arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv quant-ph/0403130quant-phcond-mat.mes-hall
收藏

量子系统的时间反转镜

Towards a time-reversal mirror for quantum systems

Horacio M. Pastawski, Ernesto P. Danieli, Hernan L. Calvo, Luis E. F. Foa Torres

摘要:

在核磁共振极化回波实验中,通过改变哈密顿量的符号,可以实现量子态时间演化的反转。在这项工作中,我们描述了一种替代机制的启发声时间反转镜。通过求解离散空间中的逆时间问题,我们提出了一种新的方法,即完美逆滤波器。它通过在给定区域的外围重新注入一个指定的波函数来实现精确的时间反演。

英文摘要:

The reversion of the time evolution of a quantum state can be achieved by changing the sign of the Hamiltonian as in the polarization echo experiment in NMR. In this work we describe an alternative mechanism inspired by the acoustic time reversal mirror. By solving the inverse time problem in a discrete space we develop a new procedure, the perfect inverse filter. It achieves the exact time reversion in a given region by reinjecting a prescribed wave function at its periphery.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑