Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Collective effects enhancing power and efficiency   Energy conversion is most efficient for micro or nano machines with tight
coupling between input and output power. To reach meaningful amounts of power,
ensembles of $N$ such machines must be considered. We use a model system to
demonstrate that interactions between $N$ tightly coupled nanomachines can
enhance the power output per machine. Furthermore, while interactions break
tight coupling and thus lower efficiency in finite ensembles, the macroscopic
limit ($N \rightarrow \infty$) restores it and enhances both the efficiency and
the output power per nanomachine.

32
The categories of this paper are: atom-ph
25
The categories of this paper are: patt-sol
22
The categories of this paper are: chao-dyn
35
The categories of this paper are: mtrl-th
36
The categories of this paper are: cmp-lg
11
The categories of this paper are: hep-lat
21
The categories of this paper are: adap-org
29
The categories of this paper are: funct-an
13
The categories of this paper are: quant-ph
23
The categories of this paper are: solv-int
28
The categories of this paper are: alg-geom
0
The categories of this paper are: hep-ph
2
The categories of this paper are: math
30
The categories of this paper are: q-alg
37
The categories of this paper are: supr-con
12
The categories of this paper are: nucl-th