A new metric depending on five arbitrary parameters is obtained by the method of complex coordinate transformations.It gives the gravitational field of a mass source with both arbitrary acceleration and rotation.
The back reaction of evaporating black holes with internal global monopoles is studied by examining the Klein-Gordon equation near the event horizon and computing the renormalized expectation value of the stress-energ...The back reaction of evaporating black holes with internal global monopoles is studied by examining the Klein-Gordon equation near the event horizon and computing the renormalized expectation value of the stress-energy tensor for conformally invariant massless scalar fields in two dimensions.The effective radiation temperature up to O(m)is found.展开更多
By means of the orthonormal frame,the motion of the axis of a gyroscope freely falling along the radial geodesic in the space-time of a black hole with a global monopole is investigated.It is shown that the axis of th...By means of the orthonormal frame,the motion of the axis of a gyroscope freely falling along the radial geodesic in the space-time of a black hole with a global monopole is investigated.It is shown that the axis of the gyroscope rotates about the radial direction as it falls into the black hole.展开更多
文摘A new metric depending on five arbitrary parameters is obtained by the method of complex coordinate transformations.It gives the gravitational field of a mass source with both arbitrary acceleration and rotation.
文摘The back reaction of evaporating black holes with internal global monopoles is studied by examining the Klein-Gordon equation near the event horizon and computing the renormalized expectation value of the stress-energy tensor for conformally invariant massless scalar fields in two dimensions.The effective radiation temperature up to O(m)is found.
基金Supported by the National Natural Science Foundation of China.
文摘By means of the orthonormal frame,the motion of the axis of a gyroscope freely falling along the radial geodesic in the space-time of a black hole with a global monopole is investigated.It is shown that the axis of the gyroscope rotates about the radial direction as it falls into the black hole.