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SUMMARY:Nonlinearities and non-manifolds in holography
DTSTART;VALUE=DATE-TIME:20260617T071000Z
DTEND;VALUE=DATE-TIME:20260617T081000Z
DTSTAMP;VALUE=DATE-TIME:20260616T020800Z
UID:indico-event-29917@indico.ihep.ac.cn
DESCRIPTION:Speakers: Yan  Liu (Beihang University)\nI will talk about two
  aspects of holography. The first part concerns the late-time dynamics of 
 AdS black branes. I will explain why the usual picture of black hole ringd
 own as a linear superposition of quasinormal modes is incomplete. Due to t
 he interplay between nonlinear effects and horizon dissipation\, higher Fo
 urier sectors at late times are dominated by harmonics driven by the funda
 mental mode. These harmonics exhibit a universal cascade relation\, which 
 can be derived from relativistic viscous fluid dynamics. This identifies a
 n attractor solution governing the late-time relaxation of nonlinear dissi
 pative systems.\n\nThe second part focuses on holography on non-manifold s
 pacetimes. I will describe how such geometries can realize GHZ-type quantu
 m states and provide another route for counting black hole microstates. I 
 will also briefly discuss the properties of field theories defined on thes
 e non-manifold spaces\, namely holographic junctions.\n\nBiography：\nYan
  Liu did his undergraduate studies at USTC (2001-2005). After completing h
 is Ph.D. at ITP\, CAS in 2010\, he conducted postdoctoral research at the 
 Lorentz insitutute\, Leiden University (2010-2013) and later at IFT-UAM/CS
 IC in Spain (2013-2016). In 2016\, he joined Beihang University as a profe
 ssor. His research focuses on holographic duality\, black hole physics\, a
 nd quantum gravity.\nhttps://indico.ihep.ac.cn/event/29917/
LOCATION:B105 (CHEP)
URL:https://indico.ihep.ac.cn/event/29917/
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