Universal clusters as building blocks of stable quantum matter

Shimpei Endo, Antonio M. García-García, Pascal Naidon

Research output: Contribution to journalArticlepeer-review

15 Citations (Scopus)


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 Li6-Cr53 mixture.

Original languageEnglish
Article number053611
JournalPhysical Review A
Issue number5
Publication statusPublished - 2016 May 18


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