Hawking radiation of black p-branes via gauge and gravitational anomalies
نویسنده
چکیده
We investigate the Hawking radiation of black p-branes in superstring theories through the method of anomaly cancelation proposed by Robinson andWilczec et al. The metrics of black p-branes are spherically symmetric, but not the Schwarzschild type generally. We find that in order to make the method of Robinson and Wilczec et al. effective for the calculation of Hawking fluxes for general non-Schwarzschild type spherically symmetric metrics, it is necessary to make a coordinate transformation to transform them to the Schwarzschild type. We calculate the charge and energy-momentum fluxes using the method of anomaly cancelation for the reduced two-dimensional black brane metric. We obtain that the thermodynamic temperature and chemical potential for a non-Schwarzschild type spherically symmetric black p-brane obtained from the method of anomaly cancelation match its Hawking temperature and chemical potential obtained from black brane thermodynamics, and the spectrum of radiation is in the Planck distribution.
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تاریخ انتشار 2008