Portal de Periódicos da CAPES

Statistics of the population difference for cold fermions in a double well potential

2012; IOP Publishing; Volume: 45; Issue: 20 Linguagem: Inglês

10.1088/0953-4075/45/20/205302

1361-6455

Tomasz Górski, Kazimierz Rzążewski,

Quantum many-body systems

Sensitive measurements of the density fluctuations in ultracold gases performed recently evidenced quantum statistical effects, i.e. an enhancement of the density fluctuations in Bose gas and a suppression of the fluctuations in Fermi gas. In this paper we study thermal equilibrium fluctuations in the atomic number difference between the two halves of a harmonically trapped Fermi gas split by a delta potential. We show how splitting the potential strength affects the fluctuations.