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SUMMARY:南部研究所大阪城セミナー（第４回）
DTSTART;VALUE=DATE-TIME:20260718T050000Z
DTEND;VALUE=DATE-TIME:20260718T090000Z
DTSTAMP;VALUE=DATE-TIME:20260625T101219Z
UID:indico-event-225@indico.nitep.omu.ac.jp
DESCRIPTION:日時：2026年7月18日（土）14:00〜18:00\n会場：大
 阪公立大学　森之宮キャンパス　中教室404\n講演者：川
 本　大志 氏（京都大学・白眉センター）\n題名：Statist
 ical Physics and Wormholes in AdS/CFT: Strong-to-Weak Spontaneous Symmetry
  Breaking and AdS Wormholes\n概要：\nRecently\, the notion of symmetry 
 has been extended to mixed states. In particular\, mixed-state symmetries 
 can be classified into two types: strong symmetries\, which act on individ
 ual pure states\, and weak symmetries\, which emerge only after averaging 
 over states. Interestingly\, strong symmetries can sometimes be spontaneou
 sly broken down to weak symmetries. This structure provides a powerful too
 l for understanding nonequilibrium phase transitions and hydrodynamics.\n
  Independently\, over the past decades\, wormholes have played an essenti
 al role in quantum gravity\, especially in developing a complete understan
 ding of the gravitational path integral. For example\, they have been prop
 osed as a possible resolution of the black hole information paradox. Howev
 er\, we still lack a complete and concrete understanding of such wormholes
 \, especially in higher dimensions\, since they often appear as off-shell 
 contributions or non-perturbative corrections.\n In this talk\, we explai
 n how statistical physics provides a useful tool for understanding wormhol
 e physics in a concrete manner. We discuss the holographic implications of
  strong-to-weak symmetry breaking. In particular\, we show that this pheno
 menon is closely related to the appearance of wormholes in AdS. We demonst
 rate this connection in a simple setup consisting of AdS gravity coupled t
 o a U(1) Chern–Simons theory\, and discuss that the strong-symmetry-brok
 en phase is described by wormholes that are not solutions of the Einstein 
 equations with the correct boundary conditions.\n This talk are mainly ba
 sed on upcoming work with Masahito Yamazaki(U. Tokyo) and Kenya Tasuki (YI
 TP) and related on-going argument.\n\nhttps://indico.nitep.osaka-cu.ac.jp/
 event/225/
LOCATION:大阪公立大学 森之宮キャンパス
URL:https://indico.nitep.osaka-cu.ac.jp/event/225/
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