What can ultracold Fermi gases teach us about high $T_c$ superconductors and vice versa?

K. Levin; Qijin Chen

doi:10.1016/j.physc.2007.03.293

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What can ultracold Fermi gases teach us about high $T_c$ superconductors and vice versa?

K. Levin·Qijin Chen

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Abstract

We review recent developments in the field of ultracold atomic Fermi gases. As the cold atom system evolves from BCS to Bose-Einstein condensation (BEC), the behavior of the thermodynamics, and the particle density profiles evolves smoothly in a way which can be well understood theoretically. In the interesting "unitary" regime, we show that these and other data necessarily requires the introduction of a pseudogap in the fermionic spectrum which exhibits many striking similarities to its counterpart in underdoped high $T_c$ superconductors. We emphasize these similarities, giving an overview of the experimental tools and key issues of common interest in both systems.

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K. Levin, Qijin Chen. 2006-11-06. What can ultracold Fermi gases teach us about high $T_c$ superconductors and vice versa?. https://doi.org/10.1016/j.physc.2007.03.293

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