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arXiv 2103.00089hep-thmath-phmath.MPquant-ph
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强量子引力测量下普朗克尺度下理想气体热力学

Thermodynamics of ideal gas at Planck scale with strong quantum gravity measurement

Latévi Mohamed Lawson

摘要:

最近在[J. Phys. A:Math. Theor. 53,115303(2020)],我们引入了一组非交换代数,它描述了普朗克尺度下的时空。我们发现,广义不确定原理导出了一个最大长度的量子引力,这与广义不确定原理导出的最小长度的量子引力具有不同的物理意义。这个理论中最大长度的出现揭示了在这个尺度下强烈的量子引力效应,并预测了低能量引力粒子的探测。为了证明这些预测,我们研究了在这个空间的一维无限方势阱中的自由粒子的动力学。由于该空间的量子引力效应很强,我们证明了该系统的能谱与没有引力理论的量子力学的普通能谱成弱比例关系。这种粒子的状态表现出类似于标准相干态的性质,这是在这个尺度上量子涨落的结果。然后,与该系统的光谱在手,我们分析的热力学量的正则和微正则系综的理想气体组成的$N$不可区分的粒子在普朗克尺度。结果显示两种统计描述之间完全一致。此外,在最小长度的情况下得到的结果和黑洞理论的比较表明,在这个理论中的最大长度诱导的变形参数的对数校正,这是一个强大的量子引力效应的后果。

英文摘要:

More recently in [J. Phys. A: Math. Theor. 53, 115303 (2020)], we have introduced a set of noncommutative algebra that describes the space-time at the Planck scale. The interesting significant result we found is that the generalized uncertainty principle induced a maximal length of quantum gravity which has different physical implications to the one of generalized uncertainty principle with minimal length. The emergence of a maximal length in this theory revealed strong quantum gravitational effects at this scale and predicted the detection of gravity particles with low energies. To make evidence of these predictions, we study the dynamics of a free particle confined in an infinite square well potential in one dimension of this space. Since the effects of quantum gravity are strong in this space, we show that the energy spectrum of this system is weakly proportional to the ordinary one of quantum mechanics free of the theory of gravity. The states of this particle exhibit proprieties similar to the standard coherent states which are consequences of quantum fluctuation at this scale. Then, with the spectrum of this system at hand, we analyze the thermodynamic quantities within the canonical and microcanonical ensembles of an ideal gas made up of $N$ indistinguishable particles at the Planck scale. The results show a complete consistency between both statistical descriptions. Furthermore, a comparison with the results obtained in the context of minimal length scenarios and black hole theories indicates that the maximal length in this theory induces logarithmic corrections of deformed parameters which are consequences of a strong quantum gravitational effect.

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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