The sonic analogue of black hole radiation
| Autor: | S. Giovanazzi |
|---|---|
| Rok vydání: | 2006 |
| Předmět: |
Physics
Scattering Horizon FOS: Physical sciences Microscopic description Condensed Matter Physics Atomic and Molecular Physics and Optics law.invention Condensed Matter - Other Condensed Matter General Relativity and Quantum Cosmology Piston Hawking Flow (mathematics) law Quantum electrodynamics Fermi gas Other Condensed Matter (cond-mat.other) Hawking radiation |
| Zdroj: | Journal of Physics B: Atomic, Molecular and Optical Physics. 39:S109-S120 |
| ISSN: | 1361-6455 0953-4075 |
| Popis: | A microscopic description of Hawking radiation in sonic black holes has been recently presented (Giovanazzi S 2005 Phys. Rev. Lett. 94 061302). This exactly solvable model is formulated in terms of one-dimensional scattering of a Fermi gas. In this paper, the model is extended to account possible finite size effects of a realistic geometry. The flow of particles is maintained by a piston (i.e. an impenetrable barrier) moving slowly towards the sonic horizon. Using existing technologies the Hawking temperature can be of order of a few microkelvin in a realistic experiment. Comment: 14 pages, 7 figures, submitted to Journal of Physics B: Atomic, Molecular & Optical Physics |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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