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arXiv quant-ph/0301096quant-ph
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渐进退相干与环境整体解纠缠

Progressive Decoherence and Total Environmental Disentanglement

Lajos Diosi

摘要:

从环境纠缠的角度讨论了两态量子系统的简单定态退相干。我的工作强调,一个无条件的局域态必须完全脱离宇宙的其余部分。长期以来人们都知道,特定地方系统内的一致性是逐渐丧失的。此外,局域系统和宇宙其余部分之间的量子关联也在逐渐被破坏。我表明,不同于本地退相干,环境解纠缠的过程可能会在有限的时间内终止。完全退纠缠的时间是在退相干时间尺度上,在一个简单的情况下,我们确定它的确切值。

英文摘要:

The simple stationary decoherence of a two-state quantum system is discussed from a new viewpoint of environmental entanglement. My work emphasizes that an unconditional local state must totally be disentangled from the rest of the universe. It has been known for long that the loss of coherence within the given local system is gradual. Also the quantum correlations between the local system and the rest of the universe are being destroyed gradually. I show that, differently from local decoherence, the process of environmental disentanglement may terminate in finite time. The time of perfect disentanglement turns out to be on the decoherence time scale, and in a simple case we determine the exact value of it.

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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