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UID:661@qft.physik.hu-berlin.de
DTSTART;TZID=Europe/Berlin:20151204T130000
DTEND;TZID=Europe/Berlin:20151204T140000
DTSTAMP:20151127T002429Z
URL:https://qft.physik.hu-berlin.de/next-seminars/edoardo-vescovi-humboldt
 -university-berlin/
SUMMARY:Edoardo Vescovi\, Humboldt University Berlin - 1/4-BPS Wilson loops
  in AdS5xS5: does sigma-model perturbation theory meet localization?
DESCRIPTION:We study the strong coupling behaviour of 1/4-BPS latitude Wils
 on loops in the N=4 SYM theory\, computing the one-loop corrections to the
  relevant classical string solution in AdS5xS5 in sigma-model perturbation
  theory. The approach is based on the application of the Gel'fand-Yaglom m
 ethod to compute the functional determinants for the fluctuations of the t
 ype IIB Green-Schwarz action expanded around the minimal-area surface. We 
 normalize the vev of the Wilson loops with respect to the 1/2-BPS circular
  case to circumvent the problem of determining the overall constant contri
 bution from the normalization of ghost zero modes. We find a discrepancy w
 ith the result obtained via localization in the gauge theory\, and we disc
 uss some issues that might be responsible for this outcome of the one-loop
  analysis.\n\n&nbsp\;
CATEGORIES:Research Seminars
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DTSTART:20151025T020000
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