Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Classification of the Entangled States of $2 \times L \times M \times N$   We present a practical entanglement classification scheme for pure state in
form of $2\times L\times M\times N$ under the stochastic local operation and
classical communication (SLOCC), where every inequivalent class of the
entangled quantum states may be sorted out according to its standard form and
the corresponding transformation matrix. This provides a practical method for
determining the interconverting matrix between two SLOCC equivalent entangled
states, and classification examples for some $2\times 4\times M\times N$
systems are also presented.

37
The categories of this paper are: supr-con
7
The categories of this paper are: hep-th
28
The categories of this paper are: alg-geom
2
The categories of this paper are: math
16
The categories of this paper are: stat
3
The categories of this paper are: physics
30
The categories of this paper are: q-alg
27
The categories of this paper are: comp-gas
8
The categories of this paper are: hep-ex
4
The categories of this paper are: cond-mat
10
The categories of this paper are: q-bio
9
The categories of this paper are: nlin
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The categories of this paper are: acc-phys
14
The categories of this paper are: math-ph
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The categories of this paper are: dg-ga
18
The categories of this paper are: econ