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arXiv quant-ph/0407021quant-ph
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量子通信中的误差过滤和纠缠纯化

Error Filtration and Entanglement Purification for Quantum Communication

N. Gisin, N. Linden, S. Massar, S. Popescu

摘要:

导致量子信息处理这一新领域出现的关键认识是,描述微观粒子的量子力学允许以全新的方式处理信息。但正如经典信息处理中一样,量子信息处理中也会出现错误,这些错误必须得到纠正。一个根本性的突破是认识到量子纠错实际上是可能的。然而,到目前为止,大多数工作并不关心技术的可行性,而是证明量子纠错在原则上是可能的。在这里,我们描述了一种特别适合于量子通信的错误过滤和纠缠纯化的方法。我们的方法在概念上是新的,而且,至关重要的是,它很容易实现在各种各样的物理系统与当今的技术,因此应具有广泛的适用性。

英文摘要:

The key realisation which lead to the emergence of the new field of quantum information processing is that quantum mechanics, the theory that describes microscopic particles, allows the processing of information in fundamentally new ways. But just as in classical information processing, errors occur in quantum information processing, and these have to be corrected. A fundamental breakthrough was the realisation that quantum error correction is in fact possible. However most work so far has not been concerned with technological feasibility, but rather with proving that quantum error correction is possible in principle. Here we describe a method for filtering out errors and entanglement purification which is particularly suitable for quantum communication. Our method is conceptually new, and, crucially, it is easy to implement in a wide variety of physical systems with present day technology and should therefore be of wide applicability.

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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