Acta Optica Sinica, Volume. 30, Issue 3, 893(2010)
Obtaining the Parameter of Degenerate Fermi Gas from Two-Dimensional Optical Density Distribution of Absorption Images
The three dimensional density distribution of a spin-polarized Fermi gas in a harmonic magnetic trap is calculated by using the Tomas-Fermi approximation. By fit the optical density distribution of absorption imaging,the total atom number,Fermi temperature and the actual temperature of the gas may be extracted. According this method,the optical density distribution of absorption imaging of degenerate fermions 40K in our experiment is fitted to obtain quantum degeneracy parameter T/TF of the Fermi gas.
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Wang Pengjun, Xiong Dezhi, Chen Haixia, Zhang Jing. Obtaining the Parameter of Degenerate Fermi Gas from Two-Dimensional Optical Density Distribution of Absorption Images[J]. Acta Optica Sinica, 2010, 30(3): 893
Category: Quantum Optics
Received: Mar. 31, 2009
Accepted: --
Published Online: Mar. 11, 2010
The Author Email: Pengjun Wang (wpj5255@163.com)