Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Counterpropagating dipole-mode vector soliton   We experimentally observe a counterpropagating dipole-mode vector soliton in
a photorefractive SBN:60Ce crystal. We investigate the transient formation
dynamics and show that the formation process differs significantly from the
copropagating geometry. The experimental results are compared with fully
anisotropic numerical simulations which show good qualitative agreement.

19
The categories of this paper are: eess
23
The categories of this paper are: solv-int
16
The categories of this paper are: stat
31
The categories of this paper are: ao-sci
29
The categories of this paper are: funct-an
10
The categories of this paper are: q-bio
14
The categories of this paper are: math-ph
37
The categories of this paper are: supr-con
20
The categories of this paper are: acc-phys
2
The categories of this paper are: math
5
The categories of this paper are: gr-qc
6
The categories of this paper are: astro-ph
24
The categories of this paper are: dg-ga
12
The categories of this paper are: nucl-th
25
The categories of this paper are: patt-sol
27
The categories of this paper are: comp-gas