%0 Journal Article
%T Dynamic structure factor and drag force in a one-dimensional strongly-interacting Bose gas at finite temperature
%A Guillaume Lang
%A Frank Hekking
%A Anna Minguzzi
%J Physics
%D 2015
%I arXiv
%R 10.1103/PhysRevA.91.063619
%X We study the effect of thermal and quantum fluctuations on the dynamical response of a one-dimensional strongly-interacting Bose gas in a tight atomic waveguide. We combine the Luttinger liquid theory at arbitrary interactions and the exact Bose-Fermi mapping in the Tonks-Girardeau-impenetrable-boson limit to obtain the dynamic structure factor of the strongly-interacting fluid at finite temperature. Then, we determine the drag force felt by a potential barrier moving along the fluid in the experimentally realistic situation of finite barrier width and temperature.
%U http://arxiv.org/abs/1503.08038v2