Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Universal trade-off relation between power and efficiency for heat
  engines   For a general thermodynamic system described as a Markov process, we prove a
general lower bound for dissipation in terms of the square of the heat current,
thus establishing that nonvanishing current inevitably implies dissipation.
This leads to a universal trade-off relation between efficiency and power, with
which we rigorously prove that a heat engine with nonvanishing power never
attains the Carnot efficiency. Our theory applies to systems arbitrarily far
from equilibrium, and does not assume any specific symmetry of the model.

22
The categories of this paper are: chao-dyn
0
The categories of this paper are: hep-ph
31
The categories of this paper are: ao-sci
23
The categories of this paper are: solv-int
36
The categories of this paper are: cmp-lg
29
The categories of this paper are: funct-an
16
The categories of this paper are: stat
3
The categories of this paper are: physics
30
The categories of this paper are: q-alg
1
The categories of this paper are: cs
7
The categories of this paper are: hep-th
5
The categories of this paper are: gr-qc
26
The categories of this paper are: bayes-an
6
The categories of this paper are: astro-ph
35
The categories of this paper are: mtrl-th
11
The categories of this paper are: hep-lat