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Tunnelling, Temperature and Taub-NUT Black Holes
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Tunnelling, Temperature and Taub-NUT Black Holes
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We investigate quantum tunnelling methods for calculating black hole temperature, specifically the null geodesic method of Parikh and Wilczek and the Hamilton-Jacobi Ansatz method of Angheben et al. We consider application of these methods to a broad class of spacetimes with event horizons, inlcuding Rindler and non-static spacetimes such as Kerr-Newman and Taub-NUT. We obtain a general form for the temperature of Taub-NUT-Ads black holes that is commensurate with other methods. We examine the limitations of these methods for extremal black holes, taking the extremal Reissner-Nordstrom spacetime as a case in point.
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Cited by 1 Pith paper
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The Hawking temperature in the context of dark energy for Kerr-Newman and Kerr-Newman-AdS backgrounds
Hawking temperatures for emergent gravity metrics of KN and KNAdS are calculated along θ=0, modified by dark energy from DBI k-essence fields, with metrics satisfying Einstein equations at large r.
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