We show that the study of the hidden conformal symmetry that is associated with the Kerr/CFT correspondence can also apply to the cosmological horizon in the Kerr-Newman-Taub-NUT-de Sitter spacetime.This symmetry allo...We show that the study of the hidden conformal symmetry that is associated with the Kerr/CFT correspondence can also apply to the cosmological horizon in the Kerr-Newman-Taub-NUT-de Sitter spacetime.This symmetry allows employing some two dimensional conformal field theory methods to understand the properties of the cosmological horizon.The entropy can be understood by using the Cardy formula,and the equation for the scattering process in the near region is in agreement with that obtained from a two point function in the two-dimensional conformal field theory.We also show that pair production can occur near the cosmological horizon in Kerr-Newman-Taub-NUT-de Sitter for near extremal conditions.展开更多
By using dressing actions of the G(n1,n-1)1,1-system, the authors study geometric transformations for flat time-like n-submanifolds with flat, non-degenerate normal bundle in anti-de Sitter space H1(2n-1)(-1), where G...By using dressing actions of the G(n1,n-1)1,1-system, the authors study geometric transformations for flat time-like n-submanifolds with flat, non-degenerate normal bundle in anti-de Sitter space H1(2n-1)(-1), where G(n-1,n-1)1,1 = O(2n - 2, 2)/O(n - 1,1)×O(n-1, 1).展开更多
基金Supported by LPPM UNPAR under contract no.III/LPPM/2022-02/79-P。
文摘We show that the study of the hidden conformal symmetry that is associated with the Kerr/CFT correspondence can also apply to the cosmological horizon in the Kerr-Newman-Taub-NUT-de Sitter spacetime.This symmetry allows employing some two dimensional conformal field theory methods to understand the properties of the cosmological horizon.The entropy can be understood by using the Cardy formula,and the equation for the scattering process in the near region is in agreement with that obtained from a two point function in the two-dimensional conformal field theory.We also show that pair production can occur near the cosmological horizon in Kerr-Newman-Taub-NUT-de Sitter for near extremal conditions.
基金Project supported supported by the 973 Project of the Ministry of Science and Technology of Chinathe National Natural Science Foundation of China (No. 10301030).
文摘By using dressing actions of the G(n1,n-1)1,1-system, the authors study geometric transformations for flat time-like n-submanifolds with flat, non-degenerate normal bundle in anti-de Sitter space H1(2n-1)(-1), where G(n-1,n-1)1,1 = O(2n - 2, 2)/O(n - 1,1)×O(n-1, 1).
