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arXiv 0707.3422hep-phgr-qchep-th
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量子引力中的CPT与退相干

CPT and Decoherence in Quantum Gravity

Nikolaos E. Mavromatos

摘要:

在这篇综述中,我首先简要地讨论了在某些量子引力(QG)模型的背景下,场论系统潜在的洛伦兹破坏和偏离普通量子力学行为(退相干)的一些理论动机。这两种类型的影响导致CPT违反,但他们可以解开实验。然后,我继续描述CPT对称性的精确测试,使用中性和带电的K介子,这与本次会议的主题直接相关。我强调中性介子工厂在提供某些QG退相干模型的“确凿证据”方面的潜在独特作用,在这些模型中CPT量子力学算符没有很好地定义。这是通过潜在的观察QG引起的修改相关的爱因斯坦-波多尔斯基-罗森(EPR)粒子的相关性。

英文摘要:

In this review, I first discuss briefly some theoretical motivations for potential Lorentz Violation and deviation from ordinary quantum mechanical behavior (decoherence) of field theoretic systems in the background of some quantum gravity (QG) models. Both types of effects lead to CPT violation, but they can be disentangled experimentally. I, then, proceed to a description of precision tests of CPT symmetry using neutral and charged Kaons, which are of direct relevance to the main theme of this conference. I emphasize the potentially unique rôle of neutral meson factories in providing ``smoking-gun'' evidence of some QG-decoherence models in which the CPT quantum mechanical operator is not well defined. This is achieved by means of potential observations of QG-induced modifications of the pertinent Einstein-Podolsky-Rosen (EPR) particle correlations.

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