BEGIN:VCALENDAR
VERSION:2.0
PRODID:researchseminars.org
CALSCALE:GREGORIAN
X-WR-CALNAME:researchseminars.org
BEGIN:VEVENT
SUMMARY:Diptarka Das (IIT Kanpur)
DTSTART:20210507T093000Z
DTEND:20210507T110000Z
DTSTAMP:20260404T111324Z
UID:lethep/1
DESCRIPTION:Title: <a href="https://stable.researchseminars.org/talk/lethe
 p/1/">Some universal aspects in out-of-equilibrium physics (Lecture 1)</a>
 \nby Diptarka Das (IIT Kanpur) as part of LETHEP seminars\n\n\nAbstract\nA
 bstract : In these lectures we shall discuss universalities in non-equilib
 rium physics. A primary goal is to understand the late time fate of a clos
 ed quantum system subjected to out of equilibrium dynamics. Typically\, sy
 stems exhibit thermalization\, or at any rate some kind of equilibriation.
  To understand the fate is to identify the final ensemble that describes t
 he system at late times. The other closely tied goal is to understand the 
 mechanism that leads to the equilibriation. The physics becomes more inter
 esting in presence of $\\textit{chaos\, symmetry breakings}$ and $\\textit
 {critical points}$. We will touch upon these various issues\, while aiming
  to get some universal lessons in order to help build non-equilibrium intu
 ition.\n
LOCATION:https://stable.researchseminars.org/talk/lethep/1/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Diptarka Das (IIT Kanpur)
DTSTART:20210514T093000Z
DTEND:20210514T110000Z
DTSTAMP:20260404T111324Z
UID:lethep/2
DESCRIPTION:Title: <a href="https://stable.researchseminars.org/talk/lethe
 p/2/">Some universal aspects in out-of-equilibrium physics (Lecture 2)</a>
 \nby Diptarka Das (IIT Kanpur) as part of LETHEP seminars\n\n\nAbstract\nA
 bstract : In these lectures we shall discuss universalities in non-equilib
 rium physics. A primary goal is to understand the late time fate of a clos
 ed quantum system subjected to out of equilibrium dynamics. Typically\, sy
 stems exhibit thermalization\, or at any rate some kind of equilibriation.
  To understand the fate is to identify the final ensemble that describes t
 he system at late times. The other closely tied goal is to understand the 
 mechanism that leads to the equilibriation. The physics becomes more inter
 esting in presence of chaos\, symmetry breakings$ and critical points. We 
 will touch upon these various issues\, while aiming to get some universal 
 lessons in order to help build non-equilibrium intuition.\n
LOCATION:https://stable.researchseminars.org/talk/lethep/2/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Diptarka Das (IIT Kanpur)
DTSTART:20210521T093000Z
DTEND:20210521T110000Z
DTSTAMP:20260404T111324Z
UID:lethep/3
DESCRIPTION:Title: <a href="https://stable.researchseminars.org/talk/lethe
 p/3/">Some universal aspects in out-of-equilibrium physics (Lecture 3)</a>
 \nby Diptarka Das (IIT Kanpur) as part of LETHEP seminars\n\n\nAbstract\nA
 bstract : In these lectures we shall discuss universalities in non-equilib
 rium physics. A primary goal is to understand the late time fate of a clos
 ed quantum system subjected to out of equilibrium dynamics. Typically\, sy
 stems exhibit thermalization\, or at any rate some kind of equilibriation.
  To understand the fate is to identify the final ensemble that describes t
 he system at late times. The other closely tied goal is to understand the 
 mechanism that leads to the equilibriation. The physics becomes more inter
 esting in presence of $\\textit{chaos\, symmetry breakings}$ and $\\textit
 {critical points}$. We will touch upon these various issues\, while aiming
  to get some universal lessons in order to help build non-equilibrium intu
 ition.\n
LOCATION:https://stable.researchseminars.org/talk/lethep/3/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Diptarka Das (IIT Kanpur)
DTSTART:20210604T093000Z
DTEND:20210604T110000Z
DTSTAMP:20260404T111324Z
UID:lethep/4
DESCRIPTION:Title: <a href="https://stable.researchseminars.org/talk/lethe
 p/4/">Some universal aspects in out-of-equilibrium physics</a>\nby Diptark
 a Das (IIT Kanpur) as part of LETHEP seminars\n\nAbstract: TBA\n
LOCATION:https://stable.researchseminars.org/talk/lethep/4/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Lata Joshi (IQOQI Innsbruck)
DTSTART:20210611T093000Z
DTEND:20210611T110000Z
DTSTAMP:20260404T111324Z
UID:lethep/5
DESCRIPTION:Title: <a href="https://stable.researchseminars.org/talk/lethe
 p/5/">Quantum information scrambling</a>\nby Lata Joshi (IQOQI Innsbruck) 
 as part of LETHEP seminars\n\nAbstract: TBA\n
LOCATION:https://stable.researchseminars.org/talk/lethep/5/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Souvik Banerjee (Wurzburg University)
DTSTART:20210625T093000Z
DTEND:20210625T110000Z
DTSTAMP:20260404T111324Z
UID:lethep/6
DESCRIPTION:Title: <a href="https://stable.researchseminars.org/talk/lethe
 p/6/">Riding a dark bubble</a>\nby Souvik Banerjee (Wurzburg University) a
 s part of LETHEP seminars\n\nAbstract: TBA\n
LOCATION:https://stable.researchseminars.org/talk/lethep/6/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Chandramouli Chowdhury (ICTS Bengaluru)
DTSTART:20210902T093000Z
DTEND:20210902T110000Z
DTSTAMP:20260404T111324Z
UID:lethep/7
DESCRIPTION:Title: <a href="https://stable.researchseminars.org/talk/lethe
 p/7/">Introductory Lectures on Asymptotic symmetries-1</a>\nby Chandramoul
 i Chowdhury (ICTS Bengaluru) as part of LETHEP seminars\n\n\nAbstract\nIn 
 these lectures\, we will look at the subject of asymptotic symmetries and 
 first review the subject in the book "Lectures on the Infrared Structure o
 f Gravity and Gauge theories"\, by Andrew Strominger. We will first study 
 the Generalized Noether Theorem\, which will help us in analyzing the cons
 erved charges of Gauge Symmetries. We will apply this to QED and Gravity i
 n 4 dimensions and describe the abelian gauge symmetries in them. During t
 his discussion\, we will also introduce the Infrared Triangle and discuss 
 the idea of memory effect and soft theorem.\n\nHaving reviewed the basics\
 , we shall explore the story of Asymptotic symmetries in (even) higher dim
 ensions and discuss the issues one faces while trying to generalize the st
 ory in gravity. We will then propose a novel resolution to these issues us
 ing some very simple constructs.\n
LOCATION:https://stable.researchseminars.org/talk/lethep/7/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Chandramouli Chowdhury (ICTS Bengaluru)
DTSTART:20210903T093000Z
DTEND:20210903T110000Z
DTSTAMP:20260404T111324Z
UID:lethep/8
DESCRIPTION:Title: <a href="https://stable.researchseminars.org/talk/lethe
 p/8/">Introductory Lectures on Asymptotic symmetries-2</a>\nby Chandramoul
 i Chowdhury (ICTS Bengaluru) as part of LETHEP seminars\n\n\nAbstract\nIn 
 these lectures\, we will look at the subject of asymptotic symmetries and 
 first review the subject in the book "Lectures on the Infrared Structure o
 f Gravity and Gauge theories"\, by Andrew Strominger. We will first study 
 the Generalized Noether Theorem\, which will help us in analyzing the cons
 erved charges of Gauge Symmetries. We will apply this to QED and Gravity i
 n 4 dimensions and describe the abelian gauge symmetries in them. During t
 his discussion\, we will also introduce the Infrared Triangle and discuss 
 the idea of memory effect and soft theorem.\n\nHaving reviewed the basics\
 , we shall explore the story of Asymptotic symmetries in (even) higher dim
 ensions and discuss the issues one faces while trying to generalize the st
 ory in gravity. We will then propose a novel resolution to these issues us
 ing some very simple constructs.\n
LOCATION:https://stable.researchseminars.org/talk/lethep/8/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Siddharth Prabhu (ICTS Bengaluru)
DTSTART:20211001T093000Z
DTEND:20211001T110000Z
DTSTAMP:20260404T111324Z
UID:lethep/9
DESCRIPTION:Title: <a href="https://stable.researchseminars.org/talk/lethe
 p/9/">The holographic nature of quantum information storage in asymptotica
 lly flat spacetimes</a>\nby Siddharth Prabhu (ICTS Bengaluru) as part of L
 ETHEP seminars\n\n\nAbstract\nKnowledge of all observables on a Cauchy sur
 face enables us to determine these observables everywhere else in the spac
 etime. Thus any Cauchy surface can be deemed to be containing all informat
 ion. Here\, we argue that asymptotically flat spacetimes possess a hologra
 phic nature\, so that all this information is stored just on the boundary 
 of a Cauchy surface. Allowing for a few reasonable assumptions about the l
 ow energy structure of any complete theory of quantum gravity enables us t
 o find that an asymptotic observer who resides at the past boundary of fut
 ure null infinity has access to all the information about massless excitat
 ions. We also show that information available in any cut of future null in
 finity is also available in any later cut\, but the converse doesn't hold.
  Similar results hold for past null infinity. We will comment on several i
 nteresting and exciting questions that this line of investigation sheds li
 ght on\, including work in progress.\n
LOCATION:https://stable.researchseminars.org/talk/lethep/9/
END:VEVENT
END:VCALENDAR