Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2001-11-19
Phys.Lett.B533:146-152,2002
Physics
High Energy Physics
High Energy Physics - Theory
6pages, revtex, to be published in Physics Letters B
Scientific paper
10.1016/S0370-2693(02)01578-2
We present a prescription for constructing the monodromy matrix, $\hat{\cal M}(\omega)$, for $O(d,d)$ invariant string effective actions and derive its transformation properties under the $T$-duality group. This allows us to construct $\hat{\cal M}(\omega)$ for new backgrounds, starting from known ones, which are related by $T$-duality. As an application, we derive the monodromy matrix for the exactly solvable Nappi-Witten model, both when B=0 and $B\neq 0$.
Das Ashok
Maharana Jnan
Melikyan Armen
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