BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Center for Field Theory and Particle Physics - ECPv6.15.17.1//NONSGML v1.0//EN
CALSCALE:GREGORIAN
METHOD:PUBLISH
X-WR-CALNAME:Center for Field Theory and Particle Physics
X-ORIGINAL-URL:https://fudanphystheory.com
X-WR-CALDESC:Events for Center for Field Theory and Particle Physics
REFRESH-INTERVAL;VALUE=DURATION:PT1H
X-Robots-Tag:noindex
X-PUBLISHED-TTL:PT1H
BEGIN:VTIMEZONE
TZID:Asia/Shanghai
BEGIN:STANDARD
TZOFFSETFROM:+0800
TZOFFSETTO:+0800
TZNAME:CST
DTSTART:20190101T000000
END:STANDARD
END:VTIMEZONE
BEGIN:VEVENT
DTSTART;TZID=Asia/Shanghai:20201223T150000
DTEND;TZID=Asia/Shanghai:20201223T170000
DTSTAMP:20260427T192155
CREATED:20201203T072721Z
LAST-MODIFIED:20201203T072740Z
UID:3211-1608735600-1608742800@fudanphystheory.com
SUMMARY:Zhihao Duan (KIAS)
DESCRIPTION:
URL:https://fudanphystheory.com/seminar/zhihao-duan-kias/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Asia/Shanghai:20201216T150000
DTEND;TZID=Asia/Shanghai:20201216T170000
DTSTAMP:20260427T192155
CREATED:20201203T072622Z
LAST-MODIFIED:20201203T072639Z
UID:3209-1608130800-1608138000@fudanphystheory.com
SUMMARY:Yasunori Lee (University of Tokyo)
DESCRIPTION:Revisiting Wess-Zumino-Witten terms\nYasunori Lee (University of Tokyo)\n\n\n\n\nAbstract: We revisit various topological issues concerning 4d Wess-Zumino-Witten terms for SU and SO QCD\, from the modern bordism point of view. We explain why the definition of the 4d WZW terms requires the spin structure\, and also discuss how the mixed anomaly involving the 1-form symmetry of SO QCD is reproduced in the low-energy sigma model.
URL:https://fudanphystheory.com/seminar/yasunori-lee-university-of-tokyo/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Asia/Shanghai:20201209T150000
DTEND;TZID=Asia/Shanghai:20201209T170000
DTSTAMP:20260427T192155
CREATED:20201203T072551Z
LAST-MODIFIED:20201203T072551Z
UID:3206-1607526000-1607533200@fudanphystheory.com
SUMMARY:Sunghyuk Park (Caltech)
DESCRIPTION:3-manifolds\, q-series\, and topological strings\nSunghyuk Park (Caltech)\n\n\n\n\nAbstract: Z-hat\, also known as the homological block\, is an invariant of 3-manifolds valued in BPS q-series introduced by Gukov\, Putrov and Vafa in their study of 3d N=2 theory T[M3]. In this talk\, I will give a gentle introduction to Z-hat\, highlighting some recent developments including the use of R-matrix for Verma modules\, generalization to higher rank\, the large N-limit and interpretation as open topological string partition functions.
URL:https://fudanphystheory.com/seminar/sunghyuk-park-caltech/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Asia/Shanghai:20201125T150000
DTEND;TZID=Asia/Shanghai:20201125T170000
DTSTAMP:20260427T192155
CREATED:20200930T063847Z
LAST-MODIFIED:20200930T092950Z
UID:3031-1606316400-1606323600@fudanphystheory.com
SUMMARY:Hiroshi Iritani (Kyoto University)
DESCRIPTION:https://us02web.zoom.us/j/9383671691?pwd=cUdMak5La1Q4d214TVZUQXhLaU5yQT09
URL:https://fudanphystheory.com/seminar/hiroshi-iritani-kyoto-university/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Asia/Shanghai:20201111T150000
DTEND;TZID=Asia/Shanghai:20201111T170000
DTSTAMP:20260427T192155
CREATED:20200930T063730Z
LAST-MODIFIED:20200930T093005Z
UID:3029-1605106800-1605114000@fudanphystheory.com
SUMMARY:Ofer Aharony (Weizmann Institute)
DESCRIPTION:https://us02web.zoom.us/j/9383671691?pwd=cUdMak5La1Q4d214TVZUQXhLaU5yQT09
URL:https://fudanphystheory.com/seminar/ofer-aharony-weizmann-institute/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Asia/Shanghai:20201104T080000
DTEND;TZID=Asia/Shanghai:20201104T170000
DTSTAMP:20260427T192155
CREATED:20200930T063701Z
LAST-MODIFIED:20200930T092811Z
UID:3027-1604476800-1604509200@fudanphystheory.com
SUMMARY:Kwok Wai Chan (Chinese University of Hong Kong)
DESCRIPTION:https://us02web.zoom.us/j/9383671691?pwd=cUdMak5La1Q4d214TVZUQXhLaU5yQT09
URL:https://fudanphystheory.com/seminar/kwok-wai-chan-chinese-university-of-hong-kong/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Asia/Shanghai:20201028T150000
DTEND;TZID=Asia/Shanghai:20201028T170000
DTSTAMP:20260427T192155
CREATED:20200930T063452Z
LAST-MODIFIED:20200930T092747Z
UID:3025-1603897200-1603904400@fudanphystheory.com
SUMMARY:Kohei Iwaki (University of Tokyo)
DESCRIPTION:https://us02web.zoom.us/j/9383671691?pwd=cUdMak5La1Q4d214TVZUQXhLaU5yQT09
URL:https://fudanphystheory.com/seminar/kohei-iwaki-university-of-tokyo/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Asia/Shanghai:20201021T150000
DTEND;TZID=Asia/Shanghai:20201021T170000
DTSTAMP:20260427T192155
CREATED:20200930T063410Z
LAST-MODIFIED:20200930T092721Z
UID:3023-1603292400-1603299600@fudanphystheory.com
SUMMARY:Johanna Knapp (University of Melbourne)
DESCRIPTION:https://us02web.zoom.us/j/9383671691?pwd=cUdMak5La1Q4d214TVZUQXhLaU5yQT09
URL:https://fudanphystheory.com/seminar/johanna-knapp-university-of-melbourne/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Asia/Shanghai:20201014T150000
DTEND;TZID=Asia/Shanghai:20201014T170000
DTSTAMP:20260427T192155
CREATED:20200930T063326Z
LAST-MODIFIED:20200930T092659Z
UID:3021-1602687600-1602694800@fudanphystheory.com
SUMMARY:Xin Wang (KIAS)
DESCRIPTION:https://us02web.zoom.us/j/9383671691?pwd=cUdMak5La1Q4d214TVZUQXhLaU5yQT09
URL:https://fudanphystheory.com/seminar/xin-wang-kias/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Asia/Shanghai:20201007T150000
DTEND;TZID=Asia/Shanghai:20201007T170000
DTSTAMP:20260427T192155
CREATED:20200930T063236Z
LAST-MODIFIED:20200930T092610Z
UID:3019-1602082800-1602090000@fudanphystheory.com
SUMMARY:Babak Haghighat (Yau Center\, Tsinghua)
DESCRIPTION:https://us02web.zoom.us/j/9383671691?pwd=cUdMak5La1Q4d214TVZUQXhLaU5yQT09
URL:https://fudanphystheory.com/seminar/babak-haghighat-yau-center-tsinghua/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Asia/Shanghai:20200930T150000
DTEND;TZID=Asia/Shanghai:20200930T170000
DTSTAMP:20260427T192155
CREATED:20200930T063146Z
LAST-MODIFIED:20200930T063159Z
UID:3016-1601478000-1601485200@fudanphystheory.com
SUMMARY:Yuya Tanizaki (Kyoto University)
DESCRIPTION:Topological aspects of oblique confinement in the Cardy-Rabinovici mode\n\n\nYuya Tanizaki (Kyoto University)\n\nhttps://us02web.zoom.us/j/9383671691\n\n\n\nAbstract: Confinement is one of the most important but basic features of non-Abelian gauge theories\, and an intuitive and interesting scenario of its dynamics is condensation of magnetic monopoles. When we add the topological theta term to it\, more exotic condensations may appear\, which are called oblique confinement phases. In a 4d lattice model proposed by Cardy and Rabinovici\, such interesting phases can be explicitly realized. In this talk\, I will uncover its topological nature based on the recent applications of ‘t Hooft anomaly matching. Moreover\, it has been known that the local dynamics of Cardy-Rabinovici model shows the SL(2\,Z) self-duality\, but it turns out that the self-duality does not extend to the global aspect of the original theory. We cooked up a SL(2\,Z) self-dual theory by gauging a part of the 1-form symmetry of the Cardy-Rabinovici model\, and the self-duality has a mixed gravitational anomaly. These data give useful constraints to discuss the phase diagram.
URL:https://fudanphystheory.com/seminar/yuya-tanizaki-kyoto-university/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Asia/Shanghai:20200902T150000
DTEND;TZID=Asia/Shanghai:20200902T170000
DTSTAMP:20260427T192155
CREATED:20200722T095902Z
LAST-MODIFIED:20200722T100025Z
UID:2868-1599058800-1599066000@fudanphystheory.com
SUMMARY:Noppadol Mekareeya
DESCRIPTION:Zoom seminar: https://us02web.zoom.us/j/9383671691\nTime: 4pm(Japan/Korea)\, 3pm(China)\, 12:30pm(India)\, 10am(Israel/Moscow)\, 9am(Berlin/Paris)\n\nTitle: TBA
URL:https://fudanphystheory.com/seminar/noppadol-mekareeya/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Asia/Shanghai:20200826T150000
DTEND;TZID=Asia/Shanghai:20200826T170000
DTSTAMP:20260427T192155
CREATED:20200722T095838Z
LAST-MODIFIED:20200722T095940Z
UID:2866-1598454000-1598461200@fudanphystheory.com
SUMMARY:Matteo Sacchi
DESCRIPTION:Zoom seminar: https://us02web.zoom.us/j/9383671691\nTime: 4pm(Japan/Korea)\, 3pm(China)\, 12:30pm(India)\, 10am(Israel/Moscow)\, 9am(Berlin/Paris)\n\nTitle: TBA
URL:https://fudanphystheory.com/seminar/matteo-sacchi/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Asia/Shanghai:20200812T150000
DTEND;TZID=Asia/Shanghai:20200812T170000
DTSTAMP:20260427T192155
CREATED:20200722T095810Z
LAST-MODIFIED:20200722T100144Z
UID:2864-1597244400-1597251600@fudanphystheory.com
SUMMARY:Dongmin Gang
DESCRIPTION:Zoom seminar: https://us02web.zoom.us/j/9383671691\nTime: 4pm(Japan/Korea)\, 3pm(China)\, 12:30pm(India)\, 10am(Israel/Moscow)\, 9am(Berlin/Paris)\n\nTitle: TBA
URL:https://fudanphystheory.com/seminar/dongmin-gang/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Asia/Shanghai:20200805T150000
DTEND;TZID=Asia/Shanghai:20200805T170000
DTSTAMP:20260427T192155
CREATED:20200722T095741Z
LAST-MODIFIED:20200805T111322Z
UID:2862-1596639600-1596646800@fudanphystheory.com
SUMMARY:Mauricio Romo
DESCRIPTION:Videos: Youtube\n\nZoom seminar: https://us02web.zoom.us/j/9383671691\nTime: 4pm(Japan/Korea)\, 3pm(China)\, 12:30pm(India)\, 10am(Israel/Moscow)\, 9am(Berlin/Paris)\n\n\nTitle: Exponential Networks: BPS quivers and enumerative invariants\n\nAbstract: I will present an introduction of the basics of exponential networks associated to CY 3-folds described by conic bundles. I will focus on how one can extract BPS quivers from degenerate networks at special points in the parameters and how to use a generalization of the nonabelianization map (as defined for spectral networks) to count 5d BPS states. This is based on joint work with S. Banerjee and P. Longhi.
URL:https://fudanphystheory.com/seminar/mauricio-romo/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Asia/Shanghai:20200730T210000
DTEND;TZID=Asia/Shanghai:20200730T220000
DTSTAMP:20260427T192155
CREATED:20200730T144426Z
LAST-MODIFIED:20200805T111155Z
UID:2895-1596142800-1596146400@fudanphystheory.com
SUMMARY:Hao-Zhi Zhang (SUSTECH)
DESCRIPTION:Slides: SET-f \nVideo: Youtube Bilibili \nZoom seminar: https://us02web.zoom.us/j/9383671691\nTime: 4pm(Japan/Korea)\, 3pm(China)\, 12:30pm(India)\, 10am(Israel/Moscow)\, 9am(Berlin/Paris)\n  \nSpeaker: Hao -Zhi Zhang (SUSTECH) \nTitle: Classification of SET orders with onsite symmetries\nAbstract: In this talk I will explain two different approaches towards the classifications of symmetry protected trivial (SPT) orders and symmetry enriched topological (SET) orders with unitary finite onsite symmetries in all dimensions. The first approach is based on the idea of gauging the symmetry. I will explain this idea for 2d SPT/SET orders in details. The second approach is based on the boundary-bulk relation. All the information of a SET order is contained in the bulk.
URL:https://fudanphystheory.com/seminar/hao-zhi-zhang-classification-of-set-orders-with-onsite-symmetries/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Asia/Shanghai:20200729T150000
DTEND;TZID=Asia/Shanghai:20200729T170000
DTSTAMP:20260427T192155
CREATED:20200630T090612Z
LAST-MODIFIED:20200805T111231Z
UID:2769-1596034800-1596042000@fudanphystheory.com
SUMMARY:Hee-Cheol Kim (Postech)
DESCRIPTION:Slides: Swampland\nVideos: Youtube Bilibili\n\n\nZoom seminar: https://us02web.zoom.us/j/9383671691\nTime: 4pm(Japan/Korea)\, 3pm(China)\, 12:30pm(India)\, 10am(Israel/Moscow)\, 9am(Berlin/Paris)\n\n\n\nTitle : Branes and the Swampland\n\nAbstract :\nI will talk about a novel idea on the Swampland program that uses consistency of what lives on the string probes in gravitational theories. The central charges and the levels of current algebras of 2d CFTs on these strings can be calculated by anomaly inflow mechanism and used to provide constraints on the supergravity theories based on unitarity of the worldsheet CFT. I will show some of the theories with 8 or 16 supersymmetries\, which are otherwise consistent looking\, belong to the Swampland.
URL:https://fudanphystheory.com/seminar/hee-cheol-kim-postech/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Asia/Shanghai:20200722T150000
DTEND;TZID=Asia/Shanghai:20200722T160000
DTSTAMP:20260427T192155
CREATED:20200501T032237Z
LAST-MODIFIED:20200610T045138Z
UID:2390-1595430000-1595433600@fudanphystheory.com
SUMMARY:Takahiro Nishinaka (Ritsumeikan)
DESCRIPTION:Zoom seminar: https://us02web.zoom.us/j/9383671691\nTime: 4pm(Japan/Korea)\, 3pm(China)\, 12:30pm(India)\, 10am(Israel/Moscow)\, 9am(Berlin/Paris)\n\n\nTitle: Argyres-Douglas theories\, S-duality and AGT correspondence \n\nAbstract: Argyres-Douglas (AD) CFTs are a series of 4d N=2 superconformal field theories with Coulomb branch operators of fractional scaling dimensions. Since they are strongly coupled\, it is hard to compute the partition function of AD CFTs and their cousins via the supersymmetric localization. In this talk\, I will discuss computing the partition function of gauge theories involving Argyres-Douglas CFTs in their matter sector\, using the generalized AGT correspondence as a tool. Our result is particularly consistent with the S-duality when the gauging is exactly marginal.
URL:https://fudanphystheory.com/seminar/takahiro-nishinaka-ritsumeikan/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Asia/Shanghai:20200715T150000
DTEND;TZID=Asia/Shanghai:20200715T160000
DTSTAMP:20260427T192155
CREATED:20200520T122153Z
LAST-MODIFIED:20200730T150856Z
UID:2519-1594825200-1594828800@fudanphystheory.com
SUMMARY:Aninda Sinha (IISc\, Bangalore)
DESCRIPTION:Video: Youtube\, Bilibili\n\nZoom seminar: https://us02web.zoom.us/j/9383671691\nTime: 4pm(Japan/Korea)\, 3pm(China)\, 12:30pm(India)\, 10am(Israel/Moscow)\, 9am(Berlin/Paris)\n\n\n\nTitle: Relative entropy in scattering and the S-matrix bootstrap\n\nAbstract: Abstract: I will talk about how relative entropy\, a concept in quantum information theory to distinguish two density matrices\, behaves in 2-2 scattering in quantum field theory\, string theory\, chiral perturbation theory and the numerical S-matrix bootstrap. In the context of massive quantum field theories\, I will derive high energy bounds on relative entropy as well as study the Regge behaviour. One application of such line of questioning will be a general explanation why the curvature of the Regge trajectory in massive quantum field theories must be positive. Then I will turn to the S-matrix bootstrap. I will give a broad overview of what this program is about and how to constrain pion scattering with it. Here\, some insight from relative entropy will prove to be handy to constrain the space of S-matrices. Finally I will discuss how hypothesis testing using relative entropy can prove useful to distinguish S-matrices in the space of allowed S-matrices.
URL:https://fudanphystheory.com/seminar/aninda-sinha-iisc-bangalore/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Asia/Shanghai:20200708T150000
DTEND;TZID=Asia/Shanghai:20200708T160000
DTSTAMP:20260427T192155
CREATED:20200529T050238Z
LAST-MODIFIED:20200730T150211Z
UID:2566-1594220400-1594224000@fudanphystheory.com
SUMMARY:Marcus Sperling (Yau Center\, Tsinghua)
DESCRIPTION:Slides: Magnetic-Quivers\nVideos: Youtube\, Bilibili\n\nZoom seminar: https://us02web.zoom.us/j/9383671691\nTime: 4pm(Japan/Korea)\, 3pm(China)\, 12:30pm(India)\, 10am(Israel/Moscow)\, 9am(Berlin/Paris)\n\n\nHiggs Branches\, Magnetic-Quivers\, and Hasse Diagrams \nAbstract:\nMagnetic quivers and Hasse diagrams have recently been developed to study gauge theories with 8  supercharges at UV fixed points. For a given low-energy gauge theory realised via a Type II brane construction\, there exist magnetic quivers for the Higgs branches at finite and infinite gauge coupling.\nComparing these moduli spaces allows to study the non-perturbative effects when transitioning to the fixed point.  For 5d N=1 SQCD\, 5-brane webs have been an important tool for deriving magnetic quivers.  In this talk\, the emphasis is placed on 5-brane webs with orientifold 5-planes which give rise to 5d  theories with orthogonal or symplectic gauge groups.  For this set-up\, I will exemplify the magnetic quiver prescription and contrast it against a unitary magnetic quiver description extracted from an O7 construction.  An important class of families considered are the orthogonal exceptional families\, realised as infinite coupling Higgs branches of Sp(k) gauge theories with fundamental matter.  For both classes of magnetic quivers\, I will discuss the associated Hasse diagrams for selected examples. Their agreement further validates the approach taken.
URL:https://fudanphystheory.com/seminar/marcus-sperling-yau-center-tsinghua/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Asia/Shanghai:20200701T150000
DTEND;TZID=Asia/Shanghai:20200701T170000
DTSTAMP:20260427T192155
CREATED:20200520T122015Z
LAST-MODIFIED:20200705T075406Z
UID:2515-1593615600-1593622800@fudanphystheory.com
SUMMARY:Sujay Ashok (IMSc\, Chennai)
DESCRIPTION:Slides: Surface Defects from Fractional Branes\nVideo: Youtube Bilibili\n\nZoom seminar: https://us02web.zoom.us/j/9383671691\nTime: 4pm(Japan/Korea)\, 3pm(China)\, 12:30pm(India)\, 10am(Israel/Moscow)\, 9am(Berlin/Paris)\n\nTitle: Surface Defects from Fractional Branes\n\nAbstract: We show that the Gukov-Witten monodromy defects of supersymmetric Yang-Mills theory can be realized in perturbative string theory by considering an orbifold background of the Kanno-Tachikawa type and placing stacks of fractional D3-branes whose world-volume partially extends along the orbifold directions. In particular\, we show that turning on a constant background value for some scalar fields in the closed string twisted sectors induces a non-trivial profile for the gauge field and one of the complex scalars of the world-volume theory\, and that this profile exactly matches the singular behavior that one expects for a Gukov-Witten surface defect in the N=4 supersymmetric gauge theory.
URL:https://fudanphystheory.com/seminar/sujay-ashok-surface-defects-from-fractional-branes/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Asia/Shanghai:20200624T210000
DTEND;TZID=Asia/Shanghai:20200624T220000
DTSTAMP:20260427T192155
CREATED:20200529T050101Z
LAST-MODIFIED:20200618T032551Z
UID:2564-1593032400-1593036000@fudanphystheory.com
SUMMARY:Saebyeok Jeong (Rutgers)
DESCRIPTION:Zoom seminar: https://us02web.zoom.us/j/9383671691\nTime: Different time from the usual!!!!  10pm(Japan/Korea)\, 9pm(China)\, 6:30pm(India)\, 4pm(Israel/Moscow)\, 3pm(Berlin/Paris)\n\n\nTitle: Opers\, isomonodromic deformations\, and surface defects.\n\nAbstract: One of interesting discoveries on the four-dimensional N=2 gauge theories is their role in the quantum/classical duality\, in which a problem in quantum regime translates to a classical one in the other. In particular\, the problem of quantizing the Hitchin integrable system is related to the problem of holomorphic symplectic geometry of the moduli space of flat connections on Riemann surfaces and its Lagrangian subvarieties. In this talk\, I will present how the N=2 gauge theories with half-BPS surface defects provide a physical understanding of such a duality. Also if time permits\, I will discuss another version of quantum/classical duality related to isomonodromic deformations of Fuchsian systems\, which could be understood in a similar field theoretical setting.
URL:https://fudanphystheory.com/seminar/saebyeok-jeong-rutgers/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Asia/Shanghai:20200622T210000
DTEND;TZID=Asia/Shanghai:20200622T220000
DTSTAMP:20260427T192155
CREATED:20200609T054556Z
LAST-MODIFIED:20200630T090312Z
UID:2650-1592859600-1592863200@fudanphystheory.com
SUMMARY:Alex Belin (CERN)
DESCRIPTION:Video: Youtube  Bilibili \nTitle: Gravitational path integral from the T2 deformation \nAbstract: We study a T2 deformation of large N conformal field theories\, a higher dimensional generalization of the TT¯ deformation. The deformed partition function satisfies a flow equation of the diffusion type. We solve this equation by finding its diffusion kernel\, which is given by the Euclidean gravitational path integral in d+1 dimensions between two boundaries with Dirichlet boundary conditions for the metric. This is natural given the connection between the flow equation and the Wheeler-DeWitt equation\, on which we offer a new perspective by giving a gauge-invariant relation between the deformed partition function and the radial WDW wave function. An interesting output of the flow equation is the gravitational path integral measure which is consistent with a constrained phase space quantization. Finally\, we comment on the relation between the radial wave function and the Hartle-Hawking wave functions dual to states in the CFT\, and propose a way of obtaining the volume of the maximal slice from the T2 deformation.
URL:https://fudanphystheory.com/seminar/alex-belin-cern/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Asia/Shanghai:20200617T150000
DTEND;TZID=Asia/Shanghai:20200617T160000
DTSTAMP:20260427T192155
CREATED:20200520T105041Z
LAST-MODIFIED:20200617T125253Z
UID:2513-1592406000-1592409600@fudanphystheory.com
SUMMARY:Shlomo Razamat (Technion\, Israel)
DESCRIPTION:Slides: SQCD and pairs of pants\nVideo: Youtube\, Bilibili\n\nZoom seminar: https://us02web.zoom.us/j/9383671691\nTime: 4pm(Japan/Korea)\, 3pm(China)\, 12:30pm(India)\, 10am(Israel/Moscow)\, 9am(Berlin/Paris)\n\nTitle: SQCD and pairs of pants\nAbstract: We will show that minimally supersymmetric SU(N+2) SQCD models in the middle of the conformal window can be engineered by compactifying certain 6d SCFTs on three punctured spheres. The geometric construction of the 4d theories predicts numerous interesting strong coupling effects\, such as IR symmetry enhancements and duality. We will discuss this interplay between simple geometric and group theoretic considerations and complicated field theoretic strong coupling phenomena. For example\, one of the dualities arising geometrically from different pair-of-pants decompositions of a four punctured sphere is an $SU(N+2)$ generalization of the Intriligator-Pouliot duality of $SU(2)$ SQCD with $N_f=4$\, which is a degenerate\, $N=0$\, instance of our discussion.
URL:https://fudanphystheory.com/seminar/shlomo-razamat-technion-israel/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Asia/Shanghai:20200610T150000
DTEND;TZID=Asia/Shanghai:20200610T150000
DTSTAMP:20260427T192155
CREATED:20200610T045225Z
LAST-MODIFIED:20200610T045225Z
UID:2662-1591801200-1591801200@fudanphystheory.com
SUMMARY:Cancel!!
DESCRIPTION:We have decided to postpone the seminar by Takahiro Nishinaka\, originally scheduled today\, to July 22. No seminar today! #STRIKE4BLACKLIVES #ShutDownSTEM\nhttps://www.particlesforjustice.org/?fbclid=IwAR2K8oiTdZFqc943yRlPqOHBJ28jpOOA3h5qi-niIZTsWSJ7n33Z6E2Vv7o
URL:https://fudanphystheory.com/seminar/cancel/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Asia/Shanghai:20200603T150000
DTEND;TZID=Asia/Shanghai:20200603T160000
DTSTAMP:20260427T192155
CREATED:20200429T164124Z
LAST-MODIFIED:20200603T131827Z
UID:2370-1591196400-1591200000@fudanphystheory.com
SUMMARY:Abhijit Gadde (TIFR\, Mumbai)
DESCRIPTION:Videos: Youtube Bilibili\n\nZoom seminar: https://us02web.zoom.us/j/9383671691\nTime: 4pm(Japan/Korea)\, 3pm(China)\, 12:30pm(India)\, 10am(Israel/Moscow)\, 9am(Berlin/Paris)\n\n  \nTitle: Modularity of supersymmetric partition functions \n\nAbstract: In this talk\, I will present a novel modular property of 4d N=1\nsupersymmetric partition functions of supersymmetric theories with\nR-symmetry. It is a generalization of the modular invariance of the\nsupersymmetric partition function of two-dimensional supersymmetric\ntheories on a torus i.e. of the elliptic genus. It comes from\nrequiring consistency of partition functions under gluing and\, among\nother things\, can be used to rederive the supersymmetric Cardy formula\nfor four-dimensional gauge theories that has played a key role in\ncomputing the entropy of supersymmetric black holes.
URL:https://fudanphystheory.com/seminar/abhijit-gadde-tifr-mumbai/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Asia/Shanghai:20200602T220000
DTEND;TZID=Asia/Shanghai:20200602T230000
DTSTAMP:20260427T192155
CREATED:20200531T111621Z
LAST-MODIFIED:20200603T131613Z
UID:2582-1591135200-1591138800@fudanphystheory.com
SUMMARY:Jie-qiang Wu (MIT)
DESCRIPTION:Slides: Jie-qiang-Wu \nVideos: Youtube Bilibili \n  \nZoom: https://us02web.zoom.us/j/9383671691 \nTitle: Peierls bracket and gravitational dressing in Jackiw-Teitelboim gravity \nAbstract: How to deal with diffeomorphism symmetries is one of the difficult problem in general relativity. Because of the diffeomorphism symmetries\, we need to consider diffeomorphism invariant operators and gravitational dressing. In this work\, we try to use Peierls bracket to study the commutator between the gravitational dressing operator and the ADM energy operator. Our result also strengthens the Marolf-Polchinski firewall argument. \nIn the talk\, I will first briefly review the Peierls bracket\, which is a linear response interpretation of bracket computation in covariant phase space formalism. We also illustrate the Peierls bracket with several examples. After that\, we use Peierls bracket to study the Hamiltonian flow of the gravitational dressing operator\, from which we can read out the commutator between the gravitational dressing operator with ADM energy operator.
URL:https://fudanphystheory.com/seminar/jie-qiang-wu-mit/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Asia/Shanghai:20200527T150000
DTEND;TZID=Asia/Shanghai:20200527T160000
DTSTAMP:20260427T192155
CREATED:20200501T055922Z
LAST-MODIFIED:20200529T070519Z
UID:2392-1590591600-1590595200@fudanphystheory.com
SUMMARY:Meer Ashwinkumar (National University of Singapore)
DESCRIPTION:Slides: Unifying Lattice Models\, Links and Quantum Geometric Langlands via Branes in String Theory\n\nZoom seminar: https://us02web.zoom.us/j/9383671691\nTime: 4pm(Japan/Korea)\, 3pm(China)\, 12:30pm(India)\, 10am(Israel/Moscow)\, 9am(Berlin/Paris)\n\n\nTitle:  Unifying Lattice Models\, Links and Quantum Geometric Langlands via Branes in String Theory\n\nAbstract: I will explain how\, starting with a stack of D4-branes ending on an NS5-brane in type IIA string theory\, one can\, via T-duality and the topological-holomorphic nature of the relevant worldvolume theories\, relate (i) the lattice models realized by Costello’s 4d Chern-Simons theory\, (ii) links in 3d analytically-continued Chern-Simons theory\, (iii) the quantum geometric Langlands correspondence realized by Kapustin-Witten using 4d N = 4 gauge theory and its quantum group modification\, and (iv) the Gaitsgory-Lurie conjecture relating quantum groups/affine Kac-Moody algebras to Whittaker D-modules/W-algebras. This furnishes\, purely physically via branes in string theory\, a novel bridge between the mathematics of integrable systems\, geometric topology\, geometric representation theory\, and quantum algebras.
URL:https://fudanphystheory.com/seminar/meng-chwan-tan-national-university-of-singapore/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Asia/Shanghai:20200520T150000
DTEND;TZID=Asia/Shanghai:20200520T160000
DTSTAMP:20260427T192155
CREATED:20200428T161849Z
LAST-MODIFIED:20200520T100617Z
UID:2349-1589986800-1589990400@fudanphystheory.com
SUMMARY:Futoshi Yagi (Southwest Jiaotong University)
DESCRIPTION:Slides: Complete porepotential for 5d N=1 SCFTs \nVideo: Youtube\, Bilibili \nZoom seminar: https://us02web.zoom.us/j/9383671691 \nTime: 4pm(Japan/Korea)\, 3pm(China)\, 12:30pm(India)\, 10am(Israel/Moscow)\, 9am(Berlin/Paris) \nTitle: Complete prepotential for 5d N = 1 superconformal field theories \nAbstract:\nIn general\, five dimensional (5d) supersymmetric gauge theory can be understood as a deformation of the superconformal field theory (SCFT) realized at the ultraviolet fixed point. The deformation parameters are interpreted as the masses and the gauge coupling constants of the gauge theory. However\, from the viewpoint of the SCFT\, it is natural to extend the parameter region to the place where the original gauge theory description is not valid anymore. For example\, we can consider the parameter region where the square of the gauge coupling constant becomes negative. If we choose such parameter region\, the theory may flow to a different gauge theory or may flows to a non-Lagrangian theory at the infrared.\nWe propose the “complete” prepotential for 5d N=1 SCFT\, which is valid for the whole parameter region. The complete prepotential is constructed in such a way that it respects the global symmetry of the SCFT and that it reduces to the perturbative prepotential found by Intriligator\, Morrison and Seiberg in the parameter region where the gauge theory description is valid. The (p\,q) 5-brane web diagram plays an important role to understand the complete prepotential.
URL:https://fudanphystheory.com/seminar/futoshi-yagi-southwest-jiaotong-university/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Asia/Shanghai:20200513T150000
DTEND;TZID=Asia/Shanghai:20200513T160000
DTSTAMP:20260427T192155
CREATED:20200428T105725Z
LAST-MODIFIED:20200513T085331Z
UID:2343-1589382000-1589385600@fudanphystheory.com
SUMMARY:June Nahmgoong (KIAS)
DESCRIPTION:Video: Youtube Bilibli \nSlides: 6d Cardy formulas \nZoom seminar: https://us02web.zoom.us/j/9383671691 \nTime: 4pm(Japan/Korea)\, 3pm(China)\, 12:30pm(India)\, 10am(Israel/Moscow)\, 9am(Berlin/Paris) \nTitle: 6d Cardy formulas\n\nAbstract: In this talk\, I will discuss the supersymmetric partition functions of 6d SCFTs on R^4 X T^2 and S^5 X S^1 by focusing on their Cardy limit asymptotics. For a 6d SCFT on N M5-branes\, the Cardy free energy is proportional to N^3\, and it accounts for the Bekenstein-Hawking entropy of large BPS black holes in AdS_7 X S^4. In particular\, I will explain the two different approaches to obtain 6d Cardy formulas: the elliptic genus of self-dual strings and the ‘t Hooft anomalies.\n 
URL:https://fudanphystheory.com/seminar/june-nahmgoong-kias/
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