Supported by National Natural Science Foundation of China under Grant Nos.11275207 and 11690022
The Hamiltonian analysis for a 3-dimensional connection dynamics of o(1, 2), spanned by {L-+, L-2, L+2) instead of {Lol, L02, L12}, is first conducted in a Bondi-like coordinate system. The symmetry of the system...
Supported in part by the Ph.D.Programs Foundation of Ministry of Education of China under Grant No.20110184110016;the National Basic Research Program of China(973 Program) Grant No.2013CB328904;the Fundamental Research Funds for the Central Universities under Grant No.2682014ZT32
Hawking radiation is usually studied in standard coordinates. In this paper,we calculate the Hawking temperature of a Schwarzschild black hole in harmonic coordinates,as well as that of a Reissner–Nordstr?m black hol...
Supported by the Program for New Century Excellent Talents in University under Grant No.NCET-10-0702;the National Basic Research Program of China(973 Program)under Grant No.2013CB328904;the Ph.D.Programs Foundation of Ministry of Education of China under Grant No.20110184110016
The harmonic metric for Schwarzschild black hole with a uniform velocity is presented. In the limit of weak field and low velocity, this metric reduces to the post-Newtonian approximation for one moving point mass. As...
supported by National Natural Science Foundation of China under Grant No.10773008
In the light of Robinson and Wilczek's new idea,and motivated by Banerjee and Kulkarni's simplified method of using only the covariant anomaly to derive Hawking radiation from a black hole,we generally extend the work...
The project supported by National Natural Science Foundation of China under Grant No. 10272021 and the Natural Science Foundation of High Education Department of Jiangsu Province under Grant No. 04KJA130135
This paper focuses on studying the relation between a velocity-dependent symmetry and a generalized Lutzky conserved quantity for a holonomic system with remainder coordinates subjected to unilateral constraints. The ...
This article revisits Feynman's characteristic function, and points out the insight and usefulness of hisphysical interpretation. As an example, the tedious and rather long derivation of the propagator in polar coordi...
Dirac's method which itself is for constrained Boson fields and particle systems is followed and developed to treat Dirac fields in light-front coordinates.