Quantum Monte Carlo study on quantum magnets and bosonic gases coupled to a cavity field based on multidiscontinuity algorithm

2017 Fiscal Year Final Research Report

• Project/Area Number: 26800199
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Condensed matter physics II
• Research Institution: The University of Tokyo (2015-2017); The Institute of Physical and Chemical Research (2014)
• Principal Investigator: Kato Yasuyuki 東京大学, 大学院工学系研究科(工学部), 助教 (50708534)
• Project Period (FY): 2014-04-01 – 2018-03-31
• Keywords: 量子スピン系 / 量子モンテカルロ法 / 量子スピン液体 / スピン軌道相互作用 / 電気磁気効果

Outline of Final Research Achievements

We employ the world-line quantum Monte-Carlo (QMC) method for quantum many body systems. The QMC method has been widely used since it obtained numerically unbiased exact solution of theoretical models including many body interactions. In addition to QMC method, we also employ other methods (e.g., the mean-field theory, the perturbation theory, the exact diagonalization method) to investigate topics under intense study such as multicomponent ultracold atomic gases, quantum spin liquids, chiral soliton lattice. As a result, we have obtained new insights on these topics.

Free Research Field

物性II