【学术视频】第九届量子多体系计算研讨会 | Pochung Chen

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图 | Pochung Chen教授

题   目：Crossover of Correlation Functions near a Quantum Impurity in a Tomonaga-Luttinger Liquid

报告人：Pochung Chen

单   位：National Tsing Hua University

时   间：2019-04-20

地   点：中国人民大学

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报告提纲

• Impurity in a Tomonage-Luttinger Liquid

  -Finite window IMPS with infinite boundary condiyion (IBCs).
  

• Spin-1/2 XXZ (Spiniess fermion)

  -<S⁺_-rS^-_+r>, <S^z_-rS^z_+r>, <J_-rJ_+r>correlation functions.

  -Confirm fixed points: g>1(heal) and g<1(broken).

  -Crossover of correlation functions from UV to IR.

• Y-Junction (Spiniess fermion)

  -Identify the g dependence of the M fixed point.

  -Identify the controversial D_p fixed pint.

• Further generalization & applications:

  -Finite bias, finite temperature.

  -Spinful fermion, Majorana fermion, etc.

个人简介

Prof. Pochung Chen , National Tsing Hua University. Research: Condensed matter physics.

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.

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