Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Switching dynamics in cholesteric blue phases   Blue phases are networks of disclination lines, which occur in cholesteric
liquid crystals near the transition to the isotropic phase. They have recently
been used for the new generation of fast switching liquid crystal displays.
Here we study numerically the steady states and switching hydrodynamics of blue
phase I (BPI) and blue phase II (BPII) cells subjected to an electric field.
When the field is on, there are three regimes: for very weak fields (and strong
anchoring at the boundaries) the blue phases are almost unaffected, for
intermediate fields the disclinations twist (for BPI) and unzip (for BPII),
whereas for very large voltages the network dissolves in the bulk of the cell.
Interestingly, we find that a BPII cell can recover its original structure when
the field is switched off, whereas a BPI cell is found to be trapped more
easily into metastable configurations. The kinetic pathways followed during
switching on and off entails dramatic reorganisation of the disclination
networks. We also discuss the effect of changing the director field anchoring
at the boundary planes and of varying the direction of the applied field.

22
The categories of this paper are: chao-dyn
10
The categories of this paper are: q-bio
17
The categories of this paper are: q-fin
19
The categories of this paper are: eess
12
The categories of this paper are: nucl-th
20
The categories of this paper are: acc-phys
15
The categories of this paper are: nucl-ex
37
The categories of this paper are: supr-con
26
The categories of this paper are: bayes-an
6
The categories of this paper are: astro-ph
28
The categories of this paper are: alg-geom
25
The categories of this paper are: patt-sol
16
The categories of this paper are: stat
36
The categories of this paper are: cmp-lg
29
The categories of this paper are: funct-an
21
The categories of this paper are: adap-org