157 citations · 572 across the 9 of their papers we have counts for
9 papers
Dependence of the vacuum energy on spherically symmetric background fields
M. Bordag, M. Hellmund, K. Kirsten
The vacuum energy of a scalar field in a spherically symmetric background field is considered. Based on previous work [hep-th/9608070], the numerical procedure is refined further a…
The heat kernel coefficient for oblique boundary conditions
J. S. Dowker, K. Kirsten
We present a method for the calculation of the heat kernel coefficient of the heat operator trace for a partial differential operator of Laplace type on a compact Riemann…
Casimir energy in the MIT bag model
E. Elizalde, M. Bordag, K. Kirsten
The vacuum energies corresponding to massive Dirac fields with the boundary conditions of the MIT bag model are obtained. The calculations are done with the fields occupying the re…
Bose-Einstein condensation of atomic gases in a general harmonic oscillator
Klaus Kirsten, David J. Toms
We present an analysis of Bose-Einstein condensation for a system of non-interacting spin-0 particles in a harmonic oscillator confining potential trap. We discuss why a confined s…
Bose-Einstein condensation of atomic gases in a harmonic oscillator confining potential trap
Klaus Kirsten, David J. Toms
We present a model which predicts the temperature of Bose-Einstein condensation in atomic alkali gases and find excellent agreement with recent experimental observations. A system…
Spectral invariants for the Dirac equation on the d-Ball with various boundary conditions
J. S. Dowker, J. S. Apps, K. Kirsten +1
The mode properties for spectral and mixed boundary conditions for massless spin-half fields are derived for the --ball. The corresponding functional determinants and heat-kerne…