Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Quantum control of nonlinear thermoelectricity at the nanoscale   We theoretically study how one can control and enhance nonlinear
thermoelectricity by regulating quantum coherence in nanostructures such as a
quantum dot system or a single-molecule junction. In nanostructures, the
typical temperature scale is much smaller than the resonance width, which
largely suppresses thermoelectric effects. Yet we demonstrate one can achieve a
reasonably good thermoelectric performance by regulating quantum coherence.
Engaging a quantum-dot interferometer (a quantum dot embedded in the ring
geometry) as a heat engine, we explore the idea of thermoelectric enhancement
induced by the Fano resonance. We develop an analytical treatment of fully
nonlinear responses for a dot with or without strong interaction. Based on the
microscopic model with the nonequilibrium Green function technique, we show how
to enhance efficiency and/or output power as well as where to locate an optimal
gate voltage. We also argue how to assess nonlinear thermoelectricity by
linear-response quantities.

20
The categories of this paper are: acc-phys
15
The categories of this paper are: nucl-ex
5
The categories of this paper are: gr-qc
30
The categories of this paper are: q-alg
31
The categories of this paper are: ao-sci
25
The categories of this paper are: patt-sol
22
The categories of this paper are: chao-dyn
23
The categories of this paper are: solv-int
8
The categories of this paper are: hep-ex
9
The categories of this paper are: nlin
27
The categories of this paper are: comp-gas
29
The categories of this paper are: funct-an
11
The categories of this paper are: hep-lat
2
The categories of this paper are: math
37
The categories of this paper are: supr-con
19
The categories of this paper are: eess