Stochastic Ricci Flow dynamics of the gravitationally induced
wave-function collapse
- URL: http://arxiv.org/abs/2307.10136v1
- Date: Wed, 19 Jul 2023 17:00:48 GMT
- Title: Stochastic Ricci Flow dynamics of the gravitationally induced
wave-function collapse
- Authors: Matteo Lulli, Antonino Marciano and Kristian Piscicchia
- Abstract summary: We reconcile the wave-function collapse in quantum mechanics with the finiteness of signals' propagation in general relativity.
We derive the Di'osi-Penrose collapse model for the wave-function of a quantum gas.
- Score: 0.0
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: In order to reconcile the wave-function collapse in quantum mechanics with
the finiteness of signals' propagation in general relativity, we delve into a
stochastic version of the Ricci flow and study its non-relativistic limit in
presence of matter. We hence derive the Di\'osi-Penrose collapse model for the
wave-function of a quantum gas. The procedure entails additional parameters
with respect to phenomenological models hitherto accounted for, including the
temperature of the gas and the cosmological constant, in turn related to the
stochastic gravitational noise responsible for the collapse.
Related papers
- Quantum gravitational decoherence of a mechanical oscillator from spacetime fluctuations [0.0]
We consider the scenario of a fluctuating spacetime due to a deformed commutation relation with a fluctuating deformation parameter, or to a fluctuating metric tensor.
By computing the resulting dynamics and averaging over these fluctuations, we find that a system experiences a decoherence in the momentum basis.
arXiv Detail & Related papers (2024-11-20T18:19:07Z) - Quantum Effects on the Synchronization Dynamics of the Kuramoto Model [62.997667081978825]
We show that quantum fluctuations hinder the emergence of synchronization, albeit not entirely suppressing it.
We derive an analytical expression for the critical coupling, highlighting its dependence on the model parameters.
arXiv Detail & Related papers (2023-06-16T16:41:16Z) - Entanglement R\'enyi Entropies from Ballistic Fluctuation Theory: the
free fermionic case [0.0]
We investigate entanglement entropy using its connection with the large-deviation theory for thermodynamic and hydrodynamic fluctuations.
We show that both the equilibrium behavior and the dynamics of R'enyi entanglement entropies can be fully derived from the Ballistic Fluctuation Theory.
arXiv Detail & Related papers (2023-01-05T23:09:48Z) - New insights on the quantum-classical division in light of Collapse
Models [63.942632088208505]
We argue that the division between quantum and classical behaviors is analogous to the division of thermodynamic phases.
A specific relationship between the collapse parameter $(lambda)$ and the collapse length scale ($r_C$) plays the role of the coexistence curve in usual thermodynamic phase diagrams.
arXiv Detail & Related papers (2022-10-19T14:51:21Z) - Master equations for Wigner functions with spontaneous collapse and
their relation to thermodynamic irreversibility [0.0]
Wigner functions, allowing for a reformulation of quantum mechanics in phase space, are of central importance for the study of the quantum-classical transition.
We derive the dynamic equations for the four most important spontaneous collapse models.
We use the phase-space form of GRW theory to test, via molecular dynamics simulations, David Albert's suggestion that the masterity induced by spontaneous collapses is responsible for the emergence of thermodynamic irreversibility.
arXiv Detail & Related papers (2021-05-31T23:08:21Z) - Characterizing Topological Excitations of a Long-Range Heisenberg Model
with Trapped Ions [0.0]
We propose a Floquet protocol to realize the antiferromagnetic Heisenberg model with power-law decaying interactions.
We show that this model features a quantum phase transition from a liquid to a valence bond solid that spontaneously breaks lattice translational symmetry.
We moreover introduce an interferometric protocol to characterize the topological excitations and the bulk topological invariants of the interacting many-body system.
arXiv Detail & Related papers (2020-12-16T19:00:02Z) - Particle mixing and the emergence of classicality: A
spontaneous-collapse-model view [0.0]
We show that spontaneous collapse can induce the decay dynamics in both quantum state and master equations.
We show that the decay property of a flavor-oscillating system is intimately connected to the time (a)symmetry of the noise field underlying the collapse mechanism.
arXiv Detail & Related papers (2020-08-25T16:07:59Z) - Analog cosmological reheating in an ultracold Bose gas [58.720142291102135]
We quantum-simulate the reheating-like dynamics of a generic cosmological single-field model in an ultracold Bose gas.
Expanding spacetime as well as the background oscillating inflaton field are mimicked in the non-relativistic limit.
The proposed experiment has the potential of exploring the evolution up to late times even beyond the weak coupling regime.
arXiv Detail & Related papers (2020-08-05T18:00:26Z) - Probing eigenstate thermalization in quantum simulators via
fluctuation-dissipation relations [77.34726150561087]
The eigenstate thermalization hypothesis (ETH) offers a universal mechanism for the approach to equilibrium of closed quantum many-body systems.
Here, we propose a theory-independent route to probe the full ETH in quantum simulators by observing the emergence of fluctuation-dissipation relations.
Our work presents a theory-independent way to characterize thermalization in quantum simulators and paves the way to quantum simulate condensed matter pump-probe experiments.
arXiv Detail & Related papers (2020-07-20T18:00:02Z) - Unraveling the topology of dissipative quantum systems [58.720142291102135]
We discuss topology in dissipative quantum systems from the perspective of quantum trajectories.
We show for a broad family of translation-invariant collapse models that the set of dark state-inducing Hamiltonians imposes a nontrivial topological structure on the space of Hamiltonians.
arXiv Detail & Related papers (2020-07-12T11:26:02Z) - From stochastic spin chains to quantum Kardar-Parisi-Zhang dynamics [68.8204255655161]
We introduce the asymmetric extension of the Quantum Symmetric Simple Exclusion Process.
We show that the time-integrated current of fermions defines a height field which exhibits a quantum non-linear dynamics.
arXiv Detail & Related papers (2020-01-13T14:30:36Z)
This list is automatically generated from the titles and abstracts of the papers in this site.
This site does not guarantee the quality of this site (including all information) and is not responsible for any consequences.