Quantum Monte Carlo Study on Magnetization Processes

Details Quantum Monte Carlo Study on Magnetization Processes Quantum Monte Carlo Study on Magnetization Processes

1999-03-25

arxiv.org/abs/cond-mat/9903375v2

J. Phys. Soc. Jpn. 68 (1999) 2547

Physics

Condensed Matter

Statistical Mechanics

5 pages, 9 figures; added references for section 1, corrected typos

Scientific paper

10.1143/JPSJ.68.2547

A quantum Monte Carlo method combining update of the loop algorithm with the global flip of the world line is proposed as an efficient method to study the magnetization process in an external field, which has been difficult because of inefficiency of the update of the total magnetization. The method is demonstrated in the one dimensional antiferromagnetic Heisenberg model and the trimer model. We attempted various other Monte Carlo algorithms to study systems in the external field and compared their efficiency.

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