Bulk contributions to the Casimir interaction of Dirac materials

• URL: http://arxiv.org/abs/2107.10369v1
• Date: Wed, 21 Jul 2021 21:57:17 GMT
• Title: Bulk contributions to the Casimir interaction of Dirac materials
• Authors: M. Bordag, I. Fialkovsky, N. Khusnutdinov, and D. Vassilevich
• Abstract summary: We compute the bulk polarization tensor and bulk dielectric functions for Dirac materials in the presence of a mass gap, chemical potential, and finite temperature. Using these results, we study the Casimir interaction of Dirac materials.
• Score: 0.0
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Exploiting methods of Quantum Field Theory we compute the bulk polarization tensor and bulk dielectric functions for Dirac materials in the presence of a mass gap, chemical potential, and finite temperature. Using these results (and neglecting eventual boundary effects), we study the Casimir interaction of Dirac materials. We describe in detail the characteristic features of the dielectric functions and their influence on the Casimir pressure.

Related papers

• Macroscopic Quantum Electrodynamics with Gain: Modified Fluctuations and Their Consequences [0.0]
  MQED provides a unified framework to describe quantum electromagnetic fields in the presence of arbitrary macroscopic environments.<n>In this tutorial, we provide an overview of MQED and its extension to active media, highlighting fluctuation-induced forces as manifestations of gain-modified field correlations.
  arXiv  Detail & Related papers  (2026-02-25T21:38:59Z)
• The Casimir-Polder interaction between atoms and hollow-core fibers [0.0]
  We investigate the Casimir-Polder interaction for atoms near cylindrical fibers with hollow cores.<n>Specifically, we analyze how the interplay of both geometrical and material-related length scales characterize the interaction.<n>We provide a detailed analytical investigation of how various material properties modify the Casimir-Polder potential.
  arXiv  Detail & Related papers  (2025-12-12T14:41:03Z)
• First-principle theory of the Casimir screening effect [0.0]
  We show that the contribution of ionic fluctuations is separate from the contribution of electromagnetic fluctuations. This is in line with the "separation hypothesis", which was previously used on a purely intuitive basis.
  arXiv  Detail & Related papers  (2024-11-19T17:00:47Z)
• Casimir effect in magnetic dual chiral density waves [0.0]
  We theoretically investigate the Casimir effect originating from Dirac fields in finite-density matter under a magnetic field. In particular, we focus on quark fields in the magnetic dual chiral density wave (MDCDW) phase as a possible inhomogeneous ground state of interacting Dirac-fermion systems.
  arXiv  Detail & Related papers  (2024-11-18T19:00:02Z)
• Searching Repulsive Casimir Forces Between Magneto-Electric Materials [0.0]
  We calculate the Casimir forces between magneto-electric materials and obtain a phase diagram governing the sign of symmetry-breaking-induced Casimir forces.<n>Our results contribute to a better understanding of the sign of the Casimir force, a subject bearing both theoretical interest and practical significance.
  arXiv  Detail & Related papers  (2024-03-01T18:41:04Z)
• 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)
• Nonperturbative Casimir effects: Vacuum structure, Confinement, and Chiral Symmetry Breaking [91.3755431537592]
  We consider phase properties of confining gauge theories and strongly interacting fermion systems. In particular, the chiral and deconfinement phase transitions properties in the presence of Casimir plates.
  arXiv  Detail & Related papers  (2022-08-06T07:39:36Z)
• 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)
• Observation of Universal Hall Response in Strongly Interacting Fermions [0.0]
  We use an atomic quantum simulator to track the motion of ultracold fermions in two-leg ribbons threaded by artificial magnetic fields. We unveil a universal interaction-independent behavior above an interaction threshold, in agreement with theoretical analyses.
  arXiv  Detail & Related papers  (2022-05-26T18:15:06Z)
• Something Can Come of Nothing: Surface Approaches to Quantum Fluctuations and the Casimir Force [0.0]
  The Casimir force provides a striking example of the effects of quantum fluctuations in a mesoscopic system. Because it arises from the objects' electromagnetic response, the necessary calculations in quantum field theory are most naturally expressed in terms of electromagnetic scattering from each object.
  arXiv  Detail & Related papers  (2022-02-11T01:06:00Z)
• Effective Hamiltonians in Nonrelativistic Quantum Electrodynamics [0.0]
  We consider some second-order effective Hamiltonians describing the interaction of the quantum electromagnetic field with atoms or molecules in the nonrelativistic limit. These effective Hamiltonians allow for a considerable simplification of the calculation of radiative energy shifts, dispersion, and Casimir-Polder interactions.
  arXiv  Detail & Related papers  (2021-12-10T15:48:24Z)
• Molecular Interactions Induced by a Static Electric Field in Quantum Mechanics and Quantum Electrodynamics [68.98428372162448]
  We study the interaction between two neutral atoms or molecules subject to a uniform static electric field. Our focus is to understand the interplay between leading contributions to field-induced electrostatics/polarization and dispersion interactions.
  arXiv  Detail & Related papers  (2021-03-30T14:45:30Z)
• Enhanced decoherence for a neutral particle sliding on a metallic surface in vacuum [68.8204255655161]
  We show that non-contact friction enhances the decoherence of the moving atom. We suggest that measuring decoherence times through velocity dependence of coherences could indirectly demonstrate the existence of quantum friction.
  arXiv  Detail & Related papers  (2020-11-06T17:34:35Z)
• The Neutrino Casimir Force [77.34726150561087]
  We calculate the neutrino Casimir force between plates, allowing for two different mass eigenstates within the loop. We discuss the possibility of distinguishing whether neutrinos are Majorana or Dirac fermions using these quantum forces.
  arXiv  Detail & Related papers  (2020-03-24T18:00:02Z)
• Quantum decoherence by Coulomb interaction [58.720142291102135]
  We present an experimental study of the Coulomb-induced decoherence of free electrons in a superposition state in a biprism electron interferometer close to a semiconducting and metallic surface. The results will enable the determination and minimization of specific decoherence channels in the design of novel quantum instruments.
  arXiv  Detail & Related papers  (2020-01-17T04:11:44Z)

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.