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Yoshimasa Hidaka (YITP)6/29/26, 10:00 AM
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Chenjie Wang (The University of Hong Kong)6/29/26, 1:30 PM
I will present a construction of a family of 1D quantum lattice models with unitary fusion category symmetry. These models generalize the well-known anyon chain construction and can be viewed as edge theories of 2D symmetry-enriched topological states. They realize a variety of interesting phases, including gapless critical phases and phases with spontaneously broken categorical symmetries. A...
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Liujun Zou (National University of Singapore)6/29/26, 3:30 PM
Mutual information (MI) and conditional mutual information (CMI) are central tools to characterize the correlation and entanglement in quantum systems. However, their universal properties in quantum many-body systems were poorly understood before. In this talk, I will present our recent rigorous results on the universal properties of MI and CMI in gapped quantum matter, and discuss their...
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Jong Yeon Lee (University of Illinois Urbana-Champaign)6/30/26, 10:00 AM
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Jung Hoon Han (Sungkyunkwan University)6/30/26, 1:30 PM
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Seishiro Ono (ISSP)6/30/26, 3:30 PM
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Shuhei Ohyama (RIKEN)6/30/26, 4:00 PM
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Peng Ye (Sun Yat-sen University)7/1/26, 10:00 AM
Topological orders in three spatial dimensions and beyond can support spatially extended excitations, such as loops and membranes. These excitations give rise to exotic topological phenomena that have no direct counterparts in two-dimensional anyon systems. In this talk, I will give an overview of recent progress on higher-dimensional topological order, with a focus on continuum topological...
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Simeon Hellerman (Kavli IPMU)7/1/26, 1:30 PM
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Naoki Yamamoto (Keio University)7/1/26, 3:30 PM
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Kazuya Yonekura (Tohoku University)7/2/26, 10:00 AM
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Zhicheng Yang (Peking University)7/2/26, 1:30 PM
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Meng Cheng (Yale University)7/3/26, 10:00 AM
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Nick Poovuttikul (Chulalongkorn University)7/3/26, 1:30 PM
I will give a brief overview on the method on how to extract the the anomaly induced transport coefficients of finite temperature/density QFT starting from the bordism group and mapping torus that governed its global anomaly. After that, I will focus on the puzzling case of SU(2) anomaly where the anomaly matching forbid a naive analytic continuation of DC conductivities and enforce nontrivial...
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Han Yan (The University of Tokyo)7/3/26, 3:30 PM
Quantum error-correcting codes (QECs) are essential components of quantum computation and have deep connections to quantum phases of matter. A key obstruction to passive self-correcting QECs is the presence of string logical operators, which can generate logical errors through constant-energy-barrier processes. Haah's Codes (fracton codes) showed that three-dimensional stabilizer codes can...
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Masaru Hongo (Niigata Universiity)7/6/26, 10:00 AM
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Chang-Tse Hsieh (National Taiwan University)7/6/26, 1:30 PM
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Kantaro Ohmori (RIKEN iTHEMS)7/7/26, 10:00 AM
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Haruki Watanabe (The Hong Kong University of Science and Technology)7/7/26, 1:30 PM
The classification of phases of matter at finite temperature has traditionally rested on Landau's paradigm of spontaneous symmetry breaking and local order parameters. At absolute zero, this paradigm has been decisively enlarged over the past decades: topologically ordered and symmetry-protected topological phases sharply distinguish ground states that share exactly the same symmetries. Most...
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Yasuhiro Tada (Hiroshima University)7/7/26, 3:30 PM
We study gaplessness in one-dimensional quantum many-body systems with U(1) and translation symmetries under Lieb–Schultz–Mattis (LSM)–type constraints. While the LSM theorem imposes strong restrictions on the low-energy spectrum, the relation between charge- and neutral-excitations remains nontrivial in general interacting systems.
In this work, we show that, under physically reasonable...
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Yu Zhao (Fudan University)7/7/26, 4:00 PM
The critical behaviour at a second-order phase transition is often described by a conformal field theory. The restrictions imposed by conformal symmetry give rise to a number of important theoretical techniques that have made these theories central to the understanding of critical phenomena. However, efforts to classify conformal field theories have run into the challenge of identifying...
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Koichi Hattori (Zhejiang University)7/8/26, 10:00 AM
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Jing-Yuan Chen (Institute for Advanced Study Tsinghua University)7/8/26, 1:30 PM
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Gil Young Cho (KAIST)7/9/26, 10:00 AM
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Yuji Hirono (Tsukuba University)7/9/26, 1:30 PM
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Dung Nguyen (Institute For Interdisciplinary Research in Science and Education, Quy Nhon, Vietnam)7/10/26, 10:00 AM
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7/10/26, 1:30 PM
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Wen-Tao Xu (Xi'an Jiaotong University)
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