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35 papers · 2 filters
Linearized Form of the Generic Affine-Virasoro Action
J. de Boer, K. Clubok, M. B. Halpern
Halpern and Yamron have given a Lorentz, conformal, and Diff S-invariant world-sheet action for the generic irrational conformal field theory, but the action is highly non-line…
On the Cohomology of the Noncritical -string
E. Bergshoeff, J. de Boer, M. de Roo +1
We investigate the cohomology structure of a general noncritical -string. We do this by introducing a new basis in the Hilbert space in which the BRST operator splits into a `…
AB and Berry phases for a quantum cloud of charge
Y. Aharonov, S. Coleman, A. S. Goldhaber +5
We investigate the phase accumulated by a charged particle in an extended quantum state as it encircles one or more magnetic fluxons, each carrying half a flux unit. A simple, esse…
Hidden Gravity in Open-String Field Theory
W. Siegel
We clarify the nature of the graviton as a bound state in open-string field theory: The flat metric in the action appears as the vacuum value of an OPEN string field. The bound sta…
A Class of W-Algebras with Infinitely Generated Classical Limit
J. de Boer, L. Feher, A. Honecker
There is a relatively well understood class of deformable W-algebras, resulting from Drinfeld-Sokolov (DS) type reductions of Kac-Moody algebras, which are Poisson bracket algebras…
Coherent States in Null-Plane Q.E.D
Anuradha Misra
Light front field theories are known to have the usual infra-red divergences of the equal time theories, as wellas new `spurious' infra-red divergences. The formar kind of IR diver…