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arXiv 0810.3211quant-ph
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有限维量子仪器的实现方案

Realization schemes for quantum instruments in finite dimensions

Giulio Chiribella, Giacomo Mauro D'Ariano, Paolo Perinotti

摘要:

我们提出了一个一般的膨胀方案的量子仪器连续的结果空间在有限维的,在有限维的附属物上进行的间接POVM测量。一般的结果,然后应用到一个大类的工具所产生的运营商框架,其中包含组协变的仪器作为一个特定的情况下,并允许构造膨胀方案的基础上测量的辅助,然后由一个有条件的前馈操作的输出。在紧算符框架的情况下,我们的构造推广了量子隐形传态和远程克隆,产生了一个广义的隐形传态方案,其中仪器是通过在发送端的联合POVM结合在接收端的条件前馈操作来实现的。

英文摘要:

We present a general dilation scheme for quantum instruments with continuous outcome space in finite dimensions, in terms of an indirect POVM measurement performed on a finite dimensional ancilla. The general result is then applied to a large class of instruments generated by operator frames, which contains group-covariant instruments as a particular case, and allows to construct dilation schemes based on a measurement on the ancilla followed by a conditional feed-forward operation on the output. In the case of tight operator frames our construction generalizes quantum teleportation and telecloning, producing a whole family of generalized teleportation schemes in which the instrument is realized via a joint POVM at the sender combined with a conditional feed-forward operation at the receiver.

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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