Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Attaining Carnot Efficiency with Quantum and Nanoscale Heat Engines   A heat engine operating in the one-shot finite-size regime, where systems
composed of a small number of quantum particles interact with hot and cold
baths and are restricted to one-shot measurements, delivers fluctuating work.
Further, engines with lesser fluctuation produce a lesser amount of
deterministic work. Hence, the heat-to-work conversion efficiency stays well
below the Carnot efficiency. Here we overcome this limitation and attain Carnot
efficiency in the one-shot finite-size regime, where the engines allow the
working systems to simultaneously interact with two baths via the semi-local
thermal operations and reversibly operate in a one-step cycle. These engines
are superior to the ones considered earlier in work extraction efficiency, and,
even, are capable of converting heat into work by exclusively utilizing
inter-system correlations. We formulate a resource theory for quantum heat
engines to prove the results.

20
The categories of this paper are: acc-phys
19
The categories of this paper are: eess
28
The categories of this paper are: alg-geom
5
The categories of this paper are: gr-qc
8
The categories of this paper are: hep-ex
31
The categories of this paper are: ao-sci
21
The categories of this paper are: adap-org
9
The categories of this paper are: nlin
10
The categories of this paper are: q-bio
7
The categories of this paper are: hep-th
12
The categories of this paper are: nucl-th
37
The categories of this paper are: supr-con
27
The categories of this paper are: comp-gas
35
The categories of this paper are: mtrl-th
36
The categories of this paper are: cmp-lg
18
The categories of this paper are: econ