Phase separation of superfluids in the chain of four-component ultracold atoms

Barcza, Gergely and Szirmai, Edina and Sólyom, Jenő and Legeza, Örs (2015) Phase separation of superfluids in the chain of four-component ultracold atoms. EUROPEAN PHYSICAL JOURNAL-SPECIAL TOPICS, 224 (3). pp. 533-538. ISSN 1951-6355

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Abstract

We investigate the competition of various exotic superfluid states in a chain of spin-polarized ultracold fermionic atoms with hy- perfine spin F = 3/2 and s-wave contact interactions. We show that the ground state is an exotic inhomogeneous mixture in which two distinct superfluid phases — spin-carrying pairs and singlet quartets — form alternating domains in an extended region of the parameter space.

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