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arXiv quant-ph/0305138quant-phcond-mat
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广义分束器的单步精馏

Single-Step Distillation Protocol with Generalized Beam Splitters

M. A. Martin-Delgado, M. Navascues

摘要:

我们开发了一个多级量子位(qudits)的蒸馏协议,使用广义分束器,就像Pan等人的提议一样。当推广到qudits时,我们发现Bennet等人的方案有一个加速。也有可能提取携带轨道角动量(OAM)状态的纠缠光子对,这些状态保持最近实验中产生的总角动量。

英文摘要:

We develop a distillation protocol for multilevel qubits (qudits) using generalized beam splitters like in the proposal of Pan et al. for ordinary qubits. We find an acceleration with respect to the scheme of Bennet et al. when extended to qudits. It is also possible to distill entangled pairs of photons carrying orbital angular momenta (OAM) states that conserves the total angular momenta as those produced in recent experiments.

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