3 papers
hep-th2020
Thermal Casimir effect with general boundary conditions
J. M. Munoz-Castaneda, L. Santamaria-Sanz, M. Donaire +1
In this paper we study the system of a scalar quantum field confined between two plane, isotropic, and homogeneous parallel plates at thermal equilibrium. We represent the plates b…
math-ph2019
Free energy and entropy for finite temperature quantum field theory under the influence of periodic backgrounds
M. Bordag, J. M. Muñoz-Castañeda, L. Santamaría-Sanz
The basic thermodynamic quantities for a non-interacting scalar field in a periodic potential composed of either a one-dimensional chain of Dirac - functions or a spec…
math-ph2019
One-dimensional scattering of fermions on -impurities
J. Mateos Guilarte, Jose M. Munoz-Castaneda, Irina Pirozhenko +1
We study the spectrum of the 1D Dirac Hamiltonian encompassing the bound and scattering states of a fermion distorted by a static background built from -function potentials. We…