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SUMMARY:New notions of entanglement and non-minimal geodesics from 2d CFT
DTSTART;VALUE=DATE-TIME:20170511T123000Z
DTEND;VALUE=DATE-TIME:20170511T140000Z
DTSTAMP;VALUE=DATE-TIME:20170822T053109Z
UID:indico-event-13503@cern.ch
DESCRIPTION:Description: The notion of “entwinement” originated in the
context of holography and was proposed to characterize the entanglement
between internal gauged degrees of freedom in a quantum field theory. I
will discuss how entwinement can formally be defined through the replica
method in terms of a non-local gauge-invariant object\, and apply this
method to the computation of entwinement in symmetric orbifold conformal
field theories in 1+1 dimensions. Such a theory appears in the weak
coupling limit of the D1-D5 string theory which is dual to AdS_3 at strong
coupling. In this context\, I will show how this novel quantity measures
the lengths\, in units of the AdS scale\, of non-minimal geodesics present
in excited states of the system\, which are gravitationally described as
conical defects and the zero mass BTZ black hole.\nURL:
https://agenda.infn.it/conferenceDisplay.py?confId=13503
LOCATION: Aula 281
URL:https://agenda.infn.it/conferenceDisplay.py?confId=13503
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