Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Steady-state thermodynamics of non-interacting transport beyond weak
  coupling   We investigate the thermodynamics of simple (non-interacting) transport
models beyond the scope of weak coupling. For a single fermionic or bosonic
level -- tunnel-coupled to two reservoirs -- exact expressions for the
stationary matter and energy current are derived from the solutions of the
Heisenberg equations of motion. The positivity of the steady-state entropy
production rate is demonstrated explicitly. Finally, for a configuration in
which particles are pumped upwards in chemical potential by a downward
temperature gradient, we demonstrate that the thermodynamic efficiency of this
process decreases when the coupling strength between system and reservoirs is
increased, as a direct consequence of the loss of a tight coupling between
energy and matter currents.

32
The categories of this paper are: atom-ph
3
The categories of this paper are: physics
35
The categories of this paper are: mtrl-th
11
The categories of this paper are: hep-lat
1
The categories of this paper are: cs
22
The categories of this paper are: chao-dyn
27
The categories of this paper are: comp-gas
9
The categories of this paper are: nlin
26
The categories of this paper are: bayes-an
17
The categories of this paper are: q-fin
0
The categories of this paper are: hep-ph
37
The categories of this paper are: supr-con
25
The categories of this paper are: patt-sol
31
The categories of this paper are: ao-sci
23
The categories of this paper are: solv-int
2
The categories of this paper are: math