Symmetry reduction on non-expanding horizons

7th International Conference on Gravitation and Cosmology

Basu, R.^1 ; Chatterjee, A.^2 ; Ghosh, A.^3

S.N. Bose National Centre for Basic Sciences, Salt Lake, Kolkata 700098, India^1

Institute of Mathematical Sceinces, CIT Campus, Taramani, Chennai 600113, India^2

Saha Institute of Nuclear Physics, Bidhannagar, Kolkata 700064, India^3

关键词: Effective theories;    Local symmetry;    Lorentz group;    Symmetry reduction;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/484/1/012010/pdf
DOI  :  10.1088/1742-6596/484/1/012010

来源: IOP

【 摘 要 】

Local symmetries of a non-expanding horizon have been investigated in the 1st order formulation of gravity. When applied to a spherically symmetric horizons, only a U(1) subgroup of the Lorentz group survives as residual local symmetry that one can make use of in constructing an effective theory on the horizon.