Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Optimization of electron pumping by harmonic mixing   For a symmetric bridge coupled to infinite leads, in the presence of a
dipole-coupled external ac-field with harmonic mixing, we solve the
Schr\"odinger equation in the time-domain using open boundary conditions as
well as in the energy-domain using Floquet scattering theory. As this potential
breaks parity and generalized parity, we find a non-vanishing average current.
We then optimize the relative amplitude ratio between the fundamental and the
second harmonic leading to a maximum in the pump current.

8
The categories of this paper are: hep-ex
17
The categories of this paper are: q-fin
26
The categories of this paper are: bayes-an
11
The categories of this paper are: hep-lat
0
The categories of this paper are: hep-ph
10
The categories of this paper are: q-bio
24
The categories of this paper are: dg-ga
14
The categories of this paper are: math-ph
12
The categories of this paper are: nucl-th
34
The categories of this paper are: chem-ph
29
The categories of this paper are: funct-an
16
The categories of this paper are: stat
19
The categories of this paper are: eess
37
The categories of this paper are: supr-con
18
The categories of this paper are: econ
9
The categories of this paper are: nlin