18 citations · 48 across the 5 of their papers we have counts for
4 papers · 1 filter
Quantum field theory at finite temperature for 3D periodic backgrounds
Lucia Santamaria-Sanz
The one-loop quantum corrections to the internal energy of some lattices due to the quantum fluctuations of the scalar field of phonons are studied. The band spectrum of the lattic…
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…
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…
Vacuum energy for generalised Dirac combs at
Michael Bordag, Jose M Muñoz-Castañeda, Lucía Santamaría-Sanz
The quantum vacuum energy for a hybrid comb of Dirac - potentials is computed using the energy of the single - potential over the real line that makes up the comb. Th…