Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Transient charge and energy flow in the wide-band limit   The wide-band limit is a commonly used approximation to analyze transport
through nanoscale devices. In this work we investigate its applicability to the
study of charge and heat transport through molecular break junctions exposed to
voltage biases and temperature gradients. We find that while this approximation
faithfully describes the long-time charge and heat transport, it fails to
characterize the short-time behavior of the junction. In particular, we find
that the charge current flowing through the device shows a discontinuity when a
temperature gradient is applied, while the energy flow is discontinuous when a
voltage bias is switched on and even diverges when the junction is exposed to
both a temperature gradient and a voltage bias. We provide an explanation for
this pathological behavior and propose two possible solutions to this problem.

9
The categories of this paper are: nlin
30
The categories of this paper are: q-alg
19
The categories of this paper are: eess
21
The categories of this paper are: adap-org
29
The categories of this paper are: funct-an
34
The categories of this paper are: chem-ph
37
The categories of this paper are: supr-con
28
The categories of this paper are: alg-geom
23
The categories of this paper are: solv-int
25
The categories of this paper are: patt-sol
5
The categories of this paper are: gr-qc
36
The categories of this paper are: cmp-lg
13
The categories of this paper are: quant-ph
22
The categories of this paper are: chao-dyn
31
The categories of this paper are: ao-sci
10
The categories of this paper are: q-bio