【学术视频】第九届量子多体系计算研讨会 | 中国人民大学李涛教授
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图 | 李涛
题 目：Is the spin-1/2 Kagome AFHM a gapful or a gapless spin liquid? and why it matters
报告人：李涛
单 位：中国人民大学
时 间：2019-04-21
地 点：中国人民大学
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报告提纲
Within the RVB description, the ground state of the NN-KAFH is a gapped Z2, rather than a U(1) Dirac spin liquid.
Very close RVB states can host very different spinon spectrum. Such a subtlety may imply the failure of the RVB theory, or the absence of a low energy effective field theory description of the system.
The NN-KAFHM belongs to a continuous family of fully frustrated models. Perturb the NN-KAFH within this fully frustrated space may enhance the spin gap and reinforce the gapped Z2 spin liquid state.
个人简介
李涛，1999年在北京大学物理学院获得凝聚态物理学博士学位；1999年至2001年在清华高等研究中心做博士后研究；2001年至2005年任清华大学高等研究中心副研究员；2005年至今，任中国人民大学教授。其研究兴趣包括高温超导微观机理的理论研究和低维强关联体系物理的基础理论研究。
会议简介
This workshop will focus on recent advances in the field of quantum many-body computation, including Monte Carlo methods, renormalization group and tensor network methods, machine learning, etc. It aims to provide young researchers and graduate students with introductory and updated research information, promote exchange of ideas and in-depth discussions, and enhance the interactions of researchers working in relevant areas.
主办方：中国人民大学物理系
●【学术视频】第九届量子多体系计算研讨会 | 郭文安：Random-Singlet Phase in Disordered Two-dimensional Quantum Magnets
●【学术视频】第九届量子多体系计算研讨会 | 丁文新：Dynamical t/U Expansion of a Doped Hubbard Model
●【学术视频】第九届量子多体系计算研讨会 | 李晓鹏：Quantum information scrambling with hard-core fermions
●【学术视频】第九届量子多体系计算研讨会 | Zi Cai：Dynamical universality in open quantum many-body systems
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