Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Entanglement of two coupled molecules   Entangled states of two coupled polar molecules controlled by laser pulses
are studied theoretically. Schmidt decomposition is used to measure the degree
of entanglement. By varying the pulse shape of the applied laser, transition
from regular to chaotic behavior may occur. This quantum feature is due to the
inference of different phases. Moreover, the entanglement is also found to be
enhanced by increasing the strength of the laser pulses.

26
The categories of this paper are: bayes-an
6
The categories of this paper are: astro-ph
9
The categories of this paper are: nlin
4
The categories of this paper are: cond-mat
25
The categories of this paper are: patt-sol
2
The categories of this paper are: math
37
The categories of this paper are: supr-con
20
The categories of this paper are: acc-phys
31
The categories of this paper are: ao-sci
33
The categories of this paper are: plasm-ph
16
The categories of this paper are: stat
28
The categories of this paper are: alg-geom
19
The categories of this paper are: eess
35
The categories of this paper are: mtrl-th
23
The categories of this paper are: solv-int
34
The categories of this paper are: chem-ph