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DTSTART;TZID=America/New_York:20221004T093000
DTEND;TZID=America/New_York:20221004T110000
DTSTAMP:20260610T033850
CREATED:20240216T090303Z
LAST-MODIFIED:20240813T162619Z
UID:10002752-1664875800-1664881200@cmsa.fas.harvard.edu
SUMMARY:Holomorphic Twists and Confinement in N=1 SYM
DESCRIPTION:Quantum Matter Seminar \nSpeaker: Justin Kulp (Perimeter Institute) \nTitle: Holomorphic Twists and Confinement in N=1 SYM \nAbstract: Supersymmetric QFT’s are of long-standing interest for their high degree of solvability\, phenomenological implications\, and rich connections to mathematics. In my talk\, I will describe how the holomorphic twist isolates the protected quantities which give SUSY QFTs their potency by restricting to the cohomology of one supercharge. I will briefly introduce infinite dimensional symmetry algebras\, generalizing Virasoro and Kac-Moody symmetries\, which emerge. Finally\, I will explain a potential novel UV manifestation of confinement\, dubbed “holomorphic confinement\,” in the example of pure SU(N) super Yang-Mills. Based on arXiv:2207.14321 and 2 forthcoming works with Kasia Budzik\, Davide Gaiotto\, Brian Williams\, Jingxiang Wu\, and Matthew Yu.
URL:https://cmsa.fas.harvard.edu/event/qm_tba/
LOCATION:Virtual
CATEGORIES:Quantum Matter
ATTACH;FMTTYPE=image/png:https://cmsa.fas.harvard.edu/media/CMSA-QMMP-Seminar-10.04.22.png
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20221017T090000
DTEND;TZID=America/New_York:20221017T103000
DTSTAMP:20260610T033850
CREATED:20240215T104548Z
LAST-MODIFIED:20240229T101247Z
UID:10002745-1665997200-1666002600@cmsa.fas.harvard.edu
SUMMARY:Topological Wick Rotation and Holographic duality
DESCRIPTION:Quantum Matter Seminar \nSpeaker: Liang Kong (Sustech) \nTitle: Topological Wick Rotation and Holographic duality \nAbstract: I will explain a new type of holographic dualities between\nn+1D topological orders with a chosen boundary condition and nD\n(potentially gapless) quantum liquids. It is based on the idea of\ntopological Wick rotation\, a notion which was first used in\narXiv:1705.01087 and was named\, emphasized and generalized later in\narXiv:1905.04924. Examples of these holographic dualities include the\nduality between 2+1D toric code model and 1+1D Ising chain and its\nfinite-group generalizations (independently discovered by many\nothers); those between 2+1D topological orders and 1+1D rational\nconformal field theories; and those between n+1D finite gauge theories\nwith a gapped boundary and nD gapped quantum liquids. I will also\nbriefly discuss some generalizations of this holographic duality and\nits relation to AdS/CFT duality.
URL:https://cmsa.fas.harvard.edu/event/qm_101722/
LOCATION:Virtual
CATEGORIES:Quantum Matter
ATTACH;FMTTYPE=image/png:https://cmsa.fas.harvard.edu/media/CMSA-QMMP-Seminar-10.17.2022.png
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20221018T090000
DTEND;TZID=America/New_York:20221018T103000
DTSTAMP:20260610T033850
CREATED:20240215T104318Z
LAST-MODIFIED:20240229T093815Z
UID:10002744-1666083600-1666089000@cmsa.fas.harvard.edu
SUMMARY:On the six-dimensional origin of non-invertible symmetries
DESCRIPTION:Quantum Matter Seminar \nSpeaker: Michele Del Zotto (Uppsala University) \nTitle: On the six-dimensional origin of non-invertible symmetries \nAbstract: I will present a review about recent progress in charting non-invertible symmetries for four-dimensional quantum field theories that have a six-dimensional origin. These include in particular N=4 supersymmetric Yang-Mills theories\, and also a large class of N=2 supersymmetric theories which are conformal and do not have a conventional Lagrangian description (the so-called theories of “class S”). Among the main results\, I will explain criteria for identifying examples of systems with intrinsic and non-intrinsic non-invertible symmetries\, as well as explore their higher dimensional origin. This seminar is based on joint works with Vladimir Bashmakov\, Azeem Hasan\, and Justin Kaidi. \n 
URL:https://cmsa.fas.harvard.edu/event/qm_101822/
LOCATION:Virtual
CATEGORIES:Quantum Matter
ATTACH;FMTTYPE=image/png:https://cmsa.fas.harvard.edu/media/CMSA-QMMP-Seminar-10.18.22.png
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20221024T090000
DTEND;TZID=America/New_York:20221024T103000
DTSTAMP:20260610T033850
CREATED:20240214T114116Z
LAST-MODIFIED:20240229T111301Z
UID:10002706-1666602000-1666607400@cmsa.fas.harvard.edu
SUMMARY:Insulating BECs and other surprises in dipole-conserving systems
DESCRIPTION:Quantum Matter Seminar \nSpeaker: Ethan Lake (MIT) \nTitle: Insulating BECs and other surprises in dipole-conserving systems \nAbstract: I will discuss recent work on bosonic models whose dynamics conserves both total charge and total dipole moment\, a situation which can be engineered in strongly tilted optical lattices. Related models have received significant attention recently for their interesting out-of-equilibrium dynamics\, but analytic and numeric studies reveal that they also possess rather unusual ground states. I will focus in particular on a dipole-conserving variant of the Bose-Hubbard model\, which realizes an unusual phase of matter that possesses a Bose-Einstein condensate\, but which is nevertheless insulating\, and has zero superfluid weight. Time permitting\, I will also describe the physics of a regime in which these models spontaneously fracture into an exotic type of glassy state. \n 
URL:https://cmsa.fas.harvard.edu/event/qm_102422/
LOCATION:Virtual
CATEGORIES:Quantum Matter
ATTACH;FMTTYPE=image/png:https://cmsa.fas.harvard.edu/media/CMSA-Quantum-Matter-in-Mathematics-and-Physics-10.24.22.png
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20221025T090000
DTEND;TZID=America/New_York:20221025T103000
DTSTAMP:20260610T033850
CREATED:20240215T102846Z
LAST-MODIFIED:20240229T092911Z
UID:10002741-1666688400-1666693800@cmsa.fas.harvard.edu
SUMMARY:Unorientable Quantum Field Theories: From crosscaps to holography
DESCRIPTION:Quantum Matter Seminar \nSpeaker: João Caetano (CERN) \nTitle: Unorientable Quantum Field Theories: From crosscaps to holography \nAbstract: In two dimensions\, one can study quantum field theories on unorientable manifolds by introducing crosscaps. This defines a class of states called crosscap states which share a few similarities with the notion of boundary states. In this talk\, I will show that integrable theories remain integrable in the presence of crosscaps\, and this allows to exactly determine the crosscap state. \n\n\nIn four dimensions\, the analog is to place the quantum field theory on the real projective space\, the simplest unorientable 4-manifold. I will show how to do this in the example of N=4 Supersymmetric Yang-Mills\, discuss its holographic description and present a new solvable setup of AdS/CFT.
URL:https://cmsa.fas.harvard.edu/event/qm_102522/
LOCATION:Virtual
CATEGORIES:Quantum Matter
ATTACH;FMTTYPE=image/png:https://cmsa.fas.harvard.edu/media/CMSA-QMMP-Seminar-10.25.22.png
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