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On irrelevant current-current deformations of two-dimensional CFTs
132:028 (Nordita East) ()
132:028 (Nordita East)
There has been plenty of recent interest in deformations of two-dimensional QFTs constructed from bilinears of conserved currents. On the one hand, these deformations are exactly solvable; on the other, they appear to lead to a new type of ultraviolet behaviour in QFT, and also have very interesting applications in holography. I will concentrate on the two best studied such deformations: the TTbar and JTbar deformation of two-dimensional CFTs, and discuss their similarities and differences in what regards the spectrum, various observables, and holography