Joule-Thomson expansion of AdS black holes in quasitopological electromagnetism

Barrientos, José; Mena, José

doi:10.1103/PhysRevD.106.044064

Joule-Thomson expansion of AdS black holes in quasitopological electromagnetism

José Barrientos
(
- Prague, Tech. U. and
- Tarapaca U.
)
,
José Mena
(
- Concepcion U.
)

Jun 13, 2022

8 pages

Published in:

Phys.Rev.D 106 (2022) 4, 044064

Published: Aug 15, 2022

e-Print:

2206.06018 [gr-qc]

DOI:

10.1103/PhysRevD.106.044064 (publication)

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Abstract: (APS)

We study the Joule-Thomson expansion in Einstein-Maxwell theory supplemented with the so-called quasitopological electromagnetism, this in the extended phase space thermodynamic approach. We compute the Joule-Thomson coefficient and depict all relevant inversion and isenthalpic curves in the temperature-pressure plane, determining in this manner the corresponding cooling and heating regions. In contrast with previous related works we show the existence of three branches for the inversion curves which depends on suitable selections of the parameter space of the theory, thus departing from the usual van der Waals behavior which exhibits up to two branches.

Note:

Published PRD version

black hole: anti-de Sitter
thermodynamical
phase space
Einstein-Maxwell equation
van der Waals
electromagnetic field
topological
temperature
pressure
parameter space

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