-Quantum Gravitational Models