Chin. Phys. Lett.  2005, Vol. 22 Issue (9): 2154-2156    DOI:
Original Articles |
Surface Gravity on the Horizon of η-ξ Spacetime
LI Zi-Jing;GUI Yuan-Xing;ZHANG Su-Hong;YU Hong
Department of Physics, Dalian University of Technology, Dalian 116024
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LI Zi-Jing, GUI Yuan-Xing, ZHANG Su-Hong et al  2005 Chin. Phys. Lett. 22 2154-2156
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Abstract We investigate the two methods of defining the surface gravity k on the horizon, which are the metric definition and the definition given by the spacetime conformal method. It is found that the latter is of greater generality. By this method, we find that k of η-ξ spacetime is equal to the exponent factor α in the coordinate transformation, which confirms the argument that η-ξ spacetime can be considered as the background spacetime for finite-temperature field theories. The reasons why the metric definition of k can not be applied in η-ξ spacetime are presented.
Keywords: 03.70.+k      04.70.Dy      02.40.Re     
Published: 01 September 2005
PACS:  03.70.+k (Theory of quantized fields)  
  04.70.Dy (Quantum aspects of black holes, evaporation, thermodynamics)  
  02.40.Re (Algebraic topology)  
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