Simulating Dense QCD Matter with Ultracold Atomic Boson-Fermion Mixtures

Journal Article · Fri Aug 21 00:00:00 EDT 2009 · Physical Review Letters

DOI:https://doi.org/10.1103/PHYSREVLETT.103.085301· OSTI ID:21364629

Maeda, Kenji; Hatsuda, Tetsuo ^[1]; Baym, Gordon ^[2]

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1. Department of Physics, University of Tokyo, Tokyo 113-0033 (Japan)
2. Department of Physics, University of Illinois, 1110 W. Green Street, Urbana, Illinois 61801 (United States)

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.

• OSTI ID: 21364629
• Journal Information: Physical Review Letters, Vol. 103, Issue 8; Other Information: DOI: 10.1103/PhysRevLett.103.085301; (c) 2009 The American Physical Society; ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BOSE-EINSTEIN CONDENSATION
BOSONS
FLAVOR MODEL
MANY-BODY PROBLEM
NUCLEONS
PHASE DIAGRAMS
QUANTUM CHROMODYNAMICS
QUARK MATTER
QUARKS
SPIN
SUPERFLUIDITY
SYMMETRY BREAKING
ANGULAR MOMENTUM
BARYONS
COMPOSITE MODELS
DIAGRAMS
ELEMENTARY PARTICLES
FERMIONS
FIELD THEORIES
HADRONS
INFORMATION
MATHEMATICAL MODELS
MATTER
PARTICLE MODELS
PARTICLE PROPERTIES
QUANTUM FIELD THEORY
QUARK MODEL