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Joule Thomson expansion of κ-deformed Schwarzschild-AdS black hole

Vishnu Rajagopal, Puxun Wu

gr-qcarXiv:2608.22791

Abstract

We investigate the Joule-Thomson expansion of a non-commutative Schwarzschild-AdS black hole, whose space-time geometry is described by the Lie-algebraic κ-deformed space-time, and show that the κ-deformation parameter induces Joule-Thomson expansion in an uncharged-AdS black hole. We find the ratio of minimum inversion temperature to critical temperature Ti(min)/Tc 0.493, is independent of the deformation parameter, and is in close agreement with the value for Reissner-Nordstrom black hole. Furthermore, we show the existence of a minimum black hole mass (depending on the κ-deformation parameter) below which the Joule-Thomson expansion vanishes.

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