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5 papers · 1 filter
Exact Effective action for (1+1)-dimensional fermions in an Abelian background at finite temperature and chemical potential
Soraya G. Maciel, Silvana Perez
In this paper we study the effects of a nonzero chemical potential in the effective action for massless fermions in (1+1) dimensions in an abelian gauge field background at finite…
Quantum radiation force on a moving mirror with Dirichlet and Neumann boundary conditions at vacuum, finite temperature and coherent states
Danilo T. Alves, Edney R. Granhen, Mateus G. Lima
We consider a real massless scalar field in a two-dimensional spacetime, satisfying Dirichlet or Neumann boundary condition at the instantaneous position of a moving boundary. For…
Vortex Condensation in the Dual Chern-Simons Higgs Model
Rudnei O. Ramos, J. F. Medeiros Neto
The contribution of nontrivial vacuum (topological) excitations, more specifically vortex configurations of the self-dual Chern-Simons-Higgs model, to the functional partition func…
Forward scattering amplitudes and the thermal operator representation
Fernando T. Brandt, Ashok Das, Josif Frenkel +1
We develop systematically to all orders the forward scattering description for retarded amplitudes in field theories at zero temperature. Subsequently, through the application of t…
On The Influence of Two Parallel Plates on Atomic Levels
D. T. Alves, F. A. Barone, C. Farina +1
This paper is devoted to the study of the influence of two parallel plates on the atomic levels of a Hydrogen atom placed in the region between the plates. We treat two situations,…