Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Entanglement Generation is Not Necessary for Optimal Work Extraction   We consider reversible work extraction from identical quantum batteries. From
an ensemble of individually passive states, work can be produced only via
global unitary (and thus entangling) operations. However, we show here that
there always exists a method to extract all possible work without creating any
entanglement, at the price of generically requiring more operations (i.e.
additional time). We then study faster methods to extract work and provide a
quantitative relation between the amount of generated multipartite entanglement
and extractable work. Our results suggest a general relation between
entanglement generation and the power of work extraction.

6
The categories of this paper are: astro-ph
15
The categories of this paper are: nucl-ex
5
The categories of this paper are: gr-qc
11
The categories of this paper are: hep-lat
3
The categories of this paper are: physics
23
The categories of this paper are: solv-int
9
The categories of this paper are: nlin
22
The categories of this paper are: chao-dyn
29
The categories of this paper are: funct-an
2
The categories of this paper are: math
12
The categories of this paper are: nucl-th
31
The categories of this paper are: ao-sci
25
The categories of this paper are: patt-sol
36
The categories of this paper are: cmp-lg
17
The categories of this paper are: q-fin
28
The categories of this paper are: alg-geom