[Slides], Carlos Perez-Sanchez (University of Heidelberg) [Slides]. Abstract: Cosmic censorship as a conjecture about classical General Relativity is now understood to be false in both higher dimensional asymptotically flat space and four-dimensional AdS. Finally, I will mention how some of these features are likely to persist in a proposal for the worldsheet dual of free N=4 Super Yang-Mills theory. When the cohomology theory is the Morava E-theory, we obtain a new family of quantum groups labelled by a prime number and a positive integer. There will also be a public lecture and outreach activity Ask a String Theorist during the weekend. What hes doing is emphasizing ideas that are often not taught in conventional QFT courses (although they should be). What is a word for the arcane equivalent of a monastery? Title: Holographic tensor networks from hyperbolic buildings Strings 2021 is an annual conference that brings together the entire string theory community. (Anyway, String Theory is mainly about Quantum Gravity). We determine the T-dual theories and match those global symmetries across the dualities. [Slides] [Video], Jan Dereziski (University of Warsaw) David Ben-Zwi Exactly because of this. Really amazing work! This talk is based on joint work with Si Li. This talk is based on joint work with Xenia de la Ossa, arXiv:2111.13221. This gives the symmetry algebra action on the categorifiedDT. Abstract: Thepositive GrassmannianGrk,n0is the subset of the real Grassmannian where all Plcker coordinates are nonnegative. The whole tone of the discussion was pretty depressing. 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. Title: Path integral derivations of K-theoretic Donaldson invariants In my talk, I will discuss the following two examples. Maryna Viazovska was awarded with the Fields medal, https://www.fuw.edu.pl/faculty-of-physics-home.html, Hera guesthouse of the University of Warsaw (budget option), https://warsawgenomics.pl/en/sars-cov-2/koronawirus-rtpcr. https://8ecm.si/prizes, Ashoke Sen has computed the logarithmic corrections to the Bekenstein-Hawking entropy of various standard black hole solutions in this paper. Abstract: About 40 years ago J. Zinn-Justin formulated several conjectures about the perturbative expansion of the spectrum a quantum Hamiltonian (for the polynomial potential in 1 variable). Abstract: Twisted holography relates the 2d chiral algebra subsector of N = 4 SYM to the B-model topological string theory on the deformed conifold SL(2,C). Others clearly feel differently and think this is of huge significance. Albrecht Klemm 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. This finding suggests that the dual domain wall systems are integrable to all loop orders and for any value of the bond dimension. Title: Non-Invertible Symmetries and Higher-Categories One can add superpotentials, which lead to Seiberg-like dualities between plumbing graphs with triangles. Adrian, [Slides], Meng-Chwan Tan (National University of Singapore) We introduce a new idea, boundary averaging, to address the question: Does averaging also work well in AdS/BCFT? Abstract: This talk summarizes recent developments aimed towards F-theory constructions of MSSMs, i.e. Title:Plumbing graphs with matter http://jsfiddle.net/vol7ron/6cdfA/. Black Hole Entropy and the Problem of Universality [https://arxiv.org/abs/gr-qc/0702094]. Title: Calculating Quantum Knot Homology from Homological Mirror Symmetry Dear Peter, I believe you are cherry-picking parts of comments. Title: Category of QFTs and differential cohomology Rio de Janeiro, June 18th, 2021. Finally, I will discuss some applications. 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. String-Math 2021 conference (IMPA, Rio de Janeiro), [R = Review lecture] ; [D = Discussion session] ; [T = Research talk] ; [P = Public lecture] ; [S = Starting/Summary talks] ; [G = Gong-show talk]. If you cannot make it work with a default operator, I suggest you ask a new question, pointing out where exactly you get stuck. This is joint work with Constantin Teleman and Greg Moore. Once again, this is just an opinion. Based on 2103.10271, 2111.07663 and upcoming work. Odbya stae podoktorskie na uniwersytecie Humboldta w Berlinie oraz uniwersytecie w Princeton w USA, a nastpnie zostaa profesorem w cole Polytechnique Fdrale de Lausanne (EPFL) w Szwajcarii, gdzie od 2018 roku kieruje Katedr Teorii Liczb. Sorry, but deleted various attempts to carry on the experimentalist vs. theorist mudfight of Ellis_AND_Wooster/Andr. String Data 2020, CERN, December 2020. http://silentmatt.com/javascript-expression-evaluator/, http://www.codeproject.com/KB/scripting/jsexpressioneval.aspx, I spent a couple of hours to implement all the arithmetical rules without using eval() and finally I published a package on npm string-math. Is there a way to calculate a formula stored in a string in JavaScript without using eval()? Connect and share knowledge within a single location that is structured and easy to search. IMPA, Rio de Janeiro, June 14 - 18, 2021- Turned into an online eventSpeaker: Simon Donaldson (Imperial College)Lecture title: Calibrated geometry and gauge . Unfortunately I dont think Arkani-Hamed has any compelling argument against string theory implies landscape implies nothing to say about particle physics. 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. Abstract: Recently there has been lots of activity surrounding generalized notions of symmetry in quantum field theory, including categorical symmetries, higher symmetries, noninvertible symmetries, etc. Notes (with animations), Video. Green and Witten, recto and verso Result is the same as without the 'new'. I will describe how to bootstrap these perturbative corrections without computing actual Feynman integralsand present some preliminary results for pure N=1 gauge theory. 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. I believe I am not misguided. I wonder how to find the number of ternary strings that have at least one 0, one 1 and one 2. Equivalent plumbing graphs suggest dual theories. Even without LQG, there are many ideas on/in QG which are physically well founded. These symmetries vastly generalize the standard notion of global symmetries, and can be used in a similar way to obtain insights into strongly-coupled physical phenomena. Poor fool that I am, 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. T-duality then becomes a fibre-base duality of the threefold which allows us to compute the little-string-charges directly from the Kac labels of the dual gauge groups. Since its online only, talks are much more accessible than usual (and since its free, over 2000 people have registered to in principle participate via Zoom). LQG calculations claim to reproduce the semi-classical limit. Exactly because of this. Piotr Kucharski (University of Amsterdam) Ta strona wykorzystuje ciasteczka (cookies) w celu zapewnienia maksymalnej wygody w korzystaniu z naszego serwisu. Asking for help, clarification, or responding to other answers. Over-claim? There are many equivalent graphs that are related by Kirby moves which are interpreted as integrating out gauge nodes from the perspectives of 3d theories. Hello, Robert A. Wilson What video game is Charlie playing in Poker Face S01E07? The EMS prizes are always a good indication of future Fields medalists The corresponding Gopakumar-Vafa invariants provide a discrete refinement of the invariants associated to the smooth deformation. Solutions to this system describe compactifications of heterotic string theory with N=1 supersymmetry on a 7-dimensional manifold. Symmetries, Horizons, and Black Hole Entropy [https://arxiv.org/abs/0705.3024] What sort of strategies would a medieval military use against a fantasy giant? This community is indeed becoming like a religious cult, something one of the speakers explicitly denied. [Slides], Kasia Budzik (Perimeter Institute) [Slides], Elise LePage (University of California, Berkeley) We construct a trace map on the elliptic chiral homology of the free beta gamma-bc system using the BV quantization framework. In our examples we find agreement with the flux modularity conjecture of Kachru, Nally, and Yang. We revisit this construction, working directly in the setting of the holomorphically twisted theory and viewing the topological twists as further deformations. Well, that would be the case if people follow the hype for last 20-30 years or more. Institutode Matemtica Pura e Aplicada (IMPA), Organizers: Henrique Bursztyn (IMPA), Reimundo Heluani (IMPA), Marcos Jardim (IMECC-UNICAMP), Gonalo Oliveira (UFF). Thanks for allowing my last comment. Estrada Dona Castorina 110, Jardim Botnico Not all N = (0, 4) boundary conditions admit such deformations. 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. A place where magic is studied and practiced? Quantum gravity: String theory is a theory of quantum gravity because it attempts to merge quantum physics with the theory of general relativity. [Slides] [Video], Antoine Bourget (CEA Saclay) Matilde Marcolli [Slides], Pawe Ciosmak (IDEAS NCBiR) Talks are available for watching every day via Youtube, links are on the main page. Note also that I was making no comment about the work people were presenting at the conference, was sticking to discussing particular important points about the current state of the subject being made by the two most talented and hard-w0rking leaders of the field. I will present recent progress in this direction in the simplest case of local $P^2$, and argue that its global BPS spectrum and flow tree structure can be deduced from a scattering diagram with simple initial data. IMPA, Rio de Janeiro, June 14 - 18, 2021- Turned into an online eventSpeaker: Alba Grassi (CERN)Lecture title: Painlev equations, quantum operators and gaug. 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. The next String Math conference will take place on July 10-14, 2023, at the University of Melbourne in Australia. Marlborough School. This is a joint work with K. Ohmori (U. Tokyo). Abstract: Holographic tensor networks are discrete models of AdS/CFT that satisfy complementary recovery of quantum information and the Ryu-Takayanagi formula, which relates the boundary entanglement entropy to the area of extremal surfaces in the bulk. Abstract: Currently, there is a strong interest in the study of non-invertible symmetries of quantum field theories. These operators are interesting for several reasons: We provide new the structure that allows this, whose quantisation turns out to be lead to a multimatrix ensemble. The resulting quiver Yangians, together with their trigonometric and elliptic versions, unify various known results and generalize them to a much larger class. Their definition involves subtle boundary conditions. Title: Categorical Enumerative Invariants Sheldon Katz (University of Illinois) Title: Families of Modular Flux Vacua on Symmetric CY Threefolds [Slides] [Video], Dan Freed (University of Texas at Austin) Math 435 (Differential Geometry) Fall 2020. Abstract: The spectrum of BPS states in D=4 supersymmetric field theories and string vacua famously jumps across codimension-one walls in vector multiplet moduli space. Title: Towards F-theory MSSMs