DOIONLINE 
DOIONLINE Publish In |
International Journal of Management and Applied Science (IJMAS)-IJMAS |
 Journal Home Volume Issue |
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Issue |
Volume-3,Issue-6 ( Jun, 2017 ) | |||||||||
Paper Title |
Geometrothermodynamics of The Cosmological Constant | |||||||||
Author Name |
Maria N. Quevedo, Hernando Quevedo | |||||||||
Affilition |
Departamento de Matem_aticas, Facultad de Ciencias B_asicas y Aplicadas, Universidad Militar Nueva Granada, Cra 11 No. 101-80, Bogot_a D.E., Colombia Instituto de Ciencias Nucleares, Universidad Nacional Aut_onoma de M_exico, AP 70543, M_exico, DF 04510, Mexico Dipartimento di Fisica and ICRA, Universit_a di Roma \La Sapienza", I-00185 Roma, Italy | |||||||||
Pages |
21-24 | |||||||||
Abstract |
We study the properties of black holes with cosmological constant in the framework of geometrothermodynamics. We consider in particular the case of the Schwarzschild-anti-de-Sitter black hole, and show that the corresponding fundamental equation is a generalized homogeneous function only if the cosmological constant is assumed to be a thermodynamic variable. We analyze the geo- metric properties of the equilibrium space and show that the presence of the cosmological constant changes drastically the stability properties and the phase transition structure of the black hole. Keywords- Black holes, phase transitions, thermodynamics, geometrothermodynamics PACS numbers: 05.70.Ce; 05.70.Fh; 04.70.-s; 04.20.-q | |||||||||
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