Amit Giveon et al JHEP07(2004)076 doi:10.1088/1126-6708/2004/07/076
On thermodynamical properties of some coset CFT backgrounds
Amit Giveon1, Anatoly Konechny1, Eliezer Rabinovici1 and Amit Sever1
Show affiliationsWe investigate the thermodynamical features of two lorentzian signature backgrounds that arise in string theory as exact CFTs and possess more than two disconnected asymptotic regions: the 2-d charged black hole and the Nappi-Witten cosmological model. We find multiple smooth disconnected euclidean versions of the charged black hole background. They are characterized by different temperatures and electro-chemical potentials. We show that there is no straightforward analog of the Hartle-Hawking state that would express these thermodynamical features. We also obtain multiple euclidean versions of the Nappi-Witten cosmological model and study their singularity structure. It suggests to associate a non-isotropic temperature with this background.
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E-print Number: hep-th/0406131
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- PACS
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11.25.Hf Conformal field theory, algebraic structures
11.27.+d Extended classical solutions; cosmic strings, domain walls, texture
- Subjects
- Dates
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Issue 07 (July 2004)
Received 30 June 2004, accepted for publication 29 July 2004
Published 9 September 2004
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On thermodynamical properties of some coset CFT backgrounds
Amit Giveon et al JHEP07(2004)076
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