中文

AdS$_4$引力的手征${\Lambda}$-$\mathfrak{bms}_4$对称性

高能物理 - 理论 2024-11-26 v3 数学物理 math.MP

摘要

R1,3\mathbb{R}^{1,3}引力的手征边界条件推广到AdS4_4引力,我们导出了Newman-Unti规范下手征的局部AdS4_4解,其变分原理一致,并证明其行为渐近对称代数,是so(2,3)\mathfrak{so}(2,3)的无限维手征扩张。该对称代数在平直空间极限下与手征bms4\mathfrak{bms}_4代数一致。我们提出此对称代数作为最近发现的Λ\Lambda-bms4\mathfrak{bms}_4代数的手征版本。我们由体AdS4_4引力对应此手征对称代数假设了线积分荷,并证明这些荷服从包含层级κ\kappa Kac-Moody sl(2,R)\mathfrak{sl}(2,\mathbb{R})流代数的W\mathcal{W}-代数的半经典极限。此外,利用2d2d CFT的标准工具,我们导出了此W\mathcal{W}-代数的量子版本,可记为W(2;(3/2)2,13)\mathcal{W}(2;(3/2)^2,1^3)

关键词

引用

@article{arxiv.2211.13176,
  title  = {A Chiral ${\Lambda}$-$\mathfrak{bms}_4$ Symmetry of AdS$_4$ Gravity},
  author = {Nishant Gupta and Nemani V. Suryanarayana},
  journal= {arXiv preprint arXiv:2211.13176},
  year   = {2024}
}

备注

34 pages. v3: Accepted for publication in Nuclear Phys.B. References added, minor changes in Introduction and Conclusions. v2: The title has been changed to reflect better the content of the paper. The manuscript has been revised to add the section on the derivation of $\mathcal{W}$-algebra from AdS$_4$ gravity. Elaborated introduction. References added