Motion-driven quantum dissipation in an open electronic system with nonlocal interaction

• URL: http://arxiv.org/abs/2408.13163v1
• Date: Fri, 23 Aug 2024 15:36:23 GMT
• Title: Motion-driven quantum dissipation in an open electronic system with nonlocal interaction
• Authors: Yang Wang, Ruanjing Zhang, Feiyi Liu,
• Abstract summary: We study excitations and dissipation in two infinite parallel metallic plates with relative motion. The process of relative motion induces on-shell excitations, similar to the dissipative process of the Schwinger effect.
• Score: 3.9408262382784236
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: In this paper, we study excitations and dissipation in two infinite parallel metallic plates with relative motion. We model the degrees of freedom of the electrons in both plates using the 1+2 dimensional Dirac field and select a nonlocal potential to describe the interaction between the two plates. The internal relative motion is introduced via a Galilean boost, assuming one plate slides relative to the other. We then calculate the effective action of the system and derive the vacuum occupation number in momentum space using a perturbative method. The numerical plots show that, as a function of momentum the vacuum occupation number is isotropic for a motion speed v = 0 and anisotropic for nonzero v. Due to energy transfer between the plates, the process of relative motion induces on-shell excitations, similar to the dissipative process of the Schwinger effect. Therefore, we can study the motion-induced dissipation effects and the dissipative forces via quantum action. The numerical results demonstrate that both the imaginary part of the quantum action for the motion boost and the dissipative force have a threshold as a function of v, and both are positively correlated with v.

Related papers

• The quantum Hall effect under the influence of gravity and inertia: A unified approach [44.99833362998488]
  We examine how both the integer and the fractional quantum Hall effects behave under a combined influence of gravity and inertia. The general Hamiltonian for describing the combined effect of gravity, rotation and inertia on the electrons of a Hall sample is then built and the eigenstates are obtained.
  arXiv  Detail & Related papers  (2024-03-11T18:01:55Z)
• Optical and electronic properties of a two-dimensional quantum ring under rotating effects [1.6439662732340548]
  This work presents a study on the nonrelativistic quantum motion of a charged particle in a rotating frame. We derive the equation of motion and the corresponding radial equation to describe the system.
  arXiv  Detail & Related papers  (2023-05-25T19:49:17Z)
• Motion of an electron through vacuum fluctuations [0.0]
  We derive the equation of motion for the expectation value of the electron's position operator. We show that decoherence due to vacuum fluctuations does not correspond to actual irreversible loss of coherence.
  arXiv  Detail & Related papers  (2023-01-27T19:00:07Z)
• Probing dynamics of a two-dimensional dipolar spin ensemble using single qubit sensor [62.997667081978825]
  We experimentally investigate individual spin dynamics in a two-dimensional ensemble of electron spins on the surface of a diamond crystal. We show that this anomalously slow relaxation rate is due to the presence of strong dynamical disorder. Our work paves the way towards microscopic study and control of quantum thermalization in strongly interacting disordered spin ensembles.
  arXiv  Detail & Related papers  (2022-07-21T18:00:17Z)
• Motion-induced spin transfer [0.0]
  We propose a spin transport induced by inertial motion. One of the hosts is sliding at a constant speed relative to the other. Those shifts induce the difference in the distribution function between the two media and result in tunnelling spin current.
  arXiv  Detail & Related papers  (2021-10-12T10:18:40Z)
• Dispersive readout of molecular spin qudits [68.8204255655161]
  We study the physics of a magnetic molecule described by a "giant" spin with multiple $d > 2$ spin states. We derive an expression for the output modes in the dispersive regime of operation. We find that the measurement of the cavity transmission allows to uniquely determine the spin state of the qudits.
  arXiv  Detail & Related papers  (2021-09-29T18:00:09Z)
• Interaction of the magnetic quadrupole moment of a non-relativistic particle with an electric field in the background of screw dislocations with a rotating frame [0.0]
  We consider a moving particle with a magnetic quadrupole moment in an elastic medium in the presence of a screw dislocation. We derive wave and energy eigenvalue functions by employing analytical methods for two interaction configurations. Due to the topological defect in the medium, we observed a shift in the angular momentum quantum number which affects the energy eigenvalues and the wave function of the system.
  arXiv  Detail & Related papers  (2021-06-08T20:20:30Z)
• Motion-induced radiation due to an atom in the presence of a graphene plane [62.997667081978825]
  We study the motion-induced radiation due to the non-relativistic motion of an atom in the presence of a static graphene plate. We show that the effect of the plate is to increase the probability of emission when the atom is near the plate and oscillates along a direction perpendicular to it.
  arXiv  Detail & Related papers  (2021-04-15T14:15:23Z)
• 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)
• Retarded resonance Casimir-Polder interaction of a uniformly rotating two-atom system [0.0]
  We calculate the second-order energy shift of the entangled states in the presence of two kinds of fields. A unique retarded response is also noticed in comparison to the free massless case.
  arXiv  Detail & Related papers  (2020-08-30T14:31:59Z)
• Theory of waveguide-QED with moving emitters [68.8204255655161]
  We study a system composed by a waveguide and a moving quantum emitter in the single excitation subspace. We first characterize single-photon scattering off a single moving quantum emitter, showing both nonreciprocal transmission and recoil-induced reduction of the quantum emitter motional energy.
  arXiv  Detail & Related papers  (2020-03-20T12:14:10Z)

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.