Polarization suppression and nonmonotonic local two-body correlations in the two-component Bose gas in one dimension

Journal Article · Tue Dec 15 00:00:00 EST 2009 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.80.061605· OSTI ID:21352287

Caux, Jean-Sebastien ^[1]; Klauser, Antoine ^[1]; Brink, Jeroen van den ^[2]

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1. Institute for Theoretical Physics, Universiteit van Amsterdam, 1018 XE Amsterdam (Netherlands)
2. Instituut-Lorentz, Universiteit Leiden, P.O. Box 9506, 2300 RA Leiden (Netherlands)

We study the interplay of quantum statistics, strong interactions, and finite temperatures in the two-component (spinor) Bose gas with repulsive delta-function interactions in one dimension. Using the Thermodynamic Bethe Ansatz, we obtain the equation of state, population densities, and local density correlation numerically as a function of all physical parameters (interaction, temperature, and chemical potentials), quantifying the full crossover between low-temperature ferromagnetic and high-temperature unpolarized regimes. In contrast to the single component, Lieb-Liniger gas, nonmonotonic behavior of the local density correlation as a function of temperature is observed.

• OSTI ID: 21352287
• Journal Information: Physical Review. A, Vol. 80, Issue 6; Other Information: DOI: 10.1103/PhysRevA.80.061605; (c) 2009 The American Physical Society; ISSN 1050-2947
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
BOSE-EINSTEIN GAS
BOSONS
CORRELATIONS
DELTA FUNCTION
DENSITY
EQUATIONS OF STATE
POPULATION DENSITY
QUANTUM MECHANICS
STATISTICS
STRONG INTERACTIONS
TEMPERATURE DEPENDENCE
TWO-BODY PROBLEM
BASIC INTERACTIONS
EQUATIONS
FUNCTIONS
INTERACTIONS
MANY-BODY PROBLEM
MATHEMATICS
MECHANICS
PHYSICAL PROPERTIES