Density distribution of a trapped two-dimensional strongly interacting Fermi gas

Details Density distribution of a trapped two-dimensional strongly interacting Fermi gas Density distribution of a trapped two-dimensional strongly interacting Fermi gas

2011-09-29

arxiv.org/abs/1109.6417v2

New J. Phys. 13, 113032 (2011)

Physics

Condensed Matter

Quantum Gases

8 pages, 7 figures; Final version appeared in New Journal of Physics

Scientific paper

10.1088/1367-2630/13/11/113032

We calculate and measure the density distribution and cloud size of a trapped two-dimensional $^{6}$Li Fermi gas near a Feshbach resonance at low temperatures. Density distributions and cloud sizes are calculated for a wide range of interaction parameters using a local density approximation (LDA) and a zero-temperature equation of state obtained from quantum Monte Carlo simulations reported by G. Bertaina and S. Giorgini, Phys. Rev. Lett. \textbf{106}, 110403 (2011). We find that LDA predictions agree well with experimental measurements across a Feshbach resonance. Theoretical results for Tan's contact parameter in a trapped gas are reported along with predictions for static structure factor at large momentum which could be measured in future Bragg spectroscopy experiments on two-dimensional Fermi gases.

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