摘要
We consider a large quantum system with spins 12 whose dynamics is driven entirely by measurements of the total spin of spin pairs. This gives rise to a dissipative coupling to the environment. When one averages over the measurement results, the corresponding real-time path integral does not suffer from a sign problem. Using an efficient cluster algorithm, we study the real-time evolution from an initial antiferromagnetic state of the two-dimensional Heisenberg model, which is driven to a disordered phase, not by a Hamiltonian, but by sporadic measurements or by continuous Lindblad evolution.
原文 | 英語 |
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文章編號 | 241104 |
期刊 | Physical Review B - Condensed Matter and Materials Physics |
卷 | 90 |
發行號 | 24 |
DOIs | |
出版狀態 | 已發佈 - 2014 12月 2 |
ASJC Scopus subject areas
- 電子、光磁材料
- 凝聚態物理學