Quantum forces in cavities
- URL: http://arxiv.org/abs/2206.15220v1
- Date: Thu, 30 Jun 2022 12:11:35 GMT
- Title: Quantum forces in cavities
- Authors: E. Cavalcanti and A.P.C. Malbouisson
- Abstract summary: We compute the quantum pressure on the boundaries of a compactified space in a thermal bath.
Considering both periodic and antiperiodic boundary conditions in the cavity, we discuss the attractive or repulsive character of the quantum forces.
- Score: 0.0
- License: http://creativecommons.org/licenses/by/4.0/
- Abstract: We present an alternative route to investigate quantum forces in a cavity,
for both a free scalar field and a free fermionic field. Considering a
generalized Matsubara procedure, we compute the quantum pressure on the
boundaries of a compactified space in a thermal bath. Also, considering both
periodic and antiperiodic boundary conditions in the cavity, we discuss the
attractive or repulsive character of the quantum forces. Our results highlight
the relevance and interdisciplinarity of the generalized Matsubara procedure as
a theoretical platform to manage quantum phenomena in nontrivial topologies.
Related papers
- Emergent Fracton Hydrodynamics in the Fractional Quantum Hall Regime of Ultracold Atoms [41.94295877935867]
We show that in the lowest Landau level the system generically relaxes subdiffusively.
The slow relaxation is understood from emergent conservation laws of the total charge.
We discuss the prospect of rotating quantum gases as well as ultracold atoms in optical lattices for observing this unconventional relaxation dynamics.
arXiv Detail & Related papers (2024-10-09T18:00:02Z) - Embezzling entanglement from quantum fields [41.94295877935867]
Embezzlement of entanglement refers to the counterintuitive possibility of extracting entangled quantum states from a reference state of an auxiliary system.
We uncover a deep connection between the operational task of embezzling entanglement and the mathematical classification of von Neumann algebras.
arXiv Detail & Related papers (2024-01-14T13:58:32Z) - Matter relative to quantum hypersurfaces [44.99833362998488]
We extend the Page-Wootters formalism to quantum field theory.
By treating hypersurfaces as quantum reference frames, we extend quantum frame transformations to changes between classical and nonclassical hypersurfaces.
arXiv Detail & Related papers (2023-08-24T16:39:00Z) - Quantum Reference Frames at the Boundary of Spacetime [0.0]
An analysis is given of the local phase space of gravity coupled to matter to second order in perturbation theory.
The boundary modes take the role of reference frames for both diffeomorphisms and internal Lorentz rotations.
A multi-fingered Schr"odinger equation determines the relational evolution of the quantum states in the bulk.
arXiv Detail & Related papers (2023-02-22T20:10:03Z) - Measurement phase transitions in the no-click limit as quantum phase
transitions of a non-hermitean vacuum [77.34726150561087]
We study phase transitions occurring in the stationary state of the dynamics of integrable many-body non-Hermitian Hamiltonians.
We observe that the entanglement phase transitions occurring in the stationary state have the same nature as that occurring in the vacuum of the non-hermitian Hamiltonian.
arXiv Detail & Related papers (2023-01-18T09:26:02Z) - Scalar-Mediated Quantum Forces Between Macroscopic Bodies and
Interferometry [0.0]
We study the quantum force between classical objects mediated by massive scalar fields bilinearly coupled to matter.
We show that the quantum pressure inside a Dirichlet sphere is finite -- up to renormalizable divergences.
In plane-point geometry we show how to compute the contribution of the quantum force to the phase shift observable in atom interferometers.
arXiv Detail & Related papers (2022-03-02T19:00:04Z) - From geometry to coherent dissipative dynamics in quantum mechanics [68.8204255655161]
We work out the case of finite-level systems, for which it is shown by means of the corresponding contact master equation.
We describe quantum decays in a 2-level system as coherent and continuous processes.
arXiv Detail & Related papers (2021-07-29T18:27:38Z) - Decoherence of Dirac-particle quantumness for fermionic fields in a
dilatonic black hole [5.025019042624117]
We develop a general Bloch vector representation of quantum channel in black hole spacetimes beyond single mode approximation.
The interplay between the external reservoir noise and dilaton black hole on the dynamical behavior of quantum coherence and steerability is investigated.
arXiv Detail & Related papers (2021-05-20T12:58:30Z) - Topological Pauli Phase and Fractional Quantization of Orbital Angular
Momentum in the Problems of Classical and Quantum Physics [0.0]
In few-electron circular quantum dots the choice between integer and half-integer quantization of orbital angular momenta is defined by the Pauli principle.
In a gapless graphene, as in the case of gapped one, in the presence of overcharged impurity this problem can be solved experimentally.
arXiv Detail & Related papers (2021-02-17T17:18:18Z) - On quantum Hall effect, Kosterlitz-Thouless phase transition, Dirac
magnetic monopole, and Bohr-Sommerfeld quantization [0.0]
We address quantization phenomena in transport and vortex/precession-motion of low-dimensional systems.
We discuss how the self-consistent Bohr-Sommerfeld quantization condition permeates the relationships between the quantization of integer Hall effect.
arXiv Detail & Related papers (2020-09-16T17:57:14Z) - 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)
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.