Abstract
We study the dynamics of a one-dimensional Bose gas after a sudden change of the interaction strength from zero to a finite value using the numerical time-evolving block decimation (TEBD) algorithm. It is shown that despite the integrability of the system, local quantities such as the two-particle correlation g(2)(x, x) attain steady-state values in a short characteristic time inversely proportional to the Tonks parameter γ and the square of the density. The asymptotic values are very close to those of a finite temperature grand canonical ensemble, with a local temperature corresponding to the initial energy and density. Non-local density–density correlations, however, approach a steady state on a much larger time scale determined by the finite propagation velocity of oscillatory correlation waves.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
