Discrete-Time Quantum Field Theory and the Deformed Super Virasoro Algebra
نویسنده
چکیده
The deformed Virasoro algebra plays a similar role for deformed conformal fields as the Virasoro algebra in the usual string and conformal field theories. We show that there exists a physical theory, the discrete-time QFT, in which framework the deformations of (super)Virasoro algebra constructed earlier on an abstract mathematical background emerge. Specifically, the deformed Virasoro and super Virasoro algebras appear, after Wick rotation, within an exact treatment of discrete-time free field models on a circle. The deformation parameter is eλ, where λ is the ratio of the discrete-timescale τ and the radius ρ of the compact space. PACS: 03.70
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