Related papers: Dynamical Casimir effect from fermions in an oscillating bag in 1+1 dimensions

Dynamical Casimir effect from fermions in an oscillating bag in 1+1 dimensions

URL: http://arxiv.org/abs/2111.15642v2
Date: Thu, 24 Feb 2022 13:53:10 GMT
Title: Dynamical Casimir effect from fermions in an oscillating bag in 1+1 dimensions
Authors: C. D. Fosco and G. Hansen
Abstract summary: We evaluate dissipative effects for a system consisting of a massive Dirac field confined between two walls. In the model that we consider, a dimensionless parameter characterizing each wall is tuned so that bag-boundary conditions are attained for a particular value.
Score: 0.0
License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Abstract: We evaluate dissipative effects for a system consisting of a massive Dirac field confined between two walls, one of them oscillating, in 1+1 dimensions. In the model that we consider, a dimensionless parameter characterizing each wall is tuned so that bag-boundary conditions are attained for a particular value. We present explicit results for the probability of creating a fermion pair out of the vacuum, and relate the total vacuum decay probability to the imaginary part of the effective action.

Related papers

Fermionic dynamical Casimir effect: Magnus expansion [0.0]
We study pair creation out of the vacuum, for a system consisting of a massive Dirac field in $1+1$ dimensions. After analyzing some general properties of the vacuum-decay process, we evaluate the corresponding transition amplitude in a Magnus expansion of the S-matrix.
arXiv Detail & Related papers (2024-06-20T20:03:32Z)
Quantum Field Theory in Curved Spacetime Approach to the Backreaction of Dynamical Casimir Effect [0.0]
The backreaction of particle creation to the boundary motion is studied using quantum field theory in curved spacetime technique. In the 3+1 dimension, we find that the backreaction tends to slow down the system to suppress the further particle creation, similar to the case of cosmological particle creation.
arXiv Detail & Related papers (2024-05-16T14:01:48Z)
A non-hermitean momentum operator for the particle in a box [49.1574468325115]
We show how to construct the corresponding hermitean Hamiltonian for the infinite as well as concrete example. The resulting Hilbert space can be decomposed into a physical and unphysical subspace.
arXiv Detail & Related papers (2024-03-20T12:51:58Z)
Dynamical Casimir effect for fermions in 2+1 dimensions [0.0]
We study the fermion pair creation phenomenon due to the time dependence of curves, where boundary conditions are imposed on a Dirac field in 2+1 dimensions. We show that the pair creation effect is maximized for bag boundary conditions, obtained for a particular value of that parameter.
arXiv Detail & Related papers (2023-08-06T16:54:29Z)
Non-Hermitian fermions with effective mass [0.0]
In seeking a Schr"odinger-like theory with PT symmetry is appropriate to assume a complex potential. In seeking a Schr"odinger-like theory with PT symmetry is appropriate to assume a complex potential.
arXiv Detail & Related papers (2023-02-09T15:45:01Z)
Fermion production at the boundary of an expanding universe: a cold-atom gravitational analogue [68.8204255655161]
We study the phenomenon of cosmological particle production of Dirac fermions in a Friedman-Robertson-Walker spacetime. We present a scheme for the quantum simulation of this gravitational analogue by means of ultra-cold atoms in Raman optical lattices.
arXiv Detail & Related papers (2022-12-02T18:28:23Z)
Quantum vibrational mode in a cavity confining a massless spinor field [91.3755431537592]
We analyse the reaction of a massless (1+1)-dimensional spinor field to the harmonic motion of one cavity wall. We demonstrate that the system is able to convert bosons into fermion pairs at the lowest perturbative order.
arXiv Detail & Related papers (2022-09-12T08:21:12Z)
Interplay between optomechanics and the dynamical Casimir effect [55.41644538483948]
We develop a model of a quantum field confined within a cavity with a movable wall where the position of the wall is quantized. We obtain a full description of the dynamics of both the quantum field and the confining wall depending on the initial state of the whole system.
arXiv Detail & Related papers (2022-04-22T14:27:30Z)
Regularized Zero-Range Hamiltonian for a Bose Gas with an Impurity [77.34726150561087]
We study the Hamiltonian for a system of N identical bosons interacting with an impurity. We introduce a three-body force acting at short distances. The effect of this force is to reduce to zero the strength of the zero-range interaction between two particles.
arXiv Detail & Related papers (2022-02-25T15:34:06Z)
Dynamical Casimir Effect and Work in Fermionic Fields [0.0]
We consider a quantum massless fermionic field in (1+1) dimensions in the case of moving boundaries. We find a Hamiltonian describing the dynamics of the field.
arXiv Detail & Related papers (2021-06-28T12:24:23Z)
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)

This list is automatically generated from the titles and abstracts of the papers in this site.