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21 papers
Instability and Momentum Bifurcation of molecular BEC in Exotic Dispersion with Shaken Lattice
Kaiyue Wang, Feng Xiong, Yun Long +2
We place a molecular Bose-Einstein condensate in a 1D shaken lattice with a Floquet-engineered dispersion, and observe the dynamics in both position and momentum space. At the init…
Spin Susceptibility Above the Superfluid Onset in Ultracold Fermi Gases
Yun Long, Feng Xiong, Colin V. Parker
Ultracold atomic Fermi gases can be tuned to interact strongly, where they display spectroscopic signatures above the superfluid transition reminiscent of the pseudogap in cuprates…
Enhanced principle component method for fringe removal in cold atom images
Feng Xiong, Yun Long, Colin V. Parker
Many powerful imaging techniques for cold atoms are based on determining the optical density by comparing a beam image having passed through the atom cloud to a reference image tak…
Sub-nanometer optical linewidth of thulium atoms in rare gas crystals
Vinod Gaire, Chandra S. Raman, Colin V. Parker
We investigate the 1140 nm magnetic dipole transition of thulium atoms trapped in solid argon and neon. These solids can be straightforwardly grown on any substrate at cryogenic te…
All-optical production of molecular BEC in excited hyperfine levels
Yun Long, Feng Xiong, Vinod Gaire +2
We present an all-optical method for achieving molecular Bose-Einstein condensates of . We demonstrate this with mixtures in the lowest two (1-2), and second lowes…
Simultaneous sub-Doppler laser cooling of fermionic Li and K on the D line: Theory and Experiment
Franz Sievers, Norman Kretzschmar, Diogo Rio Fernandes +7
We report on simultaneous sub-Doppler laser cooling of fermionic Li and K using the D optical transitions. We compare experimental results to a numerical simulation…