Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Dephasing in a quantum pump   We study how dephasing affects the distribution of the dc current pumped
through a chaotic quantum dot. We introduce dephasing by the addition of a
voltage probe to the quantum dot, treating both the case of controlled
dephasing (when the voltage probe is coupled to the dot via a ballistic point
contact with a conductance that is increased stepwise) and intrinsic dephasing
(for which the voltage probe serves as a phenomelogical model). While dephasing
eventually suppresses the dc current through the dot, we also find that, for a
quantum dot with single-mode point contacts, a small amount of dephasing
actually decreases the likelihood of a zero pumped current.

34
The categories of this paper are: chem-ph
28
The categories of this paper are: alg-geom
17
The categories of this paper are: q-fin
33
The categories of this paper are: plasm-ph
31
The categories of this paper are: ao-sci
32
The categories of this paper are: atom-ph
11
The categories of this paper are: hep-lat
26
The categories of this paper are: bayes-an
36
The categories of this paper are: cmp-lg
20
The categories of this paper are: acc-phys
25
The categories of this paper are: patt-sol
7
The categories of this paper are: hep-th
22
The categories of this paper are: chao-dyn
14
The categories of this paper are: math-ph
29
The categories of this paper are: funct-an
15
The categories of this paper are: nucl-ex