One-way Transfer of Quantum States via Decoherence
作者: Yuichiro MatsuzakiVictor M. BastidasYuki TakeuchiWilliam J. MunroShiro Saito
刊名: Journal of the Physical Society of Japan, 2020, Vol.89 (4)
来源数据库: The physical Society of Japan
DOI: 10.7566/JPSJ.89.044003
原始语种摘要: In many quantum information processing applications, it is important to be able to transfer a quantum state from one location to another — even within a local device. Typical approaches to implement the quantum state transfer rely on unitary evolutions or measurement feedforward operations. However, these existing schemes require many accurate pulse operations and/or precise timing controls. Here, we propose a one-way transfer of the quantum state with near unit efficiency using dissipation from a tailored environment. After preparing an initial state, the transfer can be implemented without external time dependent operations. Moreover, our scheme is irreversible due to the non-unitary evolution, and so the transferred state remains in the same site once the system reaches the steady...
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  • state 状态
  • irreversible 不可逆的
  • transfer 转换
  • quantum 量子
  • control 控制
  • information 报告
  • implement 执行
  • external 外部的
  • feedforward 正反馈
  • Transfer 转运牌汽车