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arXiv 0709.4619gr-qc
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圈量子引力的规范不变相干态I:阿贝尔规范群

Gauge-invariant coherent states for Loop Quantum Gravity I: Abelian gauge groups

Benjamin Bahr, Thomas Thiemann

摘要:

本文研究了环量子引力中规范群U(1)的规范不变相干态的性质。这是通过投影相应的络合剂相干态,这已被应用在许多场合调查的半经典极限的运动部门,规范不变的希尔伯特空间。这是构造物理相干态的第一步,我们得到了一组规范不变态,它们很好地逼近了阿贝尔LQG的规范不变自由度。此外,这些国家原来编码的图形拓扑结构的显式信息,并显示出相同的愉快的peakedness属性已知的规范变量复杂相干态。

英文摘要:

In this paper we investigate the properties of gauge-invariant coherent states for Loop Quantum Gravity, for the gauge group U(1). This is done by projecting the corresponding complexifier coherent states, which have been applied in numerous occasions to investigate the semiclassical limit of the kinematical sector, to the gauge-invariant Hilbert space. This being the first step to construct physical coherent states, we arrive at a set of gauge-invariant states that approximate well the gauge-invariant degrees of freedom of abelian LQG. Furthermore, these states turn out to encode explicit information about the graph topology, and show the same pleasant peakedness properties known from the gauge-variant complexifier coherent states.

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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