| Autor: |
A Sindona, J Goold, N Lo Gullo, F Plastina |
| Jazyk: |
angličtina |
| Rok vydání: |
2014 |
| Předmět: |
|
| Zdroj: |
New Journal of Physics, Vol 16, Iss 4, p 045013 (2014) |
| Druh dokumentu: |
article |
| ISSN: |
1367-2630 |
| DOI: |
10.1088/1367-2630/16/4/045013 |
| Popis: |
The local quench of a Fermi gas, giving rise to the Fermi edge singularity and the Anderson orthogonality catastrophe, is an analytically tractable out-of-equilibrium problem in condensed matter. It describes the generic physics that occurs when a localized scattering potential is suddenly introduced in a Fermi sea, leading to a brutal disturbance of its quantum state. It has recently been proposed that the effect could be efficiently simulated in a controlled manner using the tunability of ultra-cold atoms. In this work, we analyze the quench problem in a gas of trapped ultra-cold fermions from a thermodynamic perspective using the full statistics of the so-called work distribution. The work statistics are shown to provide an accurate insight into the fundamental physics of the process. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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