Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Boosting the performance of small autonomous refrigerators via common
  environmental effects   We explore the possibility of enhancing the performance of small thermal
machines by the presence of common noise sources. In particular, we study a
prototypical model for an autonomous quantum refrigerator comprised by three
qubits coupled to thermal reservoirs at different temperatures. Our results
show that engineering the coupling to the reservoirs to act as common
environments lead to relevant improvements in the performance. The enhancements
arrive to almost double the cooling power of the original fridge without
compromising its efficiency. The greater enhancements are obtained when the
refrigerator may benefit from the presence of a decoherence-free subspace. The
influence of coherent effects in the dissipation due to one- and two-spin
correlated processes is also examined by comparison with an equivalent
incoherent yet correlated model of dissipation.

30
The categories of this paper are: q-alg
35
The categories of this paper are: mtrl-th
5
The categories of this paper are: gr-qc
1
The categories of this paper are: cs
9
The categories of this paper are: nlin
12
The categories of this paper are: nucl-th
24
The categories of this paper are: dg-ga
7
The categories of this paper are: hep-th
21
The categories of this paper are: adap-org
10
The categories of this paper are: q-bio
25
The categories of this paper are: patt-sol
33
The categories of this paper are: plasm-ph
22
The categories of this paper are: chao-dyn
6
The categories of this paper are: astro-ph
11
The categories of this paper are: hep-lat
36
The categories of this paper are: cmp-lg