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UID:c0c79911566990d865d48a34cc7347ff
CATEGORIES:Mathematical Physics Seminar
CREATED:20250617T070548
SUMMARY:Webinar: Slava Rychkov - Renormalization group computations with rigorous error bars at finite couplings.
LOCATION:Zoom
DESCRIPTION:<p style="text-align: center;"><strong>MATHEMATICAL PHYSICS WEBINAR<br>RUTG
 ERS UNIVERSITY</strong></p><p style="text-align: center;"><strong>_________
 _________________________________</strong></p><p style="text-align: center;
 "><strong>Slava Rychkov - IHES, Bures-sur-Yvette</strong></p><p style="text
 -align: center;"><strong>&nbsp;</strong></p><p style="text-align: center;">
 <strong>Wednesday,&nbsp;July 9th,&nbsp;2025</strong></p><p style="text-alig
 n: center;"><strong>Zoom opens: 10:30AM DST</strong></p><p style="text-alig
 n: center;"><strong>Seminar Begins: 10:45AM DST</strong></p><p style="text-
 align: center;"><strong>&nbsp;</strong></p><p><strong>&nbsp;</strong></p><p
 ><strong>&nbsp;</strong></p><p style="text-align: center;"><strong>Renormal
 ization group computations with rigorous error bars at finite couplings.</s
 trong></p><p style="text-align: center;"><strong>&nbsp;</strong></p><p>Reno
 rmalization group (RG) is an appealing framework to analyze phases of latti
 ce models. Many theorems were proved using this technique, but most of them
  apply below some unspecified small coupling epsilon.&nbsp; How can we comp
 ute if couplings are finite? Without truncation infinitely many couplings m
 ay be generated, how shall we control the error? In this talk I will presen
 t a robust method based on tensor network RG. The method uses tensor networ
 ks but it gives results about classical lattice 2D models such as Ising or 
 XY or their perturbations.</p><p>Based on arXiv:2506.03247 with Nikolay Ebe
 l and Tom Kennedy.</p>
CONTACT:Slava Rychkov
DTSTAMP:20260830T054051
DTSTART;TZID=America/New_York:20250709T104500
DTEND;TZID=America/New_York:20250709T120000
SEQUENCE:0
TRANSP:OPAQUE
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