Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Dynamics, Rectification, and Fractionalization for Colloids on Flashing
  Substrates   We show that a rich variety of dynamic phases can be realized for mono- and
bidisperse mixtures of interacting colloids under the influence of a symmetric
flashing periodic substrate. With the addition of dc or ac drives, phase
locking, jamming, and new types of ratchet effects occur. In some regimes we
find that the addition of a non-ratcheting species increases the velocity of
the ratcheting particles. We show that these effects occur due to the
collective interactions of the colloids.

34
The categories of this paper are: chem-ph
23
The categories of this paper are: solv-int
30
The categories of this paper are: q-alg
7
The categories of this paper are: hep-th
1
The categories of this paper are: cs
16
The categories of this paper are: stat
6
The categories of this paper are: astro-ph
18
The categories of this paper are: econ
20
The categories of this paper are: acc-phys
37
The categories of this paper are: supr-con
5
The categories of this paper are: gr-qc
27
The categories of this paper are: comp-gas
31
The categories of this paper are: ao-sci
2
The categories of this paper are: math
13
The categories of this paper are: quant-ph
17
The categories of this paper are: q-fin