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arXiv 1609.09210hep-th
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广义超对称BMS $_3$代数及其自由场实现

Extended Supersymmetric BMS$_3$ algebras and Their Free Field Realisations

Nabamita Banerjee, Dileep P. Jatkar, Ivano Lodato, Sunil Mukhi, Turmoli Neogi

摘要:

研究了三维BMS代数(BMS $_3$)的具有最一般可能中心扩张的$N=(2,4,8)$超对称扩张.我们发现,$N$ -扩张超对称BMS $_3$代数可以通过适当地收缩扩张超共形代数的两个副本而得到。通过对称地标度左移和右移超对称生成元,而Virasoro和R-对称生成元是不对称标度的,得到了所有相容压缩的扩展代数。在此过程中,我们发现BMS/GCA对应一般不适用于超对称系统。利用$β$ - $γ$和${\mathfrak b}$ - ${\mathfrak c}$系统,我们构造了所有扩展的超BMS $_3$代数的自由场实现.

英文摘要:

We study $N=(2,4,8)$ supersymmetric extensions of the three dimensional BMS algebra (BMS$_3$) with most generic possible central extensions. We find that $N$-extended supersymmetric BMS$_3$ algebras can be derived by a suitable contraction of two copies of the extended superconformal algebras. Extended algebras from all the consistent contractions are obtained by scaling left-moving and right-moving supersymmetry generators symmetrically, while Virasoro and R-symmetry generators are scaled asymmetrically. On the way, we find that the BMS/GCA correspondence does not in general hold for supersymmetric systems. Using the $β$-$γ$ and the ${\mathfrak b}$-${\mathfrak c}$ systems, we construct free field realisations of all the extended super-BMS$_3$ algebras.

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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