Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Dynamics of a Mobile Impurity in a One-Dimensional Bose Liquid   We develop a microscopic theory of a quantum impurity propagating in a
one-dimensional Bose liquid. As a result of scattering off thermally excited
quasiparticles, the impurity experiences the friction. We find that, at low
temperatures, the resulting force scales either as the fourth or the eighth
power of temperature, depending on the system parameters. For temperatures
higher than the chemical potential of the Bose liquid, the friction force is a
linear function of temperature. Our approach enables us to find the friction
force in the crossover region between the two limiting cases. In the integrable
case, corresponding to the Yang-Gaudin model, the impurity becomes transparent
for quasiparticles and thus the friction force is absent. Our results could be
further generalized to study other kinetic phenomena.

22
The categories of this paper are: chao-dyn
5
The categories of this paper are: gr-qc
35
The categories of this paper are: mtrl-th
3
The categories of this paper are: physics
29
The categories of this paper are: funct-an
2
The categories of this paper are: math
6
The categories of this paper are: astro-ph
20
The categories of this paper are: acc-phys
32
The categories of this paper are: atom-ph
37
The categories of this paper are: supr-con
36
The categories of this paper are: cmp-lg
8
The categories of this paper are: hep-ex
17
The categories of this paper are: q-fin
12
The categories of this paper are: nucl-th
23
The categories of this paper are: solv-int
13
The categories of this paper are: quant-ph