Dynamics of excitations in a one-dimensional Bose liquid

Details Dynamics of excitations in a one-dimensional Bose liquid Dynamics of excitations in a one-dimensional Bose liquid

2007-05-14

arxiv.org/abs/0705.2015v2

Phys. Rev. Lett. 99, 110405 (2007)

Physics

Condensed Matter

Statistical Mechanics

Scientific paper

10.1103/PhysRevLett.99.110405

We show that the dynamic structure factor of a one-dimensional Bose liquid
has a power-law singularity defining the main mode of collective excitations.
Using the Lieb-Liniger model, we evaluate the corresponding exponent as a
function of the wave vector and the interaction strength.

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