自旋系统纠缠保持的反对称性考虑
Anti-symmetry consideration on the preservation of Entanglement of spin system
摘要：
在这项工作中，我们提供了一种基于汉密尔顿的反对称性来保护纠缠的方法。我们的主要目标是在依赖于位置的横场中，保护由三自旋伊辛链的哈密顿量控制的给定初始三量子比特态的纠缠。我们发现，根据反对称性质的哈密尔顿关于一些运营商模仿的时间反演运营商，系统的动力学可以有效地逆转。它使我们能够控制系统的动态。控制过程被实现为一个循环演化序列，因此，在任何给定的初始状态下，系统的纠缠都可以得到长时间的保护。利用这种方法，我们不仅可以控制多方纠缠，而且可以控制两两纠缠。同样值得注意的是，在本文中，虽然我们主要限制在一个三自旋伊辛链在站点相关的横向领域，我们的方法可以适用于任何n-量子位自旋系统模型。
英文摘要：
In this work we offer an approach to protect the entanglement based on the anti-symmetric property of the hamiltonian. Our main objective is to protect the entanglement of a given initial three-qubit state which is governed by hamiltonian of a three-spin Ising chain in site-dependent transverse fields. We show that according to anti-symmetric property of the hamiltonian with respect to some operators mimicking the time reversal operator, the dynamics of the system can be effectively reversed. It equips us to control the dynamics of the system. The control procedure is implemented as a sequence of cyclic evolution; accordingly the entanglement of the system is protected for any given initial state with any desired accuracy an long-time. Using this approach we could control not only the multiparty entanglement but also the pairwise entanglement. It is also notable that in this paper although we restrict ourselves mostly within a three-spin Ising chain in site-dependent transverse fields, our approach could be applicable to any n-qubit spin system models.
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。
