| 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 |
|