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arXiv 1502.03108hep-thmath.RT
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三维空间中BMS群的特征

Characters of the BMS Group in Three Dimensions

Blagoje Oblak

摘要:

使用Frobenius公式,我们评估字符与中央扩展BMS $_3$组的某些诱导表示。这个计算涉及到Virasoro群的余伴随轨道上的泛函积分; δ函数将积分定位到单个点,使我们能够获得精确的结果。后者是独立的具体形式的功能措施,并适用于所有的BMS $_3$中心荷值和所有值的选定的质量和自旋。它也可以恢复为Virasoro字符的平坦限制。

英文摘要:

Using the Frobenius formula, we evaluate characters associated with certain induced representations of the centrally extended BMS$_3$ group. This computation involves a functional integral over a coadjoint orbit of the Virasoro group; a delta function localizes the integral to a single point, allowing us to obtain an exact result. The latter is independent of the specific form of the functional measure, and holds for all values of the BMS$_3$ central charges and all values of the chosen mass and spin. It can also be recovered as a flat limit of Virasoro characters.

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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