Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Dissipative dynamics of atomic Hubbard models coupled to a phonon bath:
  Dark state cooling of atoms within a Bloch band of an optical lattice   We analyse a laser assisted sympathetic cooling scheme for atoms within the
lowest Bloch band of an optical lattice. This scheme borrows ideas from
sub-recoil laser cooling, implementing them in a new context in which the atoms
in the lattice are coupled to a BEC reservoir. In this scheme, excitation of
atoms between Bloch bands replaces the internal structure of atoms in normal
laser cooling, and spontaneous emission of photons is replaced by creation of
excitations in the BEC reservoir. We analyse the cooling process for many
bosons and fermions, and obtain possible temperatures corresponding to a small
fraction of the Bloch band width within our model. This system can be seen as a
novel realisation of a many-body open quantum system.

18
The categories of this paper are: econ
17
The categories of this paper are: q-fin
8
The categories of this paper are: hep-ex
27
The categories of this paper are: comp-gas
23
The categories of this paper are: solv-int
11
The categories of this paper are: hep-lat
26
The categories of this paper are: bayes-an
2
The categories of this paper are: math
36
The categories of this paper are: cmp-lg
28
The categories of this paper are: alg-geom
30
The categories of this paper are: q-alg
25
The categories of this paper are: patt-sol
20
The categories of this paper are: acc-phys
35
The categories of this paper are: mtrl-th
1
The categories of this paper are: cs
6
The categories of this paper are: astro-ph