An entropy current in superspace
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We provide a mechanism by which an entropy current can be constructed in a supersymmetric formulation of the low-energy effective action for the Schwinger-Keldysh generating functional. This mechanism allows us to define an entropy current quantum mechanically by coupling it to an external source. Such an entropy current is given by the bottom component of an entropy current superfield which is conserved in superspace, but when restricted to real space satisfies a non-conservation law. We demonstrate the validity of our mechanism in a probe limit which allows us to fully treat quantum fluctuations.
KeywordsEffective Field Theories Global Symmetries
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- L.D. Landau and E.M. Lifshitz, A course in theoretical physics — fluid mechanics, volume 6, Pergamon, U.K., (1987).Google Scholar