| 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 |
|