Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Transport in nanoscale systems: the microcanonical versus
  grand-canonical picture   We analyse a picture of transport in which two large but finite charged
electrodes discharge across a nanoscale junction. We identify a functional
whose minimisation, within the space of all bound many-body wavefunctions,
defines an instantaneous steady state. We also discuss factors that favour the
onset of steady-state conduction in such systems, make a connection with the
notion of entropy, and suggest a novel source of steady-state noise. Finally,
we prove that the true many-body total current in this closed system is given
exactly by the one-electron total current, obtained from time-dependent
density-functional theory.

3
The categories of this paper are: physics
9
The categories of this paper are: nlin
34
The categories of this paper are: chem-ph
28
The categories of this paper are: alg-geom
16
The categories of this paper are: stat
30
The categories of this paper are: q-alg
35
The categories of this paper are: mtrl-th
7
The categories of this paper are: hep-th
23
The categories of this paper are: solv-int
24
The categories of this paper are: dg-ga
13
The categories of this paper are: quant-ph
10
The categories of this paper are: q-bio
21
The categories of this paper are: adap-org
14
The categories of this paper are: math-ph
0
The categories of this paper are: hep-ph
27
The categories of this paper are: comp-gas