منابع مشابه
Matrix String Theory and its Moduli Space
The correspondence between Matrix String Theory in the strong coupling limit and IIA superstring theory can be shown by means of the instanton solutions of the former. We construct the general instanton solutions of Matrix String Theory which interpolate between given initial and final string configurations. Each instanton is characterized by a Riemann surface of genus h with n punctures, which...
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We study matrix string scattering amplitudes and matrix string instantons on a marked Riemann surface in the limit of a vanishing string coupling constant. We give an explicit parameterization of the moduli space of such instantons. We also give a description of the set of fermionic supermoduli. The integration over the supermoduli leads to the inclusion of picture changing operators at the int...
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In this paper we study arbitrary W algebras related to embeddings of sl2 in a Lie algebra g. We will give a simple general formula for all W transformations, which will enable us to construct the covariant action for general W gravity. It turns out that this covariant action is nothing but a Fourier transform of the WZW action. The same general formula provides a ‘geometrical’ interpretation of...
متن کاملMatrix String Theory
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ژورنال
عنوان ژورنال: Nuclear Physics B
سال: 1999
ISSN: 0550-3213
DOI: 10.1016/s0550-3213(99)00271-0