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6 papers · 2 filters
Simplified Vacuum Energy Expressions for Radial Backgrounds and Domain Walls
Gerald Dunne, Klaus Kirsten
We extend our previous results of simplified expressions for functional determinants for radial Schrödinger operators to the computation of vacuum energy, or mass corrections, for…
Colliding branes and formation of spacetime singularities in string theory
Andreas Tziolas, Anzhong Wang, Zhong Chao Wu
Colliding branes without symmetry and the formation of spacetime singularities in string theory are studied. After developing the general formulas to describe such events,…
Comment on: "The Casimir force on a piston in the spacetime with extra compactified dimensions" [Phys. Lett. B 668 (2008) 72]
S. A. Fulling, K. Kirsten
We offer a clarification of the significance of the indicated paper of H. Cheng. Cheng's conclusions about the attractive nature of Casimir forces between parallel plates are valid…
Elliptic aspects of statistical mechanics on spheres
J. S. Dowker, Klaus Kirsten
Our earlier results on the temperature inversion properties and the ellipticisation of the finite temperature internal energy on odd spheres are extended to orbifold factors of odd…
Vacuum Stress and Closed Paths in Rectangles, Pistons, and Pistols
S. A. Fulling, L. Kaplan, K. Kirsten +2
Rectangular cavities are solvable models that nevertheless touch on many of the controversial or mysterious aspects of the vacuum energy of quantum fields. This paper is a thorough…
Quasi-realistic heterotic-string models with vanishing one-loop cosmological constant and perturbatively broken supersymmetry?
Gerald B. Cleaver, Alon E. Faraggi, Elisa Manno +1
Quasi-realistic string models in the free fermionic formulation typically contain an anomalous U(1), which gives rise to a Fayet-Iliopoulos D-term that breaks supersymmetry at the…