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Asymmetric cosets

Thomas Quella1,2 and Volker Schomerus2

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The aim of this work is to present a general theory of coset models G/H in which different left and right actions of H on G are gauged. Our main results include a formula for their modular invariant partition function, the construction of a large set of boundary states and a general description of the corresponding brane geometries. The paper concludes with some explicit applications to the base of the conifold and to the time-dependent Nappi-Witten background.


Keywords

Boundary Quantum Field Theory

Conformal and W Symmetry

D-branes

Conformal Field Models in String Theory

PACS

11.25.Uv D branes

11.15.-q Gauge field theories

11.10.Lm Nonlinear or nonlocal theories and models

11.25.Hf Conformal field theory, algebraic structures

11.30.Ly Other internal and higher symmetries

11.25.Sq Nonperturbative techniques; string field theory

Subjects

Particle physics and field theory

Dates

Issue 02 (February 2003)

Received 28 January 2003, accepted for publication 18 February 2003

Published 10 March 2003



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