Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Quantum engineering of a synthetic thermal bath via Markovian feedback
  control   We propose and investigate a scheme for engineering a synthetic thermal bath
for a bosonic quantum gas in a one-dimensional optical lattice based on
Markovian feedback control. The performance of our scheme is quantified by the
fidelity between the steady state of the system and the effective thermal
state. For double-well and triple-well systems with non-interacting particles,
the steady state is found to be an exact thermal state, which is attributed to
the fact that the transfer rates between all pairs of coupled eigenstates
satisfy detailed balance condition. The senario changes when there are more
lattice sites, where the detailed balance condition does not hold any more, but
remains an accurate approximation. Remarkably, our scheme performs very well at
low and high temperature regimes, with the fidelity close to one. The
performance at the intermediate temperature regime is slightly worse, and the
fidelity shows a gentle decrease with increasing system size. We also discuss
the interacting cases. In contrast to the non-interacting cases, the scheme is
found to perform better at a higher temperature. Another difference is that the
minimal temperature that can be engineered is nonzero and increases with the
interaction strength.

34
The categories of this paper are: chem-ph
1
The categories of this paper are: cs
12
The categories of this paper are: nucl-th
26
The categories of this paper are: bayes-an
2
The categories of this paper are: math
6
The categories of this paper are: astro-ph
32
The categories of this paper are: atom-ph
5
The categories of this paper are: gr-qc
22
The categories of this paper are: chao-dyn
15
The categories of this paper are: nucl-ex
36
The categories of this paper are: cmp-lg
3
The categories of this paper are: physics
11
The categories of this paper are: hep-lat
25
The categories of this paper are: patt-sol
7
The categories of this paper are: hep-th
14
The categories of this paper are: math-ph