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BEGIN:VEVENT
DTSTART;TZID=America/New_York:20230424T110000
DTEND;TZID=America/New_York:20230424T120000
DTSTAMP:20260507T131417
CREATED:20230730T191102Z
LAST-MODIFIED:20240215T101445Z
UID:10001162-1682334000-1682337600@cmsa.fas.harvard.edu
SUMMARY:The Tameness of Quantum Field Theories 
DESCRIPTION:Swampland Seminar \nSpeaker: Thomas Grimm (Utrecht U.)\n\nTitle: The Tameness of Quantum Field Theories \nAbstract: Tameness is a generalized notion of finiteness that is restricting the geometric complexity of sets and functions. The underlying mathematical foundation lies in tame geometry\, which is built from o-minimal structures introduced in mathematical logic. In this talk I formalize the connection between quantum field theories and logical structures and argue that the tameness of a quantum field theory relies on its UV definition. I quantify our expectations on the tameness of effective theories that can be coupled to quantum gravity and on CFTs. In particular\, I present tameness conjectures about CFT observables and propose universal constraints that render spaces of CFTs to be tame sets. I then highlight the relation of these conjectures to other swampland conjectures\, e.g.\, by arguing that the tameness of CFT observables restricts having parametrical gaps in the operator spectrum.
URL:https://cmsa.fas.harvard.edu/event/swampland_42423/
LOCATION:Jefferson 368
CATEGORIES:Swampland Seminar
ATTACH;FMTTYPE=image/png:https://cmsa.fas.harvard.edu/media/NTM-11.15.2023.png
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20230410T110000
DTEND;TZID=America/New_York:20230410T120000
DTSTAMP:20260507T131417
CREATED:20230730T190732Z
LAST-MODIFIED:20240215T101627Z
UID:10001161-1681124400-1681128000@cmsa.fas.harvard.edu
SUMMARY:Swampland bounds on the abelian gauge sectors
DESCRIPTION:Swampland Seminar \nSpeaker: Seung-Joo Lee (IBS Daejeon)\n\nTitle: Swampland bounds on the abelian gauge sectors \nAbstract: In this talk we will derive various bounds on the 0-form and the 1-form abelian gauge sectors of gravitational effective theories in 6 dimensions with minimal supersymmetry. We will start by considering 6-dimensional F-theory vacua with at least one tensor multiplets\, to bound for them the number of the (0-form) U(1) gauge factors as well as the cyclic orders of the 1-form discrete gauge factors. While the two abelian gauge sectors may look rather independent\, we will observe that both are heavily constrained by the solitonic heterotic strings present in the spectrum\, which provide a common intuition for the derived bounds. Building upon the heterotic intuition\, we will also try extending the arena to address analogous bounds for all F-theory vacua in 6 dimensions and even beyond. If time permits\, several applications and future directions of research will be discussed at the end of the talk.
URL:https://cmsa.fas.harvard.edu/event/swampland_41023/
LOCATION:CMSA Room G10\, CMSA\, 20 Garden Street\, Cambridge\, MA\, 02138\, United States
CATEGORIES:Swampland Seminar
ATTACH;FMTTYPE=image/png:https://cmsa.fas.harvard.edu/media/CMSA-Swampland-Seminar-04.10.23.png
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20230327T110000
DTEND;TZID=America/New_York:20230327T120000
DTSTAMP:20260507T131417
CREATED:20230730T190429Z
LAST-MODIFIED:20240215T101847Z
UID:10001160-1679914800-1679918400@cmsa.fas.harvard.edu
SUMMARY:Recent developments on the tidal Love numbers of black holes
DESCRIPTION:Swampland Seminar \nSpeaker: Valerio De Luca (UPenn)\n\nTitle: Recent developments on the tidal Love numbers of black holes \nAbstract: Tidal Love numbers describe the deformability of compact objects under the presence of external tidal perturbations\, and are found to be exactly zero for black holes in pure General Relativity. This property is however fragile\, since they receive corrections from higher-order derivative terms in the theory. We show that the tidal deformability of neutral black holes is constrained by the Weak Gravity Conjecture.
URL:https://cmsa.fas.harvard.edu/event/swampland_32723/
LOCATION:CMSA Room G10\, CMSA\, 20 Garden Street\, Cambridge\, MA\, 02138\, United States
CATEGORIES:Swampland Seminar
ATTACH;FMTTYPE=image/png:https://cmsa.fas.harvard.edu/media/CMSA-Swampland-Seminar-03.27.23.png
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20230313T110000
DTEND;TZID=America/New_York:20230313T120000
DTSTAMP:20260507T131417
CREATED:20230730T190045Z
LAST-MODIFIED:20240215T102017Z
UID:10001159-1678705200-1678708800@cmsa.fas.harvard.edu
SUMMARY:String theory scalar potentials and their critical points
DESCRIPTION:Swampland Seminar \n\nSpeaker: David Andriot (Annecy\, LAPTH) \nTitle: String theory scalar potentials and their critical points \nAbstract: Positive scalar potentials in string effective theories could provide an origin to Dark Energy\, responsible for the accelerated expansion of our universe today or during inflation. It is thus crucial to characterize these scalar potentials\, namely their slope\, their critical points (de Sitter solutions) and the associated stability\, as also advocated by the Swampland Program. We will present such characterizations. Going further\, we will also discuss negative scalar potentials\, and make related observations on anti-de Sitter solutions\, in particular on a new mass bound\, as well as comments on scale separation.
URL:https://cmsa.fas.harvard.edu/event/swampland_31323/
LOCATION:CMSA Room G10\, CMSA\, 20 Garden Street\, Cambridge\, MA\, 02138\, United States
CATEGORIES:Swampland Seminar
ATTACH;FMTTYPE=image/png:https://cmsa.fas.harvard.edu/media/CMSA-Swampland-Seminar-0.13.23.png
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20230213T110000
DTEND;TZID=America/New_York:20230213T120000
DTSTAMP:20260507T131417
CREATED:20230730T185547Z
LAST-MODIFIED:20240228T111605Z
UID:10001158-1676286000-1676289600@cmsa.fas.harvard.edu
SUMMARY:Parity and Cobordism
DESCRIPTION:Swampland Seminar \nSpeaker: Jake McNamara (Caltech)\n\nTitle: Parity and Cobordism\n\nAbstract: The swampland cobordism conjecture provides a convenient way to discuss conserved charges associated with the topology of spacetime. However\, much of the power of the cobordism conjecture comes from a mathematical black box: the Adams spectral sequence. In this talk\, I will give physical meaning to this black box through a concrete example: domain walls arising from the spontaneously breaking of parity symmetry\, which arise in particle physics in Nelson-Barr models. I will argue that parity domain walls are exactly stable\, and interpret this stability as the result of an unusual type of gauge symmetry that can only occur in gravitational theories.\n 
URL:https://cmsa.fas.harvard.edu/event/swampland_21323-2/
LOCATION:CMSA Room G10\, CMSA\, 20 Garden Street\, Cambridge\, MA\, 02138\, United States
CATEGORIES:Swampland Seminar
ATTACH;FMTTYPE=image/png:https://cmsa.fas.harvard.edu/media/CMSA-Topological-Seminar-11.15.23.png
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20230130T110000
DTEND;TZID=America/New_York:20230130T120000
DTSTAMP:20260507T131417
CREATED:20230730T185242Z
LAST-MODIFIED:20240110T051011Z
UID:10001157-1675076400-1675080000@cmsa.fas.harvard.edu
SUMMARY:Swampland program\, extra dimensions and supersymmetry breaking
DESCRIPTION:Swampland Seminar \nSpeaker: Ignatios Antoniadis (LPTHE Paris)\n\nTitle: Swampland program\, extra dimensions and supersymmetry breaking\n\nAbstract: I will argue on the possibility that the smallness of some physical parameters signal a universe corresponding to a large distance corner in the string landscape of vacua. Such parameters can be the scales of dark energy and supersymmetry breaking\, leading to a generalisation of the dark dimension proposal. I will discuss the theoretical framework and some of its main physical implications to particle physics and cosmology.
URL:https://cmsa.fas.harvard.edu/event/swampland_13023/
LOCATION:CMSA Room G10\, CMSA\, 20 Garden Street\, Cambridge\, MA\, 02138\, United States
CATEGORIES:Swampland Seminar
ATTACH;FMTTYPE=image/png:https://cmsa.fas.harvard.edu/media/CMSA-Swampland-Seminar-01.30.23.png
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20221205T110000
DTEND;TZID=America/New_York:20221205T120000
DTSTAMP:20260507T131417
CREATED:20230730T184816Z
LAST-MODIFIED:20240110T050720Z
UID:10001156-1670238000-1670241600@cmsa.fas.harvard.edu
SUMMARY:IIB Explored - Dualities\, Bordisms\, and the Swampland
DESCRIPTION:Swampland Seminar \nLocation: Jefferson Physical Laboratory\, Seminar room J356 \nSpeaker: Markus Dierigl (LMU Munich) \nTitle: IIB Explored – Dualities\, Bordisms\, and the Swampland \nAbstract: In this talk I will discuss the application of the Cobordism Conjecture to type IIB supergravity with non-trivial duality bundle. Calculating the relevant bordism groups we find that they are highly non-trivial and would predict the presence of various global symmetries in the underlying theory. Since quantum gravity theories do not allow for global symmetries\, we discuss which defects need to be included to break them completely. Interestingly\, we find many backgrounds that are well-known in the F-theory literature\, such as [p\,q]-7-branes\, non-Higgsable clusters\, as well as S-folds and their generalizations to higher codimensions. Further including worldsheet reflections\, predicts the existence of a new non-supersymmetric 7-brane with interesting properties and applications\, which I will discuss in more detail.
URL:https://cmsa.fas.harvard.edu/event/swampland_12522/
LOCATION:Jefferson 356
CATEGORIES:Swampland Seminar
ATTACH;FMTTYPE=image/png:https://cmsa.fas.harvard.edu/media/CMSA-Topological-Seminar-11.09.23.png
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20221115T110000
DTEND;TZID=America/New_York:20221115T120000
DTSTAMP:20260507T131417
CREATED:20230730T184327Z
LAST-MODIFIED:20240228T111805Z
UID:10001155-1668510000-1668513600@cmsa.fas.harvard.edu
SUMMARY:The Emergence Proposal in Quantum Gravity and the Species Scale
DESCRIPTION:Swampland Seminar \nSpeaker: Alvaro Herraez (Saclay) \nTitle: The Emergence Proposal in Quantum Gravity and the Species Scale \nAbstract: The Emergence Proposal claims that in Quantum Gravity the kinetic terms of the fields in the IR emerge from integrating out (infinite) towers of particles up to the QG cutoff. After introducing this proposal in the context of the Swampland Program\, I will explain why it is natural to identify this QG cutoff with the Species Scale\, motivating it by direct computation in the presence of the relevant towers. Then\, I will present evidence for this proposal by directly studying how it is realized in different string theory setups\, where the kinetic terms of scalars\, p-forms and even scalar potentials can be shown to emerge after integrating out such towers. \n  \n 
URL:https://cmsa.fas.harvard.edu/event/swampland_111522/
LOCATION:CMSA Room G10\, CMSA\, 20 Garden Street\, Cambridge\, MA\, 02138\, United States
CATEGORIES:Swampland Seminar
ATTACH;FMTTYPE=image/png:https://cmsa.fas.harvard.edu/media/CMSA-Swampland-Seminar-11.15.22.png
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20221107T110000
DTEND;TZID=America/New_York:20221107T120000
DTSTAMP:20260507T131417
CREATED:20230730T183933Z
LAST-MODIFIED:20240228T112123Z
UID:10001154-1667818800-1667822400@cmsa.fas.harvard.edu
SUMMARY:EFT strings and emergence
DESCRIPTION:Swampland Seminar \nSpeaker: Fernando Marchesano (IFT Madrid) \nTitle: EFT strings and emergence \nAbstract: We revisit the Emergence Proposal in 4d N=2 vector multiplet sectors that arise from  type II string Calabi-Yau compactifications\, with emphasis on the role of axionic fundamental strings\, or EFT strings. We focus on large-volume type IIA compactifications\, where EFT strings arise from NS5-branes wrapping internal four-cycles\, and consider a set of infinite-distance moduli-space limits that can be classified in terms of a scaling weight w=1\,2\,3. It has been shown before how one-loop threshold effects of an infinite tower of BPS particles made up of D2/D0-branes generate the asymptotic behaviour of  the gauge kinetic functions along limits with $w=3$. We extend this result to w=2 limits\, by taking into account D2-brane multi-wrapping numbers. In w=1 limits the leading tower involves EFT string oscillations\, and one can reproduce the behaviour of both weakly and strongly-coupled U(1)’s independently on whether the EFT string is critical or not\, by assuming that charged modes dominate the light spectrum.
URL:https://cmsa.fas.harvard.edu/event/swampland_102422-2/
LOCATION:CMSA Room G10\, CMSA\, 20 Garden Street\, Cambridge\, MA\, 02138\, United States
CATEGORIES:Swampland Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20221024T110000
DTEND;TZID=America/New_York:20221024T120000
DTSTAMP:20260507T131417
CREATED:20230730T183559Z
LAST-MODIFIED:20240110T045511Z
UID:10001153-1666609200-1666612800@cmsa.fas.harvard.edu
SUMMARY:Anomalies of Discrete Gauge Symmetries and their Cancellation in 6D F-theory
DESCRIPTION:Swampland Seminar \nSpeaker: Paul-Konstantin Oehlmann(Northeastern) \nTitle: Anomalies of Discrete Gauge Symmetries and their Cancellation in 6D F-theory \nAbstract: We consider 6D SUGRAs with a discrete gauge group G\, engineered via F-theory compactifications on genus-one fibered threefolds. We argue that group G suffers from Dai-Freed anomalies that can be canceled via a discrete Green-Schwarz mechanism. We comment on the ambiguity to assign this GS term in the 7D Anomaly theory which leads to choices that are not all compatible with F-theory. \nIn F-theory we then deduce this Anomaly coefficient explicitly by computing the elliptic genera of the non-critical strings that couple to the 6D two-form fields: Their 2D worldsheet theories inherits a G Flavor symmetries whose t’Hooft anomaly cancels the 6D Dai-Freed anomaly in the bulk via inflow. This talk is based on work in preparation together with Markus Dierigl and Thorsten Schimmanek.
URL:https://cmsa.fas.harvard.edu/event/swampland_102422/
LOCATION:CMSA Room G10\, CMSA\, 20 Garden Street\, Cambridge\, MA\, 02138\, United States
CATEGORIES:Swampland Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20221011T110000
DTEND;TZID=America/New_York:20221011T120000
DTSTAMP:20260507T131417
CREATED:20230730T183036Z
LAST-MODIFIED:20240215T091450Z
UID:10001152-1665486000-1665489600@cmsa.fas.harvard.edu
SUMMARY:The Penrose Inequality as a Constraint on Low Energy Quantum Gravity
DESCRIPTION:Swampland Seminar\n\nSpeaker: Aasmund Folkestad (MIT)\n\n\nTitle: The Penrose Inequality as a Constraint on Low Energy Quantum Gravity\n\nAbstract: In this talk\, I argue that the Penrose inequality (PI) can be used to constrain low energy theories compatible AdS/CFT\, and possibly also quantum gravity in flat space. Focusing on AdS/CFT\, it is shown that the PI can be violated for minimally coupled scalar fields\, and I produce exclusion plots on couplings that respect the PI. I also present numerical evidence that top-down scalar theories and supersymmetric theories respect the PI. Finally\, similar to the Breitenlohner-Freedman bound\, I give a necessary condition for the stability AdS that constrains coupling constants (beyond the scalar mass).
URL:https://cmsa.fas.harvard.edu/event/swampland_101122/
LOCATION:CMSA Room G10\, CMSA\, 20 Garden Street\, Cambridge\, MA\, 02138\, United States
CATEGORIES:Swampland Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20220919T110000
DTEND;TZID=America/New_York:20220919T120000
DTSTAMP:20260507T131417
CREATED:20230730T182302Z
LAST-MODIFIED:20240229T103619Z
UID:10001151-1663585200-1663588800@cmsa.fas.harvard.edu
SUMMARY:The story of the information paradox
DESCRIPTION:Swampland Seminar\n\nSpeaker: Samir Mathur (Ohio State)\n\nTitle: The story of the information paradox\n\nAbstract:  In 1975 Hawking argued that black hole evaporation would lead to a loss of unitarity in quantum theory.  The small corrections theorem made Hawking’s argument into a precise statement: if semiclassical physics hold to leading order in any gently curved region of spacetime\, then there can be no resolution to the paradox. In string theory\, whenever people have been able to construct microstates explicutly\, the states turned out to be horizon sized objects (fuzzballs) with no horizon; such a structure of microstates resolves the information paradox since their is no pair creation at a vacuum horizon. There have been a set of parallel attempts to resolve the paradox (with ideas involving wormholes\, islands etc) where the horizon is smooth in some leading approximation. An analysis of such models however indicated that in each case the exact quantum gravity theory would either have to be nonunitary or to have dynamics at infinity that is conflict with usual low energy physics in the lab.
URL:https://cmsa.fas.harvard.edu/event/title-tba-4/
LOCATION:CMSA Room G10\, CMSA\, 20 Garden Street\, Cambridge\, MA\, 02138\, United States
CATEGORIES:Swampland Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20220509T130000
DTEND;TZID=America/New_York:20220509T140000
DTSTAMP:20260507T131417
CREATED:20230730T181939Z
LAST-MODIFIED:20240214T102113Z
UID:10001150-1652101200-1652104800@cmsa.fas.harvard.edu
SUMMARY:Inflation and light Dark Matter constraints from the Swampland
DESCRIPTION:Abstract: I will explore the interplay between Swampland conjectures and models of inflation and light Dark Matter. To that end\, I will briefly review the weak gravity conjecture (WGC) and the related Festina Lente (FL) bound. These have implications for light darkly and milli-charged particles and can disfavor a large portion of parameter space. The FL bound also implies strong restrictions on the field content of our universe during inflation and presents an opportunity for inflationary model building. At the same time\, it rules out some popular models like chromo-natural inflation and gauge-flation. Finally\, I will review  another Swampland conjecture related to Stückelberg photon masses and discuss its implications for astro-particle physics.
URL:https://cmsa.fas.harvard.edu/event/5-9-2022-swampland-seminar/
LOCATION:Virtual
CATEGORIES:Swampland Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20220418T130000
DTEND;TZID=America/New_York:20220418T140000
DTSTAMP:20260507T131417
CREATED:20230730T181614Z
LAST-MODIFIED:20240301T072639Z
UID:10001149-1650286800-1650290400@cmsa.fas.harvard.edu
SUMMARY:4/18/2022 Swampland Seminar
DESCRIPTION:Open mic Swampland Discussion \nTopic: Cobordism
URL:https://cmsa.fas.harvard.edu/event/4-18-2022-swampland-seminar/
LOCATION:Virtual
CATEGORIES:Swampland Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20220411T100000
DTEND;TZID=America/New_York:20220411T110000
DTSTAMP:20260507T131417
CREATED:20230730T181035Z
LAST-MODIFIED:20240301T072853Z
UID:10001148-1649671200-1649674800@cmsa.fas.harvard.edu
SUMMARY:Type IIB flux compactifications with $h^{1\,1}=0$
DESCRIPTION:Abstract: We revisit type IIB flux compactification that are mirror dual to type IIA on rigid Calabi-Yau manifolds. We find a variety of interesting new solutions\, like fully stabilized Minkowski vacua and infinite families of AdS$_4$ solutions with arbitrarily large numbers of spacetime filling D3 branes. We discuss how these solutions fit into the web of swampland conjectures.
URL:https://cmsa.fas.harvard.edu/event/4-11-2021-swampland-seminar/
LOCATION:Virtual
CATEGORIES:Swampland Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20220404T100000
DTEND;TZID=America/New_York:20220404T230000
DTSTAMP:20260507T131417
CREATED:20230730T180720Z
LAST-MODIFIED:20240301T073634Z
UID:10001147-1649066400-1649113200@cmsa.fas.harvard.edu
SUMMARY:Causality constraints on corrections to Einstein gravity
DESCRIPTION:Swampland Seminar \nSpeakers: Simon Caron-Huot (McGill University) and Julio Parra (Caltech) \n\n\nTitle: Causality constraints on corrections to Einstein gravity \n\nAbstract: We study constraints from causality and unitarity on 2→2 graviton scattering in four-dimensional weakly-coupled effective field theories. Together\, causality and unitarity imply dispersion relations that connect low-energy observables to high-energy data. Using such dispersion relations\, we derive two-sided bounds on gravitational Wilson coefficients in terms of the mass M of new higher-spin states. Our bounds imply that gravitational interactions must shut off uniformly in the limit G→0\, and prove the scaling with M expected from dimensional analysis (up to an infrared logarithm). We speculate that causality\, together with the non-observation of gravitationally-coupled higher-spin states at colliders\, severely restricts modifications to Einstein gravity that could be probed by experiments in the near future.
URL:https://cmsa.fas.harvard.edu/event/4-5-2022-swampland-seminar/
LOCATION:Virtual
CATEGORIES:Swampland Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20220328T130000
DTEND;TZID=America/New_York:20220328T140000
DTSTAMP:20260507T131417
CREATED:20230730T180327Z
LAST-MODIFIED:20240301T070636Z
UID:10001146-1648472400-1648476000@cmsa.fas.harvard.edu
SUMMARY:On renormalisation group induced moduli stabilisation and brane-antibrane inflation
DESCRIPTION:Abstract: A proposal to use the renormalisation group to address moduli stabilisation in IIB string perturbation theory will be described. We revisit brane-antibrane inflation combining this proposal with non-linearly realised supersymmetry.
URL:https://cmsa.fas.harvard.edu/event/3-28-2022-swampland-seminar-series/
CATEGORIES:Swampland Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20220321T130000
DTEND;TZID=America/New_York:20220321T140000
DTSTAMP:20260507T131417
CREATED:20230730T180020Z
LAST-MODIFIED:20240301T073804Z
UID:10001145-1647867600-1647871200@cmsa.fas.harvard.edu
SUMMARY:3/21/2022 – Swampland Seminar
DESCRIPTION:Open Mic Discussion\nTopic: Entropy bounds (species bound\, Bekenstein bound\, CKN bound\, and the like)
URL:https://cmsa.fas.harvard.edu/event/3-21-2022-swampland-seminar/
CATEGORIES:Swampland Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20220307T100000
DTEND;TZID=America/New_York:20220307T113000
DTSTAMP:20260507T131417
CREATED:20230730T175629Z
LAST-MODIFIED:20240301T073931Z
UID:10001144-1646647200-1646652600@cmsa.fas.harvard.edu
SUMMARY:4d strings at strong coupling
DESCRIPTION:Speakers: Fernando Marchesano (UAM-CSIC\, Madrid)  and Max Wiesner (Harvard CMSA)\n\n\n\nTitle: 4d strings at strong coupling\n\n\nAs usual\, the format will be 45 min talk + 30 min discussion\, to encourage participation from the audience.\nLooking forward to seeing you there!
URL:https://cmsa.fas.harvard.edu/event/3-7-2022-swampland-seminar/
LOCATION:Virtual
CATEGORIES:Swampland Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20220228T130000
DTEND;TZID=America/New_York:20220228T140000
DTSTAMP:20260507T131417
CREATED:20230730T175143Z
LAST-MODIFIED:20240301T074056Z
UID:10001143-1646053200-1646056800@cmsa.fas.harvard.edu
SUMMARY:Generalized Global Symmetries and the Weak Gravity Conjecture
DESCRIPTION:
URL:https://cmsa.fas.harvard.edu/event/2-28-2022-swampland-seminar/
CATEGORIES:Swampland Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20220207T130000
DTEND;TZID=America/New_York:20220207T140000
DTSTAMP:20260507T131417
CREATED:20240214T110354Z
LAST-MODIFIED:20240301T074524Z
UID:10002690-1644238800-1644242400@cmsa.fas.harvard.edu
SUMMARY:Holomorphic CFTs and topological modular forms
DESCRIPTION:Abstract: The theory of topological modular forms leads to many interesting constraints and predictions for two-dimensional quantum field theories\, and some of them might have interesting implications for the swampland program. In this talk\, I will show that a conjecture by Segal\, Stolz and Teichner requires the constant term of the partition function of a bosonic holomorphic CFTs to be divisible by specific integers determined by the central charge. We verify this constraint in large classes of physical examples\, and rule out the existence of an infinite set of “extremal CFTs”\, including those with central charges c = 48\, 72\, 96 and 120.
URL:https://cmsa.fas.harvard.edu/event/2-7-2022-swampland-seminar/
CATEGORIES:Swampland Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20220131T130000
DTEND;TZID=America/New_York:20220131T140000
DTSTAMP:20260507T131417
CREATED:20240214T110850Z
LAST-MODIFIED:20240301T074639Z
UID:10002691-1643634000-1643637600@cmsa.fas.harvard.edu
SUMMARY:Membrane Limits in Quantum Gravity
DESCRIPTION:
URL:https://cmsa.fas.harvard.edu/event/1-31-2022-swampland-seminar/
CATEGORIES:Swampland Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20211206T130000
DTEND;TZID=America/New_York:20211206T140000
DTSTAMP:20260507T131417
CREATED:20240214T112042Z
LAST-MODIFIED:20240301T074922Z
UID:10002695-1638795600-1638799200@cmsa.fas.harvard.edu
SUMMARY:Extremal Black Hole Corrections from Iyer-Wald
DESCRIPTION:Abstract: Extremal black holes play a key role in our understanding of various swampland conjectures and in particular the WGC. The mild form of the WGC states that higher-derivative corrections should decrease the mass of extremal black holes at fixed charge. Whether or not this conjecture is satisfied depends on the sign of the combination of Wilson coefficients that control corrections to extremality. Typically\, corrections to extremality need to be computed on a case-by-case basis\, but in this talk I will present a universal derivation of extremal black hole corrections using the Iyer-Wald formalism. This leads to a formula that expresses general corrections to the extremality bound in terms of the stress tensor of the perturbations under consideration\, clarifying the relation between the WGC and energy conditions. This shows that a necessary condition for the mild form of the WGC to be satisfied is a violation of the Dominant Energy Condition. This talk is based on 2111.04201.
URL:https://cmsa.fas.harvard.edu/event/12-6-2021-swampland-seminar/
CATEGORIES:Swampland Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20211129T130000
DTEND;TZID=America/New_York:20211129T140000
DTSTAMP:20260507T131417
CREATED:20240214T112454Z
LAST-MODIFIED:20240301T075047Z
UID:10002697-1638190800-1638194400@cmsa.fas.harvard.edu
SUMMARY:Scale separated AdS vacua?
DESCRIPTION:Abstract: In this talk I will review massive type IIA flux compactifications that seem to give rise to infinite families of supersymmetric 4d AdS vacua. These vacua provide an interesting testing ground for the swampland program. After reviewing potential shortcomings of this setup\, I will discuss recent progress on overcoming them and getting a better understanding of these solutions.
URL:https://cmsa.fas.harvard.edu/event/11-29-2021-swampland-seminar/
CATEGORIES:Swampland Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20211122T130000
DTEND;TZID=America/New_York:20211122T140000
DTSTAMP:20260507T131417
CREATED:20240214T091807Z
LAST-MODIFIED:20240301T075427Z
UID:10002616-1637586000-1637589600@cmsa.fas.harvard.edu
SUMMARY:Taming the Landscape
DESCRIPTION:Abstract: In this talk I will introduce a generalized notion of finiteness that provides a structural principle for the set of effective theories that can be consistently coupled to quantum gravity. More concretely\, I will propose a ‘tameness conjecture’ that states that all scalar field spaces and coupling functions that appear in such an effective theory must be definable in an o-minimal structure. The fascinating field of tame geometry has seen much recent progress and I will argue that the results can be used to support the above swampland conjecture. The strongest evidence arises from a new finiteness theorem for the flux landscape which is shown using the tameness of the period map.
URL:https://cmsa.fas.harvard.edu/event/11-22-2021-swampland-seminar/
CATEGORIES:Swampland Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20211115T130000
DTEND;TZID=America/New_York:20211115T140000
DTSTAMP:20260507T131417
CREATED:20240214T092545Z
LAST-MODIFIED:20240301T080852Z
UID:10002625-1636981200-1636984800@cmsa.fas.harvard.edu
SUMMARY:11/15/2021 – Swampland Seminar
DESCRIPTION:This week’s seminar will be an open mic discussion which will be led by Nima Arkani-Hamed (IAS)\, and by Gary Shiu (UW-Madison)\, and the topic will be “Swampland constraints\, Unitarity and Causality”. They will start with a brief introduction sharing their thoughts about the topic and moderate a discussion afterwards.
URL:https://cmsa.fas.harvard.edu/event/11-15-2021-swampland-seminar/
CATEGORIES:Swampland Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20211101T130000
DTEND;TZID=America/New_York:20211101T140000
DTSTAMP:20260507T131417
CREATED:20240214T092956Z
LAST-MODIFIED:20240301T081324Z
UID:10002631-1635771600-1635775200@cmsa.fas.harvard.edu
SUMMARY:Bubble instability of mIIA on AdS_4 x S^6
DESCRIPTION:Speaker: Pieter Bomans\, Princeton \nTitle: Bubble instability of mIIA on AdS_4 x S^6 \nAbstract: Recently\, a set of non-supersymmetric AdS_4 vacua of massive type IIA string theory has been constructed. These vacua are perturbatively stable with respect to the full KK spectrum of type mIIA supergravity and furthermore\, they are stable against a variety of non-perturbative decay channels. Hence\, at this point\, they represent a serious challenge to the AdS swampland conjecture. In my talk\, I will review in detail the construction of these vacua as well as introduce a new decay channel\, ultimately sealing their fate as being unstable.
URL:https://cmsa.fas.harvard.edu/event/11-1-2021-swampland-seminar/
CATEGORIES:Swampland Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20211025T130000
DTEND;TZID=America/New_York:20211025T140000
DTSTAMP:20260507T131417
CREATED:20240214T093259Z
LAST-MODIFIED:20240301T082800Z
UID:10002633-1635166800-1635170400@cmsa.fas.harvard.edu
SUMMARY:Exploring the Holographic Swampland
DESCRIPTION:Abstract: I describe our work looking at `traditional’ scenarios of moduli stabilisation from a holographic perspective. This reveals some interesting structure that is not apparent from the top-down perspective. For vacua in the extreme regions of moduli space\, such as LVS in type IIB or the DGKT flux vacua in type IIA\, the dual moduli conformal dimensions reduce to fixed values – in a certain sense\, the low-conformal dimension part of the CFT is unique and independent of the large number of flux choices. For the DGKT flux vacua these conformal dimensions are also integer\, for reasons we do not understand.
URL:https://cmsa.fas.harvard.edu/event/10-25-2021-swampland-seminar/
CATEGORIES:Swampland Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20211018T130000
DTEND;TZID=America/New_York:20211018T140000
DTSTAMP:20260507T131417
CREATED:20240214T093528Z
LAST-MODIFIED:20240301T082954Z
UID:10002636-1634562000-1634565600@cmsa.fas.harvard.edu
SUMMARY:The Festina Lente Bound
DESCRIPTION:Abstract: I will explain what the Festina Lente bound means and where it comes from. Then I discuss its possible implications for phenomenology\, both top-down and bottom-up.
URL:https://cmsa.fas.harvard.edu/event/10-18-2021-swampland-seminar/
CATEGORIES:Swampland Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20210927T130000
DTEND;TZID=America/New_York:20210927T140000
DTSTAMP:20260507T131417
CREATED:20240214T093736Z
LAST-MODIFIED:20240301T083146Z
UID:10002640-1632747600-1632751200@cmsa.fas.harvard.edu
SUMMARY:Convexity of Charged Operators in CFTs and the Weak Gravity Conjecture
DESCRIPTION:Abstract: In this talk I will introduce a particular formulation of the Weak Gravity Conjecture in AdS space in terms of the self-binding energy of a particle. The holographic CFT dual of this formulation corresponds to a certain convex-like structure for operators charged under continuous global symmetries. Motivated by this\, we propose a conjecture that this convexity is a general property of all CFTs\, not just those with weakly-curved gravitational duals. It is possible to test this in simple CFTs\, the conjecture passes all the tests performed so far.
URL:https://cmsa.fas.harvard.edu/event/9-27-2021-swampland-seminar/
CATEGORIES:Swampland Seminar
END:VEVENT
END:VCALENDAR