Effective Geometry

AIP Conf.Proc. 668 (2003) 288-300 We introduce the concept of effective geometry by studying several systems in which it arises naturally. As an example of the power and conciseness of the method, it is shown that a flowing dielectric medium with a linear response to an external electric field can b...

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Bibliographic Details
Main Authors Novello, M, Bergliaffa, S. E. Perez
Format Journal Article
LanguageEnglish
Published 13.02.2003
Subjects
Physics - General Relativity and Quantum Cosmology
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Summary:AIP Conf.Proc. 668 (2003) 288-300 We introduce the concept of effective geometry by studying several systems in which it arises naturally. As an example of the power and conciseness of the method, it is shown that a flowing dielectric medium with a linear response to an external electric field can be used to generate an analog geometry that has many of the formal properties of a \Sch black hole for light rays, in spite of birefringence. The surface gravity of this analog black hole has a contribution that depends only on the dielectric properties of the fluid (in addition to the usual term dependent on the acceleration). This term may be give a hint to a new mechanism to increase the temperature of Hawking radiation.
DOI:10.48550/arxiv.gr-qc/0302052