Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Role of trapping and crowding as sources of negative differential
  mobility   Increasing the crowding in an environment does not necessarily trigger
negative differential mobility of strongly pushed particles. Moreover, the
choice of the model, in particular the kind of microscopic jump rates, may be
very relevant in determining the mobility. We support these points via simple
examples and we therefore address recent claims saying that crowding in an
environment is likely to promote negative differential mobility. Trapping of
tagged particles enhanced by increasing the force remains the mechanism
determining a drift velocity not monotonous in the driving force.

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The categories of this paper are: cs
13
The categories of this paper are: quant-ph
6
The categories of this paper are: astro-ph
22
The categories of this paper are: chao-dyn
7
The categories of this paper are: hep-th
34
The categories of this paper are: chem-ph
12
The categories of this paper are: nucl-th
36
The categories of this paper are: cmp-lg
8
The categories of this paper are: hep-ex
32
The categories of this paper are: atom-ph
24
The categories of this paper are: dg-ga
5
The categories of this paper are: gr-qc
2
The categories of this paper are: math
16
The categories of this paper are: stat
21
The categories of this paper are: adap-org
19
The categories of this paper are: eess