Using the membrane model which is based on the brick-wall model, we have calculated the free energy and entropy of the Vaidya-Bonner black hole due to fermion fields. The result shows that the entropy of the Vaidya-Bo...Using the membrane model which is based on the brick-wall model, we have calculated the free energy and entropy of the Vaidya-Bonner black hole due to fermion fields. The result shows that the entropy of the Vaidya-Bonner black hole is exactly proportional to the area of its event horizon. The relationship between the entropy and event horizon in such a non-static case is just the same as that in a static or stationary cases.展开更多
Quantum cosmology with complexø6 fields at finite temperature for the Vilenkin boundary conditions and Hartle-Hawking boundary conditions has been studied in this paper.The corresponding Wheeler-DeWitt equations ...Quantum cosmology with complexø6 fields at finite temperature for the Vilenkin boundary conditions and Hartle-Hawking boundary conditions has been studied in this paper.The corresponding Wheeler-DeWitt equations and the Universe wave functions are obtained.At the same time,the probability density distribution is calculated and the effect of temperature on probability density distribution is found.展开更多
By utilizing the method of complex extension in this paper,the rotative axis symmetric solution in the Einstein-Maxwell-conformal scalar field theory is obtained.This solution contains four parameters:scalar charge,el...By utilizing the method of complex extension in this paper,the rotative axis symmetric solution in the Einstein-Maxwell-conformal scalar field theory is obtained.This solution contains four parameters:scalar charge,electric charge,magnetic charge and the one related with spherical rotation,and it is not a black hole solution.展开更多
This letter is devoted to the discussion of the Hawking radiation of Dirac particles in 1+1 dimensional space-time.The general nonstatic 1+1 dimensional metric is used to calculate the radiant spectrum and the express...This letter is devoted to the discussion of the Hawking radiation of Dirac particles in 1+1 dimensional space-time.The general nonstatic 1+1 dimensional metric is used to calculate the radiant spectrum and the expression of radiation temperature,which,as an example,verifies the quantum-mechanical instability in black hole due to Hawking radiation.展开更多
基金Supported by the National Natural Science Foundation of China under Grant Nos.19873013 and 10073006.
文摘Using the membrane model which is based on the brick-wall model, we have calculated the free energy and entropy of the Vaidya-Bonner black hole due to fermion fields. The result shows that the entropy of the Vaidya-Bonner black hole is exactly proportional to the area of its event horizon. The relationship between the entropy and event horizon in such a non-static case is just the same as that in a static or stationary cases.
基金Supported by the National Natural Science Foundation of China。
文摘Quantum cosmology with complexø6 fields at finite temperature for the Vilenkin boundary conditions and Hartle-Hawking boundary conditions has been studied in this paper.The corresponding Wheeler-DeWitt equations and the Universe wave functions are obtained.At the same time,the probability density distribution is calculated and the effect of temperature on probability density distribution is found.
文摘By utilizing the method of complex extension in this paper,the rotative axis symmetric solution in the Einstein-Maxwell-conformal scalar field theory is obtained.This solution contains four parameters:scalar charge,electric charge,magnetic charge and the one related with spherical rotation,and it is not a black hole solution.
基金Supported by the National Natural Science Foundation of China,and the Young Astronomer Laboratory of Shanghai Observatory.
文摘This letter is devoted to the discussion of the Hawking radiation of Dirac particles in 1+1 dimensional space-time.The general nonstatic 1+1 dimensional metric is used to calculate the radiant spectrum and the expression of radiation temperature,which,as an example,verifies the quantum-mechanical instability in black hole due to Hawking radiation.
