Casimir entropy and nonlocal response functions to the off-shell quantum
fluctuations
- URL: http://arxiv.org/abs/2104.06351v2
- Date: Wed, 12 May 2021 09:15:53 GMT
- Title: Casimir entropy and nonlocal response functions to the off-shell quantum
fluctuations
- Authors: G. L. Klimchitskaya and V. M. Mostepanenko
- Abstract summary: We find expressions for the Casimir free energy and entropy at arbitrarily low temperature in the configuration of two parallel metallic plates.
The entropy goes to zero with vanishing temperature, i.e., satisfies the Nernst heat theorem.
- Score: 0.0
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: The nonlocal response functions to quantum fluctuations are used to find
asymptotic expressions for the Casimir free energy and entropy at arbitrarily
low temperature in the configuration of two parallel metallic plates. It is
shown that by introducing an alternative nonlocal response to the
off-the-mass-shell fluctuations the Lifshitz theory is brought into agreement
with the requirements of thermodynamics. According to our results, the Casimir
entropy calculated using the nonlocal response functions, which take into
account dissipation of conduction electrons, remains positive and monotonously
goes to zero with vanishing temperature, i.e., satisfies the Nernst heat
theorem. This is true for both plates with perfect crystal lattices and for
lattices with defects of structure. The obtained results are discussed in the
context of the Casimir puzzle.
Related papers
- Thermodynamics of adiabatic quantum pumping in quantum dots [50.24983453990065]
We consider adiabatic quantum pumping through a resonant level model, a single-level quantum dot connected to two fermionic leads.
We develop a self-contained thermodynamic description of this model accounting for the variation of the energy level of the dot and the tunnelling rates with the thermal baths.
arXiv Detail & Related papers (2023-06-14T16:29:18Z) - Demonstrating Quantum Microscopic Reversibility Using Coherent States of
Light [58.8645797643406]
We propose and experimentally test a quantum generalization of the microscopic reversibility when a quantum system interacts with a heat bath.
We verify that the quantum modification for the principle of microscopic reversibility is critical in the low-temperature limit.
arXiv Detail & Related papers (2022-05-26T00:25:29Z) - Casimir effect for magnetic media: Spatially nonlocal response to the
off-shell quantum fluctuation [0.0]
We extend the Lifshitz theory of the Casimir force to the case of two parallel magnetic metal plates.
We compute the gradient of the Casimir force between Ni-coated surfaces of a sphere and a plate using the alternative nonlocal response functions.
arXiv Detail & Related papers (2021-10-04T09:50:58Z) - Casimir Puzzle and Casimir Conundrum: Discovery and Search for
Resolution [0.0]
The Casimir entropy calculated in the framework of the Lifshitz theory violates the Nernst heat theorem.
The review presents a summary of the main facts on this subject on both theoretical and experimental sides.
arXiv Detail & Related papers (2021-04-03T18:40:46Z) - Taking the temperature of a pure quantum state [55.41644538483948]
Temperature is a deceptively simple concept that still raises deep questions at the forefront of quantum physics research.
We propose a scheme to measure the temperature of such pure states through quantum interference.
arXiv Detail & Related papers (2021-03-30T18:18:37Z) - Evolution of a Non-Hermitian Quantum Single-Molecule Junction at
Constant Temperature [62.997667081978825]
We present a theory for describing non-Hermitian quantum systems embedded in constant-temperature environments.
We find that the combined action of probability losses and thermal fluctuations assists quantum transport through the molecular junction.
arXiv Detail & Related papers (2021-01-21T14:33:34Z) - An alternative response to the off-shell quantum fluctuations: A step
forward in resolution of the Casimir puzzle [0.0]
We show that the Lifshitz theory comes to an agreement with the measurement data for the Casimir force without neglecting the dissipation of free electrons.
An application of these results to resolution of the Casimir puzzle lies in the fact that the Lifshitz theory is experimentally consistent only with discarded dissipation.
arXiv Detail & Related papers (2020-10-02T13:46:56Z) - Casimir and Casimir-Polder Forces in Graphene Systems: Quantum Field
Theoretical Description and Thermodynamics [0.0]
We review recent results on the low-temperature behaviors of the Casimir-Polder and Casimir free energy an entropy for a polarizable atom interacting with a graphene sheet.
We present some new findings concerning the case of zero gap and nonzero chemical potential.
arXiv Detail & Related papers (2020-09-21T16:03:36Z) - Quantum corrections to the entropy in a driven quantum Brownian motion
model [2.28438857884398]
We study the von Neumann entropy of a particle undergoing quantum Brownian motion.
Our results bring important insights to the understanding of entropy in open quantum systems.
arXiv Detail & Related papers (2020-08-05T14:13:39Z) - Temperature of a finite-dimensional quantum system [68.8204255655161]
A general expression for the temperature of a finite-dimensional quantum system is deduced from thermodynamic arguments.
Explicit formulas for the temperature of two and three-dimensional quantum systems are presented.
arXiv Detail & Related papers (2020-05-01T07:47:50Z) - Out-of-equilibrium quantum thermodynamics in the Bloch sphere:
temperature and internal entropy production [68.8204255655161]
An explicit expression for the temperature of an open two-level quantum system is obtained.
This temperature coincides with the environment temperature if the system reaches thermal equilibrium with a heat reservoir.
We show that within this theoretical framework the total entropy production can be partitioned into two contributions.
arXiv Detail & Related papers (2020-04-09T23:06:43Z)
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.