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SUMMARY:Entanglement entropy and negativity in quantum field theories. - P
 asquale Calabrese (Pisa University)
DTSTART:20130612T131500Z
DTEND:20130612T141500Z
UID:TALK45709@talks.cam.ac.uk
CONTACT:Dr Dorigoni
DESCRIPTION:The study of the entanglement content of many body quantum sys
 tems has prompted an intense research activity at the crossroad of differe
 nt disciplines such as statistical mechanics\, quantum information\, conde
 nsed matter\, and quantum field theory. The quantification of the entangle
 ment allowed a novel and finer characterization of many extended quantum s
 ystems. In this talk I will present systematic methods to calculate the en
 tanglement entropy and negativity in the ground state of 1+1 dimensional q
 uantum field theories\, with particular emphasis on conformal invariant on
 es. I will show how to apply these powerful tools to the calculation of th
 e entanglement of a single interval\, and the generalization to different 
 situations such as the case of several disjoint intervals.
LOCATION:MR2\, Centre for Mathematical Sciences
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