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SUMMARY:Ali Hajiloi (Steklov Mathematical University\, RAS)
DTSTART:20221213T120000Z
DTEND:20221213T130000Z
DTSTAMP:20260423T041112Z
UID:FHD-4/6
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/FHD-4/6/">Me
 son Excitation Time as a Probe of Holographic Critical Point</a>\nby Ali H
 ajiloi (Steklov Mathematical University\, RAS) as part of Frontiers of Hol
 ographic Duality-4\n\n\nAbstract\nWe study the time evolution of expectati
 on value of Wilson loop as a non-local observable in\na strongly coupled  
 field theory with a critical point at finite temperature and nonzero chemi
 cal\npotential\, which is dual to an asymptotically AdS charged black hole
  via gauge/gravity duality.\nDue to inject of energy into the plasma\, the
  temperature and a chemical potential increase to finite\nvalues and the p
 lasma experiences an out-of-equilibrium process. By defining meson excitat
 ion time\nt_ex as a time at which the meson falls into the final excited s
 tate\, we investigate the behavior of t_ex near the critical point as the 
 system evolves towards the critical point. We obtain for slow\nquenches di
 fferent values of the dynamical critical exponent\, although for fast quen
 ches our result\nfor the dynamical critical exponent is in agreement with 
 the one that is reported for studying the\nquasi-normal modes. Consequentl
 y\, this indicates that in this model for fast quenches and small\nvalues 
 of interquark distances the gauge invariant Wilson loop is a good non-loca
 l observable to\nprobe the critical point.\n
LOCATION:https://researchseminars.org/talk/FHD-4/6/
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