أعرض تسجيلة المادة بشكل مبسط

dc.creator Barceló, Carlos
dc.creator Liberati, Stefano
dc.creator Sonego, Sebastiano
dc.creator Visser, Matt
dc.date 2008-04-04T01:09:23Z
dc.date 2008-04-04T01:09:23Z
dc.date 2006-04-12
dc.date.accessioned 2017-01-31T01:01:29Z
dc.date.available 2017-01-31T01:01:29Z
dc.identifier Class.Quant.Grav. 23 (2006) 5341-5366
dc.identifier arXiv:gr-qc/0604058v1
dc.identifier 1361-6382
dc.identifier http://hdl.handle.net/10261/3440
dc.identifier.uri http://dspace.mediu.edu.my:8181/xmlui/handle/10261/3440
dc.description 30 pages, 16 figures.
dc.description 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.
dc.description 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.
dc.description Peer reviewed
dc.format 394705 bytes
dc.format application/pdf
dc.language eng
dc.publisher Institute of Physics Publishing
dc.relation Preprint
dc.rights openAccess
dc.subject Analogue models
dc.subject Acoustic spacetimes
dc.subject Hawking radiation
dc.title Quasi-particle creation by analogue black holes
dc.type Pre-print


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أعرض تسجيلة المادة بشكل مبسط