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arXiv 1310.6002quant-ph
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具有远程后选择和共享纠缠的弱值

Weak Values with Remote Postselection and Shared Entanglement

Arun Kumar Pati, Uttam Singh

摘要:

我们提出了一个新的协议,弱测量的任何可观察的远程前和后选择。我们证明,如果两个当事人共享一个纯纠缠态,然后通过使用本地操作和经典通信,他们可以预选和后选择在遥远的位置导致的弱值的观察作为移动的指针在一个位置的过程中的弱测量。这可以通过共享纯的最大或非最大纠缠态来实现。我们推广的协议,实现任何可观察的弱值与远程预和后选择的混合状态。最后,我们展示了如何修改弱值在远程前和后选择设置,如果爱丽丝和鲍勃共享一个混合纠缠态。

英文摘要:

We propose a new protocol for the weak measurement of any observable with remote pre and postselections. We show that if two parties share a pure entangled state, then by using local operations and classical communication they can preselect and postselect at distant locations leading to the weak value of an observable as a shift in the pointer of the apparatus at one location in the process of the weak measurement. This can be achieved with either sharing of a pure maximally or non-maximally entangled state. We generalize the protocol for realizing the weak value of any observable with remote pre and postselection of mixed states. Finally, we show how the weak value is modified in the remote pre and postselection setting if Alice and Bob share a mixed entangled state.

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。

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