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arXiv 0904.1272gr-qc
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作为引力物理模型的量子真空的超弱激发

Ultraweak excitations of the quantum vacuum as physical models of gravity

M. Consoli

摘要:

有几位作者认为,在引力场中观察到的时空曲率,以及与洛伦兹群不同的物理等价形式的相同思想,可能来自于在适当的流体动力学极限下的物理平空间真空的动力学性质。为了探索这个想法,我们可以先将物理真空表示为基本量子的玻色凝聚,然后寻找在粗粒度尺度上类似于牛顿势的真空激发。这样,就比较容易达到经典广义相对论或它的某些可能变体的弱场极限。玻色凝聚可以提供各种形式的引力动力学的想法并不新鲜。在这里,我想强调一些真正的量子场论方面,可以帮助理解i)为什么无限弱的1/r相互作用确实可以从电弱和强相互作用的相同物理真空中产生,ii)为什么在粗粒度尺度上,它们的动力学效应可以被重新吸收到有效的弯曲度规结构中。

英文摘要:

It has been argued by several authors that the space-time curvature observed in gravitational fields, and the same idea of forms of physical equivalence different from the Lorentz group, might emerge from the dynamical properties of the physical flat-space vacuum in a suitable hydrodynamic limit. To explore this idea, one could start by representing the physical vacuum as a Bose condensate of elementary quanta and look for vacuum excitations that, on a coarse grained scale, resemble the Newtonian potential. In this way, it is relatively easy to match the weak-field limit of classical General Relativity or of some of its possible variants. The idea that Bose condensates can provide various forms of gravitational dynamics is not new. Here, I want to emphasize some genuine quantum field theoretical aspects that can help to understand i) why infinitesimally weak, 1/r interactions can indeed arise from the same physical vacuum of electroweak and strong interactions and ii) why, on a coarse-grained scale, their dynamical effects can be re-absorbed into an effective curved metric structure.

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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