Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Periodic Thermodynamics of Open Quantum Systems   The thermodynamics of quantum systems coupled to periodically modulated heat
baths and work reservoirs is developed. By identifying affinities and fluxes,
the first and second law are formulated consistently. In the linear response
regime, entropy production becomes a quadratic form in the affinities.
Specializing to Lindblad-dynamics, we identify the corresponding kinetic
coefficients in terms of correlation functions of the unperturbed dynamics.
Reciprocity relations follow from symmetries with respect to time reversal. The
kinetic coefficients can be split into a classical and a quantum contribution
subject to a new constraint, which follows from a natural detailed balance
condition. This constraint implies universal bounds on efficiency and power of
quantum heat engines. In particular, we show that Carnot efficiency can not be
reached whenever quantum coherence effects are present, i.e., when the
Hamiltonian used for work extraction does not commute with the bare system
Hamiltonian. For illustration, we specialize our universal results to a driven
two-level system in contact with a heat bath of sinusoidally modulated
temperature.

17
The categories of this paper are: q-fin
12
The categories of this paper are: nucl-th
8
The categories of this paper are: hep-ex
22
The categories of this paper are: chao-dyn
23
The categories of this paper are: solv-int
31
The categories of this paper are: ao-sci
33
The categories of this paper are: plasm-ph
30
The categories of this paper are: q-alg
29
The categories of this paper are: funct-an
9
The categories of this paper are: nlin
20
The categories of this paper are: acc-phys
3
The categories of this paper are: physics
24
The categories of this paper are: dg-ga
1
The categories of this paper are: cs
32
The categories of this paper are: atom-ph
2
The categories of this paper are: math