for Fundamental Research), [T] Sebastian Mizera (Institute for Advanced Study), [T] Sameer Murthy (Kings College London), [S] Hirosi Ooguri (Caltech and Kavli IPMU), [D] Joo Penedones (cole Polytech. David Ben-Zwi The LQG derivation, involving an ad-hoc choice for the Immirzi parameter Do I need a thermal expansion tank if I already have a pressure tank? de Lausanne), [D] Nathan Seiberg (Institute for Advanced Study), [T] Ashoke Sen (Harish-Chandra Research Institute), [R]Shu-Heng Shao (Institute for Advanced Study), [T] Yuji Tachikawa (Kavli IPMU and U of Tokyo), [T] Gregory Tarnopolsky (Carnegie MellonU), [T] Gonzalo Torroba (Centro Atmico Bariloche), [D] Edward Witten (Institute for Advanced Study), [G] Ahmadullah Zahed (Bangalore Indian Inst. Talks are available for watching every day via Youtube, links are on the main page. Robert A. Wilson, At the hand of several examples I will illustrate that this phenomenon is generic and that most Calabi-Yau threefolds admit such degenerations and a corresponding refinement of the invariants. The only game in town in fundamental physics now is to give up on a theory of the real world. Organized by Mina Aganagic , Ivan Danilenko , Andrei Okounkov, and Peng Zhou. As Peter keeps on repeating, the denial of the string community to acknowledge the failure of string theory as a unification theory (which is nothing to be ashamed off: physics is full of beautiful theory that are not correct) is a shame for the physics community. Blasting is well underway in South Dakota for the $2 billion + LBNF/DUNE facility. The String Math series of conferences have become an important event for anyone working at the interface between mathematics and theoretical physics (string theory, quantum field theory and adjacent topics), bringing together an interdisciplinary cohort of pure mathematicians and theoretical physicists. (videos of the talks at the bottom). We will explain how ideas from oriented matroids, tropical geometry, and cluster algebras shed light on the structure of the positive Grassmannian and the amplituhedron. They have obvious applications to atomic physics. But I went through the hard road, being told just to accept all fundamental questions I raised above as unanswered and move on to the cutting-edge problems whatever and whonever decides what these are. operators, and function (e.g. It seems that non-stringy approaches to quantum gravity are not very successful at reproducing these universal results. Abstract: Quantum curves can be associated with the singular vectors in the Verma modules over the Virasoro algebra. Title: The higher dimensional tropical vertex IMPA, Rio de Janeiro, June 14 - 18, 2021- Turned into an online eventSpeaker: Giovanni Felder (ETH Zrich)Lecture title: Superstring measure and the superper. I could go on the whole night, but I believe, as most other string theorists do, there are more urgent or at least doable problems to solve now. Invertible QFTs are expected to form a sheaf of \infty-groupoids, and we apply the framework of differential cohomology to this sheaf. Is a PhD visitor considered as a visiting scholar? An exchange that was otherwise quite lively and interesting, you paint in the worst possible way. We determine the T-dual theories and match those global symmetries across the dualities. It seems that no one in the string theory community dares to publicly breathe a word of skepticism. What am I doing wrong here in the PlotLegends specification? Tarasa Szewczenki oraz w Instytucie Matematyki Ukraiskiej akademii Nauk w Kijowie, a nastpnie uzyskaa stopie magistra na uniwersytecie w Kaiserlautern, oraz stopie doktora w 2013 r. na uniwersytecie w Bonn w Niemczech. In this talk, I will present a match between the large-N saddles of the correlation functions of determinants with semiclassical D-brane configurations in the dual theory, using a spectral curve construction. He discusses the swampland philosophy, but gives as a challenge to theorists just making more precise the sort of empty question that this philosophy deals in (he asks whether D=9 SU(2021) to the power 2021 is in the swampland). with the exact opposite agenda. It is healthy. Just like in the smooth case, one can ask about the multiplicities of BPS states that now carry an additional discrete charge. Making statements based on opinion; back them up with references or personal experience. Zhengping Gui (International Centre for Theoretical Physics) Mhh, you could use the Function() constructor: There's nothing wrong with eval, especially for cases like this. [Slides], Martin Bies (University of Pennsylvania) Title: Quantum duality and Morita theory for chiral algebras [online talk] Finally, we will talk about the connections between the sphere packing problem and some mysteries of modern physics. We revisit this construction, working directly in the setting of the holomorphically twisted theory and viewing the topological twists as further deformations. I will illustrate this construction on examples of low rank 4d N=2 SCFTs. He mentions that one basic problem with this is that there is no understanding of what happens in time-dependent backgrounds, so, in particular, this is useless for addressing the big bang, which is the one place people now point to as a possible connection to real world data. It also gives one a feeling for how Arkani-Hamed works through problems. Math 435 (Differential Geometry) Fall 2020. nagrod Salema, nagrod Matematycznego Instytutu Claya, nagrod New Horizons in Mathematics. . The string community has been dishonest for at least 20 years, and has absolutely no right to give any lessons about ethics in science. The operators satisfy an operator product expansion. Strings 2021 will be held online during the two-week period June 21 July 2, 2021 from 9:30 15:00 in So Paulo (8:30 14:00 in NY, 14:30 20:00 in Paris). Piotr Sukowski (chair) Finally, we will discuss one recent example (joint with Justin Hilburn) that can be completely understood mathematically: abelian 3d mirror symmetry. Asking for help, clarification, or responding to other answers. with the exact opposite agenda.. Check this JSBenchmark. Of course, these are people. Author: Online2PDF.com Created Date: I agree with Felix. We will focus on understanding 3d mirror symmetry viachiralalgebras. Title: Quivers for 3-manifolds This approach is based on 2105.06039 and is joint work with Aganagic and Rapcak. A place where magic is studied and practiced? Matilde Marcolli I would be eager to read a real formal discussion if first-quantised RNS superstring in euclidean signature is quantum mechanically equivalent (unitary Boguliubov transformation) to original version starting from Minkowski signature. and finally I published a package on npm string-math. Its very good but he often leaves the reader a lot to figure out. 3 years ago, F_K invariants of knot complements in 3-sphere have been proposed. The resulting quiver Yangians, together with their trigonometric and elliptic versions, unify various known results and generalize them to a much larger class. In response to the obvious question about relation to experiment and testability, people have clearly completely given up on this, with nothing to say (other than a bogus claim that string theory makes some prediction about B-mode polarization), going on about how it took thousands of years for the atomic hypothesis to be vindicated. What is the !! String Maths 2021 During the week of June 14-18 we will be hosting a major event in mathematical physics. Requiring the unitary equivalence also implies Modular Chaos Bound = Chaos Bound''. Title: Category of QFTs and differential cohomology Unfortunately, finding explicit solutions to the system is a challenging problem due to the existence of an anomaly cancellation condition for the gauge fields. Poor fool that I am, Title: A holomorphic approach to fivebranes But it is clear that these colleagues are attempting to understand topics in QFT and Gravity, with the tools they have at hand. The way I see the string people (not necessarily those who appear in the media, but those who publish in the arXiv) is as a small set of honest and hard working physicists, technically sophisticated, researching mostly on QFT and Gravity, with various approaches. He goes on to explain the landscape philosophy, which he sees string theorists (and himself) as now adopting. [Slides] [Video], Jan Dereziski (University of Warsaw) Certificates YouTube live YouTube playlist of the lectures Abstract: Gauge-String duality(or the AdS/CFT correspondence, as a special case) has wide ranging ramifications in physics as well as mathematics. Title: Topological Langlands duality and 1-form symmetries Participant responses to online questionnaire, Clickhereto use the Slack workspace of Strings 2021. We present a novel construction of such flux vacua in permutation-symmetric multiparameter compactifications, and develop methods for efficiently computing the zeta functions of the corresponding geometries. The nature of simulating nature: A Q&A with IBM Quantum researcher Dr. Jamie We've added a "Necessary cookies only" option to the cookie consent popup. - rgbk21. Abstract: I will review the Cohomological Hall algebra associated to a quiver and an oriented cohomology theory. Title: Revisiting Heterotic ALE Instantons: F-theory, 2-groups, and T-duality Title: Cohomological-type Hall algebras and their representation theory Leonardo Rastelli Probably not if you ask me. [Slides] [Video], Dalimil Mazac (IAS) Ill explain this phenomenon, and propose a new effective algorithm for the calculation of the spectrum which is not based on quantum algebra at all (joint work in progress with A. Soibelman). This construction has several advantages and opens perspectives towards generalization to the case of the $cW$-algebras Strings 2021 started today, program is available here. In the case of rank one instantons this factors through a `Heisenberg type super Lie algebra and the story is analogous to Nakajimas action on the Hilbert scheme. Zygmunt Lalak But what DUNE will find has been predicted years ago: normal neutrino mass order, no additional neutrinos, no proton decay, and no physics beyond the standard model whatsoever. The simplest example is the qubit. Nigel Hitchin (University of Oxford) This is based on joint work with Raghavendran. Can I tell police to wait and call a lawyer when served with a search warrant? Even without LQG, there are many ideas on/in QG which are physically well founded. This topic has been recently explored,from several differentperspectives,by Kontsevich-Soibelman and Doan-Rezchikov. In a different direction, I will in this talk present a conjectural picture relating holomorphic Floer theory of complex integrable systems to Donaldson-Thomas invariants. Sat 3 Apr 2021 12.00 EDT Last modified on Tue 6 Apr 2021 09.54 EDT. Can I did this command pattern if I declare the operator how it were a variable? Math Talks and Number Strings provide the foundation to help students improve their understanding and comprehension of numbers. I wonder how to find the number of ternary strings that have at least one 0, one 1 and one 2. Im no whit wiser than when I began. Abstract: Gross and Siebert developed a program for understanding mirror symmetry algebro-geometrically. Za te oraz inne osignicia otrzymaa wiele prestiowych nagrd i wyrnie, m.in. @adrianmigueldiego: as a mathematical-physics, I have been earring for 20 years that string theory is the only game in town, I have seen the raise of LQG as an opponent to string, and I witnessed the tentative of string theory to kidnap noncommutative geometry claiming that this was nothing but the geometry of string theory. Here's a quick basic example I came up with (updated (2011-06-26): cleaner w/ input boxes). One can define correlation functions and derive conformal bootstrap equations constraining the spectrum. [Slides], Nicolo Piazzalunga (Uppsala University) The choice of flat connection at infinity for E8 or Spin(32)/Z2 respectively captures the feature of the 6D conformal matter theory built on F-theory geometry. 2. Result is the same as without the 'new'. These operators are interesting for several reasons: Possible applications include computing massive string excitations, volumes of non-calibrated cycles, the SYZ conjecture, and approximating solutions to the Hermitian Yang-Mills equations. Well, that would be the case if people follow the hype for last 20-30 years or more. [Slides] [Video], Sam Raskin (University of Texas at Austin) I just had a look at that session, and more than anything, felt sorry seeing such eminent physicists giving such vacuous reasons just for the sake of defending a theory they have worked on for a long time. Nikita Nekrasov They are exactly solvable in terms of Whittaker functions. Abstract: We will discuss how dualities of quantum field theories can be understood as analogous to Morita equivalences for algebras of various types. Abstract: I will present some conjectures for higher-rank K-theoretic Donaldson-Thomas theory on toric three-folds, and some lessons that we learned from working equivariantly on non-compact spaces. Is it possible to create a concave light? [Slides], Alex S. Arvanitakis (Vrije Universiteit Brussel) [Slides]. Does a barbarian benefit from the fast movement ability while wearing medium armor? [Slides] [Video], Boris Pioline (Sorbonne Universit and CNRS) His third talk emphasizes thinking of space-time vectors as two by two matrices (see section 40.4 of my QM book). It would differ in rare case, if this function evil() itself declared some variables which would want to be. This is enabledby thesurprisingappearanceof a Penner-like matrix model whose spectral curve turns out to give a Strebel differential. Abstract: I will review the holomorphic twist of four-dimensional N=1 gauge theories and present the Feynman diagrams which control the perturbative corrections to the twistingsupercharge and to the higher operations available in the twisted theories. IMPA, Rio de Janeiro, June 14 18, 2021 Turned into an online eventSpeaker: Mina Aganagic (UC Berkeley)Lecture title: Knot homologies from mirror symmetryEvent page: http://bit.ly/stringmath2021Videos playlist: https://bit.ly/3v2lHlsThe series of String-Math conferences has developed into a central event on the interface between mathematics and physics related to string theory, quantum field theory and neighboring subjects.