Scientific Calendar Event



Starts 26 Aug 2014 17:30
Ends 26 Aug 2014 18:00
Central European Time
ICTP
Strada Costiera, 11 I - 34151 Trieste (Italy)
Abstract. We consider conformal field theories in 1+1 dimensions with W-algebra symmetries, deformed by a chemical potential \mu for the spin-three current. We show that the order \mu2 correction to the Re'nyi and entanglement entropies of a single interval in the deformed theory, on the infinite spatial line and at finite temperature, is universal. The correction is completely determined by the operator product expansion of two spin-three currents, and by the expectation values of the stress tensor, its descendants and its composites, evaluated on the n-sheeted Riemann surface branched along the interval. This explains the recently found agreement of the order \mu2 correction across distinct free field CFTs and higher spin black hole solutions holographically dual to CFTs with W-symmetry.