论文标题
用于封闭系统的变异描述的量子轨迹:与高斯州的案例研究
Quantum trajectories for the variational description of closed systems: a case study with Gaussian states
论文作者
论文摘要
建议通过添加减少纠缠的虚构耗散来提高封闭量子系统的变分描述的质量。该提案是针对小型玻色扣链实施的,该链显示了混乱的行为和相关的量子波动的快速增长。对于适当选择的耗散,发现与截断的Wigner近似(对于所选系统参数非常准确)的良好一致性。
It is proposed to improve the quality of a variational description of a closed quantum system by adding ficticious dissipation that reduces the entanglement. The proposal is implemented for a small Bose-Hubbard chain, which shows chaotic behavior and associated fast growth of quantum fluctuations. For appropriately chosen dissipation, good agreement with the truncated Wigner approximation (which is very accurate for the chosen system parameters) is found.