Fwd: SP Seminar 08.03.2016 @SISSA: German Sierra

[Condensed Matter Section]

JOINT ICTP/SISSA STATISTICAL PHYSICS SEMINAR

Tuesday, 8th March - 11:00 am

venue:  SISSA, room 128


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Speaker: German Sierra

Title: Entanglement over the Rainbow

Abstract: In one dimension the area law for the entanglement entropy
is violated maximally by the ground state of a strong inhomogeneous
spin chain, the so called concentric singlet phase (CSP), that looks
like a rainbow connecting the two halves of the chain. We show that,
in the weak inhomogeneity limit, the rainbow state is a thermofield
double of a conformal field theory with a temperature proportional to
the inhomogeneity parameter. This result suggests some relation of the
CSP with black holes. Finally, we propose an extension of the model to
higher dimensions.