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arXiv 1101.4181hep-thgr-qchep-phquant-ph
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量子引力中的最小长度、等效原理和全息熵界

Minimal Length in Quantum Gravity, Equivalence Principle and Holographic Entropy Bound

Ahmed Farag Ali

摘要:

在中子干涉测量实验和量子力学之间发现了一个可能的差异。这个实验表明,弱等效原理在小尺度下被违反,这是量子力学无法解释的。本文研究了弦理论和双狭义相对论(DSR)等量子引力方法提出的广义不确定原理(GUP)能否解释小尺度下弱等效原理的破坏。我们还研究了GUP对统计力学中刘维尔定理的影响。我们发现了一种新的形式的不变相空间中存在的GUP。这一结果应修改的密度态和影响的计算熵的限制的局域量子场论,宇宙学常数,黑体辐射等,此外,这种修改可能有可观察到的后果,在长度尺度远大于普朗克尺度。这种修正导致了对玻色子场最大熵界的\sqrt{A}型修正,这无疑会对全息理论有所启发。

英文摘要:

A possible discrepancy has been found between the results of a neutron interferometry experiment and Quantum Mechanics. This experiment suggests that the weak equivalence principle is violated at small length scales, which quantum mechanics cannot explain. In this paper, we investigated whether the Generalized Uncertainty Principle (GUP), proposed by some approaches to quantum gravity such as String Theory and Doubly Special Relativity Theories (DSR), can explain the violation of the weak equivalence principle at small length scales. We also investigated the consequences of the GUP on the Liouville theorem in statistical mechanics. We have found a new form of invariant phase space in the presence of GUP. This result should modify the density states and affect the calculation of the entropy bound of local quantum field theory, the cosmological constant, black body radiation, etc. Furthermore, such modification may have observable consequences at length scales much larger than the Planck scale. This modification leads to a \sqrt{A}-type correction to the bound of the maximal entropy of a bosonic field which would definitely shed some light on the holographic theory.

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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