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arXiv · 1507.06309

Universal clusters as building blocks of stable quantum matter

Shimpei Endo·Antonio M. García-García·Pascal Naidon
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Abstract

We present an exploratory study that suggests that Efimov physics, a leading research theme in few-body quantum physics, can also induce stable many-body ground states whose building blocks are universal clusters. We identify a range of parameters in a mass-and-density imbalanced two-species fermionic mixture for which the ground state is a gas of Efimov-related universal trimers. An explicit calculation of the trimer-trimer interaction reveals that the trimer phase is an SU$(3)$ Fermi liquid stable against recombination losses. We propose to experimentally observe this phase in a fermionic $^6$Li-$^{53}$Cr mixture.

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Shimpei Endo, Antonio M. García-García, Pascal Naidon. 2015-07-22. Universal clusters as building blocks of stable quantum matter. https://doi.org/10.1103/physreva.93.053611

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