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SUMMARY:Sašo Grozdanov (Univ. of Edinburgh)
DTSTART:20231204T100000Z
DTEND:20231204T110000Z
DTSTAMP:20260423T024829Z
UID:NKUA-HEP/3
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/NKUA-HEP/3/"
 >Pole-skipping in a large number of spacetime dimensions and the reconstru
 ction of QFT spectra</a>\nby Sašo Grozdanov (Univ. of Edinburgh) as part 
 of NKUA HEP Seminars\n\n\nAbstract\nThe holographic duality provides an ex
 plicit reduction of quantum field theory (QFT) calculations in the semicla
 ssical large-N limit to sets of “gravitational” differential equations
  whose analysis can reveal all details of the spectra of thermal QFT corre
 lators. I will discuss how\, in certain cases\, a complete reconstruction 
 of the spectrum and of the corresponding correlator is possible from only 
 the knowledge of an infinite\, discrete set of pole-skipping points (a “
 0/0” in the associated correlation function) traversed by a single (hydr
 odynamic) mode. The main step that will enable a unique reconstruction wil
 l be a series expansion of the problem in an inverse number of spacetime d
 imensions\, expanded around infinity. Conceptually\, this reduces the comp
 utation of a QFT correlator spectrum to performing a set of purely algebra
 ic manipulations.\n
LOCATION:https://researchseminars.org/talk/NKUA-HEP/3/
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