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arXiv · 0904.4372

Simulating dense QCD matter with ultracold atomic boson-fermion mixtures

Kenji Maeda·Gordon Baym·Tetsuo Hatsuda
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Abstract

We delineate, as an analog of two-flavor dense quark matter, the phase structure of a many-body mixture of atomic bosons and fermions in two internal states with a tunable boson-fermion attraction. The bosons b correspond to diquarks, and the fermions f to unpaired quarks. For weak b-f attraction, the system is a mixture of a Bose-Einstein condensate and degenerate fermions, while for strong attraction composite b-f fermions N, analogs of the nucleon, are formed, which are superfluid due to the N-N attraction in the spin-singlet channel. We determine the symmetry breaking patterns at finite temperature as a function of the b-f coupling strength, and relate the phase diagram to that of dense QCD.

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Kenji Maeda, Gordon Baym, Tetsuo Hatsuda. 2009-04-28. Simulating dense QCD matter with ultracold atomic boson-fermion mixtures. https://doi.org/10.1103/physrevlett.103.085301

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