Weekly on Mondays 2:10 PM (Pacific Time) Meetings are in-person, at 402 Physics South. 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. String Data 2020, CERN, December 2020. Thank you. Dr. Kessner. 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. Postal Address:Instituto de Matemtica Pura e Aplicada [Slides]. Fall 2021. 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. Depending on the coupling constant and dimension, they exhibit several distinct scaling behaviors (or if you prefer the high energy jargon, various renormalization group flows). Evaluating a Math Expression in Java | Baeldung Title: Spectrum in quantum mechanics and deformed periods [online talk] The problem is not that its too new to be evaluated properly, but that its been a failure. CEIs should be thought of as a precise realization of the general idea, due to Kontsevich, that the category of open strings (plus data of the splitting) determine closed string invariants. Abstract: I will review the Cohomological Hall algebra associated to a quiver and an oriented cohomology theory. My talk will be based on recent joint work with Baej Ruba. crickets]. We study an open quantum many body spin system to check whether its integrable and chaotic regimes can be distinguished by looking at the non-unitary dynamics of a simple operator in Krylov space. [Slides], Muyang Liu (Uppsala University) Greg Moore Mark Gross It is healthy. Here is an implementation of the Shunting-yard algorithm with additional support for unary prefix (e.g. The 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. (UoS & CNRS) Quantum G & of Looijenga pairs Berkeley String-Math 2021 Overview The two main messages: 1ve (different, but equivalent) string-theory motivated enumerative theories built from (X;D) 2they are all closed-form solvable Joint with P. Bousseau (ETH Zrich/Saclay) and M. van Garrel (Warwick/Birmingham). I wonder how to find the number of ternary strings that have at least one 0, one 1 and one 2. You wrote [Slides] [Video], Davide Gaiotto (Perimeter Institute) The whole tone of the discussion was pretty depressing. Abstract: Homological block, commonly denoted by , is a 3-manifold invariant whose existence was predicted by S. Gukov, D. Pei, P. Putrov, and C. Vafa in 2017 using 3d/3d correspondence. Another talk of Penrose (and a conference in his honour): The video answered some questions that I still had (e.g. Summary Talk. Thats interesting, can you give pointers? PDF Aalok Misra Indian Institute of Technology Roorkee - IMPA 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. This is exactly the place where you should be using eval(), or you will have to loop through the string and generate the numbers. Rafa R. Suszek, Louis Alvarez-Gaume Strings 2022 Summary Talk. And how I regret it, D-branes also The real stuff happens in physics without a press release, book, or blog. This is a joint work with Kwokwai Chan and Ziming Ma. Boris Pioline (Universit Pierre et Marie Curie) for Fundamental Research), [D] Juan Maldacena (Institute for Advanced Study), [T] Shiraz Minwalla (Tata Inst. Pawe Caputa [Slides] [Video], Boris Pioline (Sorbonne Universit and CNRS) Can I did this command pattern if I declare the operator how it were a variable? A place where magic is studied and practiced? 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). The next String Math conference will take place on July 10-14, 2023, at the University of Melbourne in Australia. Also I explain what is the dimension for a mathematician and why it is an extremely useful concept for everyone. Math 435 (Differential Geometry) Fall 2020. Workshop on Algebraic Geometry and Machine Learning, Tsinghua Sanya International Mathematics Forum, January 2021. How to transform string into integers and operators in Javascript? Using Hands-On Tools to Monitor Progress and Assess Students in Math. How can I guarantee that my enums definition doesn't change in JavaScript? In our examples we find agreement with the flux modularity conjecture of Kachru, Nally, and Yang. We are going to perform a construction of such quantum curves using the mathematical language of vertex operator algebras. This is a joint work with K. Ohmori (U. Tokyo). In the presence of chiral multiplets that are added to plumbing graphs, we show that ST-transformations lead to many equivalent plumbing theories, and hence generalize the scope of Kirby moves. TheAttractor Flow Tree conjecture postulates that the BPS index $\Omega(\gamma,z)$ for given charge $\gamma$and moduli $z$ can be reconstructed from the`attractor indices $\Omega_*(\gamma_i)$ counting BPS states of charge $\gamma_i$ in their respective attractor chamber, by summing over all possible decompositions $\gamma=\sum_i \gamma_i$ and over decorated rooted flow trees. Reimundo Heluani Organizing Committee. Title: On topology change in Poisson-Lie T-duality That would be something like (a real implementation will be somewhat more complex, especially if you consider the use of parenthesis, but you get the idea). Albrecht Klemm This is joint work with Constantin Teleman and Greg Moore. I hadn't known about this until your post. Title: Non-Invertible Symmetries and Higher-Categories Requiring the unitary equivalence also implies Modular Chaos Bound = Chaos Bound''. This topic has been recently explored,from several differentperspectives,by Kontsevich-Soibelman and Doan-Rezchikov. Asking for help, clarification, or responding to other answers. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. Title: q-series for so(3) and osp(1|2) What sort of strategies would a medieval military use against a fantasy giant? Abstract: Thepositive GrassmannianGrk,n0is the subset of the real Grassmannian where all Plcker coordinates are nonnegative. Only if the string comes from a trusted source. Are there any actual attempts in the literature to build such an intrinsically quantum theory, or is this just pie in the sky? Matthias Gaberdiel Mina Aganagic LQG calculations claim to reproduce the semi-classical limit. To learn more, see our tips on writing great answers. This story also relates to the higher-form global symmetry. Title: Giant Gravitons in Twisted Holography All, @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. 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. String Math 2021 | IMPA - Instituto de Matemtica Pura e Aplicada Abstract: The six-dimensional superconformal field theory associated to an ADE Lie algebra plays a key role in the AGT correspondence. 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. [Slides] [Video], Mirjam Cvetic (University of Pennsylvania) General string perturbation theory using 2d conformal field theory. However, this is an unrealistically simple description of the situation, even for a basic example such as the classical phase space.. The only message I hear repeatedly is that String theory is the only game in town. http://jsfiddle.net/vol7ron/6cdfA/. Title: Holomorphic boundary conditions for topological field theories via branes in twisted supergravity In the present talk we show that the string theory duals of these systems are classically integrable. June 14-18, 2021: String-Math 2021 (Plenary talk), IMPA, Rio de Janeiro, Brazil. Title: Smoothing, scattering and a conjecture of Fukaya [online talk] [Slides] [Video], Dan Freed (University of Texas at Austin) With what result? Another series of talks that I took a look at and that I can recommend is Nima Arkani-Hameds lectures on Physics at Future Colliders at the ICTP summer school on particle physics. Abstract: I will be discussing my recent work [2110.08179] with Chris Blair and Dan Thompson on topology change in Poisson-Lie T-duality with spectators (i.e. NN-QFT Correspondence. As an application, I will use conformal bootstrap techniques to obtain new rigorous bounds on the first positive Laplacian eigenvalue of hyperbolic orbifolds. 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. Connect and share knowledge within a single location that is structured and easy to search. Making statements based on opinion; back them up with references or personal experience. Is String Theory a Theory of Nature? Andrew Neitzke - Yale University IMPA, Rio de Janeiro, June 14 18, 2021 Turned into an online eventSpeaker: Si Li (Tsinghua University)Lecture title: Elliptic chiral homology and quantum master equationEvent 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. People are attempting to understand things, with the tools at hand. Title: String integrability of defect CFT and dynamical reflection matrices The derivations listed in 0705.3024 seem to fall into three classes: String Theory (D-brane/String state counting, AdS/CFT, Fuzzballs) Math 250 (Vector Analysis) . Im no whit wiser than when I began. Our starting point will be the observation that a rich source of discrete gauge symmetries in M-theory are Calabi-Yau threefolds with singularities that cannot be crepantly resolved. Exactly because of this. More information can be found here Thematic trimester on vertex algebras: Adrian, String theory calculations that can be done in unphysical situations (wrong dimension, lots of SUSY, extremal black holes) claim to reproduce the semiclassical limit. The Ryu-Takayanagi formula then encodes the fractal dimension of the boundary, while the extremal surfaces encode an important part of the geometry of the buildings, showing a new interplay between ideas from holography and geometric group theory. How is the idea that particles are irreducible representations of the Poincar group work in the context of quasiparticles in condensed matter physics, where the underlying system background is generally not symmetric under Poincar transformations (e.g. [Slides] [Video], Pierrick Bousseau (ETH Zrich) Dan Freed (University of Texas at Austin) Our conjecture, which we have developed with Ben-Zvi, Gunningham and Safronov, asserts an equality of dimensions between the G- and G^L-skein modules of a 3-manifold at generic quantization parameter. August 2-7, 2021: International Congress on Mathematical Physics (ICMP) 2021 (session Quantum Field Theory), Geneva, Switzerland. One can also Higgs chiral multiplets. This talk is based on joint work with Si Li. These higher-categories are constructed by equivariantizing higher-categories corresponding to invertible higher-form symmetries. Hawking tells you what the semiclassical limit is. Talks are available for watching every day via Youtube, links are on the main page. Once again, this is just an opinion. 1+ 2 *2' // 5 but ' 1 + +2* 2 ' // Error, This shows to be more performant than @vol7ron's solution. Really amazing work! Skeptical challenging of arguments is supposed to be what science is all about, but the speakers in this panel made it seem that this is absolutely not something that is part of their field or what they do. (videos of the talks at the bottom). You are either blinded or so convinced by the idea that string theory has nothing to say about Physics, that you pick any phrase that adds to your view of things. Abstract: In 2002, Fukaya proposed a remarkable explanation of mirror symmetry detailing the SYZ conjecture by introducing two correspondences: one between the theory of pseudo-holomorphic curves on a Calabi-Yau manifold X and the multi-valued Morse theory on the base B of an SYZ fibration p : X B, and the other between deformation theory of the mirror X and the same multi-valued Morse theory on B. But I believe that in todays update of this post you were not intellectually honest. [Slides], Carlos Perez-Sanchez (University of Heidelberg) To address the problem of quantization of a space with gauge fields, first the structure that in the smooth (i.e. Abstract: It has been found, originally in the context of black hole thermodynamics, that the concept of entropy is better-defined in the presence of gravity than in ordinary quantum field theory without gravity. sqrt()) notations. Add a comment | 21 . I will argue that they are encoded in the topological string partition functions of the singular Calabi-Yau itself and its various non-commutative resolutions. Abstract: I will describe a close analogy between the spectral geometry of hyperbolic manifolds and conformal field theory. [Slides], Nicolo Piazzalunga (Uppsala University) Ivan Ip's Homepage - Hong Kong University of Science and Technology Others clearly feel differently and think this is of huge significance. Inspired by definitions of abstract (finite) groups and algebras and their linear actions, we introduce a framework for these symmetries in field theory. Abstract: Currently, there is a strong interest in the study of non-invertible symmetries of quantum field theories. How do I check if an array includes a value in JavaScript? In my view, this anxiety to communicate to the public the latest developments is a sign of certain immaturity. (iii) Most superstring calculations are performed under euclidean worldsheet for many practical reasons, as we all know and love from Wicks rotation in standard q.f.t.s. [Slides], Shi Cheng (University of Warsaw) https://arxiv.org/pdf/0809.0305.pdf, Already at p.1 one reads, The Problem: According to textbooks, the passage from classical mechanics to quantum mechanics is made by replacing Poisson brackets with commutators. (ii) Every-time I receive a grant report asking for resources, penned by a senior string theorist, Im already able to guess the 1st lines: ST is the only mathematically consistent candidate for understanding quantum gravity while providing a framework potentially unifying all know fundamental interactions. We engineer these models using toric geometry techniques to construct non-compact threefolds that manifestly have multiple fibrations and hence M/F-theory lifts. The hyperKahler branches can be characterized by a combinatorial object known as a magnetic quiver. I will then outline work in progress with Gunningham and Safronov to prove the conjecture in a number of special cases. StringStringBuilderStringBufferMath. String Math 2021 - Mina Aganagic (UC Berkeley) - YouTube String Math 2021 IMPA, Rio de Janeiro, June 14 - 18, 2021- Turned into an online event The 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. I dont think I was misrepresenting those at all. We propose that the matching of 5d coulomb branches plus the 2-group structure constants determined by the higher form symmetry of LSTs as criteria to predict heterotic T-dual candidates.The exploitation are generalized by picking non-trivial flat connections at the infinity to break E8 and Spin(32)/Z2 into their subgroups and confirm these T-dualities by the matching of criteria aforementioned. We will focus on understanding 3d mirror symmetry viachiralalgebras. Title: Magnetic quivers for Superconformal Field Theories Due to its interaction, the system density matrix and operators within the system Hilbert space evolve non-unitarily. Besides reviews of major developments in the field and specialized talks on specific topics, an important novelty will be several informal discussions involving two researchers and the conference participants. Ironically, the very fact that he had to refer to it at all should alarm them. For a so called well defined mathematical theory, cannot be tweaked etc, the number of unsolved issues with it and the claim not understanding what string theory is is inconsistent. [Slides], Mateo Galdeano (University of Oxford) Abstract: Quantum curves can be associated with the singular vectors in the Verma modules over the Virasoro algebra. Title: The higher dimensional tropical vertex This is joint work with Mark Gross. See a live demo on the website. A better version was given September 22, 2021 at Yan Soibelman's M-seminar. The original sphere packing problem in dimension 3 is known as Keplers conjecture and it was famously solved by Thomas Hales at the very end of the twentieth century. To each 3-manifold equipped with a spin^c structure, is supposed to assign a q-series with integer coefficients that is categorifiable and provides an analytic continuation of the Witten-Reshetikhin-Turaev invariants. He lists two main things we know about the supposed theory: 1. If you are interested in what field theories Wittens probably interested in, then I certainly recommend you to follow the on going ICTSs Quantum Field Theory, Geometry and Representation Theory, with Wittens mini-course starting tomorrow: https://www.icts.res.in/program/qftgrt2021/talks, In order to get a feel what is at stake here, start with: Shing-Tung Yau (Harvard University), The interpretation of semiclassical gravity as an average of CFTs has provided much progress in understanding the factorization problem and the information paradox. Joerg Teschner (DESY) Calculate string value in javascript, not using eval From a mathematical perspective, these solutions involve interesting constructions in geometry such as integrable G2-structures and G2-instantons. During professional development, the authors learned about strings--a powerful instructional routine used in elementary classrooms to elicit students' mental mathematics strategies and use those strategies to build conceptual understanding. I will also touch upon the issue of the Lorentzian vs Euclidean metric slice in the path integral contour of quantum gravity. String theory is now older than not just my students, but also many of their parents and unfortunately its very well-established, sometimes even taught to high school students. We also explain how these invariants and homologies will be categorified in the process, and discuss their higher categorification. Its explicit description as a QFT has remained elusive. In the ending remark, Ooguri makes the observation that the percentage of speakers older than him is roughly a linear function (64-2x)% where x is the number of years after his PhD. String theorists are for the most part no longer actively pursuing connecting to particle physics of the real world. In this case, because the string is assumed to be safe and trusted, we would expect use of either eval() or the Function constructor to be reasonable. We provide new the structure that allows this, whose quantisation turns out to be lead to a multimatrix ensemble. Why are trials on "Law & Order" in the New York Supreme Court? Abstract: By studying M-theory on singular non-compact special holonomy spaces X we demonstrate, via a process of cutting and gluing of singularities that extend to the boundary of X, the appearance of 0-form, 1-form and 2-group symmetries in the resulting supersymmetric quantum field theory. Title: Perturbative calculations in twisted 4d gauge theories [online talk]

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