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http://dspace.mediu.edu.my:8181/xmlui/handle/10261/3440| Title: | Quasi-particle creation by analogue black holes |
| Keywords: | Analogue models Acoustic spacetimes Hawking radiation |
| Publisher: | Institute of Physics Publishing |
| Description: | 30 pages, 16 figures. We discuss the issue of quasi-particle production by "analogue black holes" with particular attention to the possibility of reproducing Hawking radiation in a laboratory. By constructing simple geometric acoustic models, we obtain a somewhat unexpected result: We show that in order to obtain a stationary and Planckian emission of quasi-particles, it is not necessary to create an ergoregion in the acoustic spacetime (corresponding to a supersonic regime in the flow). It is sufficient to set up a dynamically changing flow either eventually generating an arbitrarily small sonic region v=c, but without any ergoregion, or even just asymptotically, in laboratory time, approaching a sonic regime with sufficient rapidity. C.B. has been funded by the spanish MEC under project FIS2005-05736-C03-01 with a partial FEDER contribution. C.B. and S.L. are also supported by a INFN-MEC collaboration. The research of M.V. was funded in part by the Marsden Fund administered by the Royal Society of New Zealand. Peer reviewed |
| URI: | http://dspace.mediu.edu.my:8181/xmlui/handle/10261/3440 |
| Other Identifiers: | Class.Quant.Grav. 23 (2006) 5341-5366 arXiv:gr-qc/0604058v1 1361-6382 http://hdl.handle.net/10261/3440 |
| Appears in Collections: | Digital Csic |
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