Dynamics of Pair Correlations in the Attractive Lieb-Liniger Gas

Journal Article · Fri Oct 08 00:00:00 EDT 2010 · Physical Review Letters

DOI:https://doi.org/10.1103/PHYSREVLETT.105.150403· OSTI ID:21471024

Muth, Dominik; Fleischhauer, Michael ^[1]

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1. Fachbereich Physik und Forschungszentrum OPTIMAS, Technische Universitaet Kaiserslautern, D-67663 Kaiserslautern (Germany)

We investigate the dynamics of a one-dimensional Bose gas after a quench from the Tonks-Girardeau regime to the regime of strong attractive interactions applying analytical techniques and numerical simulations. After the quench the system is found to be predominantly in an excited gaslike state, the so-called super-Tonks gas, however with a small coherent admixture of two-particle bound states. Despite its small amplitude, the latter leads to a pronounced oscillation of the local density correlation with a frequency corresponding to the binding energy of the pair. Contributions from bound states with larger particle numbers are found to be negligible.

• OSTI ID: 21471024
• Journal Information: Physical Review Letters, Vol. 105, Issue 15; Other Information: DOI: 10.1103/PhysRevLett.105.150403; (c) 2010 American Institute of Physics; ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
BINDING ENERGY
BOSE-EINSTEIN GAS
BOUND STATE
COMPUTERIZED SIMULATION
CORRELATIONS
DENSITY
ONE-DIMENSIONAL CALCULATIONS
OSCILLATIONS
PAIRING INTERACTIONS
QUENCHING
ENERGY
INTERACTIONS
PHYSICAL PROPERTIES
SIMULATION