أعرض تسجيلة المادة بشكل مبسط

dc.creator Barceló, Carlos
dc.creator Liberati, Stefano
dc.creator Sonego, Sebastiano
dc.creator Visser, Matt
dc.date 2008-04-03T01:11:29Z
dc.date 2008-04-03T01:11:29Z
dc.date 2006-07-03
dc.date.accessioned 2017-01-31T01:01:27Z
dc.date.available 2017-01-31T01:01:27Z
dc.identifier Phys.Rev.Lett. 97 (2006) 171301
dc.identifier arXiv:gr-qc/0607008v1
dc.identifier 0031-9007
dc.identifier http://hdl.handle.net/10261/3428
dc.identifier.uri http://dspace.mediu.edu.my:8181/xmlui/handle/10261/3428
dc.description revtex4, 4 pages, 1 figure.-- Final version of the paper available at: http://prl.aps.org/
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 a trapped region in the acoustic spacetime (corresponding to a supersonic regime in the fluid flow). It is sufficient to set up a dynamically changing flow asymptotically approaching a sonic regime with sufficient rapidity in laboratory time.
dc.description Peer reviewed
dc.format 133050 bytes
dc.format application/pdf
dc.language eng
dc.publisher American Physical Society
dc.relation Preprint
dc.rights openAccess
dc.subject General Relativity and Quantum Cosmology
dc.subject Hawking radiation
dc.subject Trapped regions
dc.subject Horizons
dc.subject Acoustic spacetimess
dc.title Hawking-like radiation does not require a trapped region
dc.type Pre-print


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أعرض تسجيلة المادة بشكل مبسط