Schwarzian quantum mechanics as a Drinfeld-Sokolov reduction of BF theory
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Abstract We give an interpretation of the holographic correspondence between two-dimensional BF theory on the punctured disk with gauge group PSL(2, ℝ) and Schwarzian quantum mechanics in terms of a Drinfeld-Sokolov reduction. The latter, in turn, is equivalent to the presence of certain edge states imposing a first class constraint on the model. The constrained path integral localizes over exceptional Virasoro coadjoint orbits. The reduced theory is governed by the Schwarzian action functional generating a Hamiltonian S1-action on the orbits. The partition function is given by a sum over topological sectors (corresponding to the exceptional orbits), each of which is computed by a formal Duistermaat-Heckman integral.
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1994 ◽
Vol 05
(02)
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pp. 359-361
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1992 ◽
Vol 07
(16)
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pp. 3781-3806
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1991 ◽
Vol 06
(21)
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pp. 1953-1959
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1984 ◽
Vol 129
(1)
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pp. 201-210
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