@article{cheng_kangara_arakelyan_thomas_2016, title={Fermi gases in the two-dimensional to quasi-two-dimensional crossover}, volume={94}, ISSN={["2469-9934"]}, DOI={10.1103/physreva.94.031606}, abstractNote={We tune the dimensionality of pancake-shaped strongly-interacting $^6$Li Fermi gas clouds from two-dimensional (2D) to quasi-2D, by controlling the ratio of the radial Fermi energy $E_F$ to the harmonic oscillator energy $h\nu_z$ in the tightly confined direction. In the 2D regime, where $E_F<<h\nu_z$, the measured radio frequency resonance spectra are in agreement with 2D-BCS theory. In the quasi-2D regime, where $E_F\simeq h\nu_z$, the measured spectra deviate significantly from 2D-BCS theory. For both regimes, the measured cloud radii disagree with 2D-BCS mean field theory, but agree approximately with predictions using a free energy derived from the Bethe-Goldstone equation.}, number={3}, journal={PHYSICAL REVIEW A}, author={Cheng, Chingyun and Kangara, J. and Arakelyan, I. and Thomas, J. E.}, year={2016}, month={Sep} }