Related papers: Finite Temperature Casimir Effect of Scalar Field

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Casimir Physics beyond the Proximity Force Approximation: The Derivative Expansion [49.1574468325115]
We review the derivative expansion (DE) method in Casimir physics, an approach which extends the proximity force approximation (PFA) We focus on different particular geometries, boundary conditions, types of fields, and quantum and thermal fluctuations.
arXiv Detail & Related papers (2024-02-27T19:56:52Z)
Casimir effect in axion electrodynamics with lattice regularizations [0.0]
The Casimir effect is induced by the interplay between photon fields and boundary conditions. We propose a theoretical approach to derive the Casimir effect in axion electrodynamics.
arXiv Detail & Related papers (2023-10-27T12:29:01Z)
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A quantum bundle $L_hbar$ is endowed with a connection $A_hbar$ and its sections are standard wave functions $psi$ obeying the Schr"odinger equation. We will lift the bundles $L_Cpm$ and connection $A_hbar$ on them to the relativistic phase space $T*R3,1$ and couple them to the Dirac spinor bundle describing both particles and antiparticles.
arXiv Detail & Related papers (2023-10-10T10:27:09Z)
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arXiv Detail & Related papers (2023-09-21T18:11:04Z)
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arXiv Detail & Related papers (2023-09-14T16:41:28Z)
Quantum thermodynamics of de Sitter space [49.1574468325115]
We consider the local physics of an open quantum system embedded in an expanding three-dimensional space. For a de Sitter space with Hubble parameter $h = $ const., the background fields act as a physical heat bath.
arXiv Detail & Related papers (2023-07-10T18:00:09Z)
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Dirac/Weyl-node-induced oscillating Casimir effect [0.0]
The Casimir effect is a quantum phenomenon induced by the zero-point energy of relativistic fields confined in a finite-size system. We show the typical properties of the Casimir effect for relativistic electron fields in Dirac/Weyl semimetals. We find an oscillation of the Casimir energy as a function of the thickness of the thin film, which stems from the existence of Dirac/Weyl nodes in momentum space.
arXiv Detail & Related papers (2022-07-28T13:33:54Z)
Beyond the Berry Phase: Extrinsic Geometry of Quantum States [77.34726150561087]
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arXiv Detail & Related papers (2022-05-30T18:01:34Z)
Current status of the problem of thermal Casimir force [0.0]
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arXiv Detail & Related papers (2022-04-13T10:40:54Z)
Three-body recombination in a single-component Fermi gas with $p$-wave interaction [2.6641834518599308]
We study the three-body recombination of identical fermionic atoms. We show that the rate constant of three-body recombination into weakly bound $p$-wave dimers can be written as $alpha_rm rec propto v5/2R1/2 k_T4.
arXiv Detail & Related papers (2022-01-04T03:55:23Z)
Blackbody thermodynamics in the presence of Casimir's effect [0.0]
This paper is a study of the electromagnetic radiation at temperature $T$ in a thin slab whose walls are made of a perfect conductor. We take $T$, $A$, and $d$ as thermodynamic parameters, obtaining the free energy from a procedure that involves the integration over the slab of the ensemble average of the stress-energy-momentum tensor calculated long ago by Brown and Maclay.
arXiv Detail & Related papers (2021-12-27T10:12:56Z)
Casimir entropy and nonlocal response functions to the off-shell quantum fluctuations [0.0]
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.
arXiv Detail & Related papers (2021-04-13T16:54:46Z)
Exact thermal properties of free-fermionic spin chains [68.8204255655161]
We focus on spin chain models that admit a description in terms of free fermions. Errors stemming from the ubiquitous approximation are identified in the neighborhood of the critical point at low temperatures.
arXiv Detail & Related papers (2021-03-30T13:15:44Z)
Casimir Interaction Between a Plane and a Sphere: Correction to the Proximity-Force Approximation at Intermediate Temperatures [0.0]
We consider the Casimir interaction energy between a plane and a sphere of radius $R$ at finite temperature $T$. We derive the leading correction to the proximity-force approximation valid for such intermediate temperatures by developing the scattering formula in the plane-wave basis.
arXiv Detail & Related papers (2021-03-25T15:39:50Z)
Infinite-Horizon Offline Reinforcement Learning with Linear Function Approximation: Curse of Dimensionality and Algorithm [46.36534144138337]
In this paper, we investigate the sample complexity of policy evaluation in offline reinforcement learning. Under the low distribution shift assumption, we show that there is an algorithm that needs at most $Oleft(maxleft fracleftVert thetapirightVert _24varepsilon4logfracddelta,frac1varepsilon2left(d+logfrac1deltaright)right right)$ samples to approximate the
arXiv Detail & Related papers (2021-03-17T18:18:57Z)
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)
Universal criticality of thermodynamic curvatures for charged AdS black holes [0.0]
We analytically study the critical exponents and universal amplitudes of the curvatures at the critical point of the small-large black hole phase transition for the charged AdS black holes. Such universal properties will cast new insight into the thermodynamic geometries and black hole phase transitions.
arXiv Detail & Related papers (2020-07-07T07:51:01Z)
Quantum field theoretical description of the Casimir effect between two real graphene sheets and thermodynamics [0.0]
Graphene is described in the framework of thermal quantum field theory in the Matsubara formulation. Different expressions are found under the conditions $Delta>2mu$, $Delta=2mu$, and $Delta2mu$. For both $Delta>2mu$ and $Delta2mu$ the Casimir entropy satisfies the third law of thermodynamics.
arXiv Detail & Related papers (2020-06-28T09:43:18Z)
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)
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)

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