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10 papers · 1 filter
Off-shell structure of the string sigma model
Alan Kostelecky, Malcolm Perry, Robertus Potting
The off-shell structure of the string sigma model is investigated. In the open bosonic string, nonperturbative effects are shown to depend crucially on the regularization scheme. A…
Quantum Radiation from Black Holes and Naked Singularities in Spherical Dust Collapse
T. P. Singh, Cenalo Vaz
A sufficiently massive collapsing star will end its life as a spacetime singularity. The nature of the Hawking radiation emitted during collapse depends critically on whether the s…
Free-Field Realization of D-dimensional Cylindrical Gravitational Waves
A. Mikovic, N. Manojlovic
We find two-dimensional free-field variables for D-dimensional general relativity on spacetimes with D-2 commuting spacelike Killing vector fields and non-compact spatial sections…
Schlesinger transformations for elliptic isomonodromic deformations
D. Korotkin, N. Manojlovic, H. Samtleben
Schlesinger transformations are discrete monodromy preserving symmetry transformations of the classical Schlesinger system. Generalizing well-known results from the Riemann sphere…
The initial energy density of gluons produced in very high energy nuclear collisions
Alex Krasnitz, Raju Venugopalan
In very high energy nuclear collisions, the initial energy of produced gluons per unit area per unit rapidity, , is equal to , where is prop…
Sphaleron Transition Rate in Presence of Dynamical Fermions
A. Kovner, A. Krasnitz, R. Potting
We investigate the effect of dynamical fermions on the sphaleron transition rate at finite temperature for the Abelian Higgs model in one spatial dimension. The fermion degrees of…