Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Four-Impurity Operators and String Field Theory Vertex in the BMN
  Correspondence   In the context of the Penrose/BMN limit of the AdS/CFT correspondence, we
consider four-impurity BMN operators in Yang-Mills theory, and demonstrate
explicitly their correspondence to four-oscillator states in string theory.
Using the dilatation operator on the gauge-theory side of the correspondence,
we calculate matrix elements between four-impurity states. Since conformal
dimensions of gauge-theory operators correspond to light-cone energies of
string states, these matrix elements may be compared with the string-theory
light-cone Hamiltonian matrix elements calculated in the plane-wave background
using the string field theory vertex. We find that the two calculations agree,
extending the cases of two- and three-impurity operators considered in the
literature using BMN gauge-theory quantum mechanics. The results are also in
agreement with calculations in the literature based on perturbative
gauge-theory methods.

28
The categories of this paper are: alg-geom
31
The categories of this paper are: ao-sci
5
The categories of this paper are: gr-qc
34
The categories of this paper are: chem-ph
20
The categories of this paper are: acc-phys
3
The categories of this paper are: physics
0
The categories of this paper are: hep-ph
6
The categories of this paper are: astro-ph
36
The categories of this paper are: cmp-lg
33
The categories of this paper are: plasm-ph
30
The categories of this paper are: q-alg
22
The categories of this paper are: chao-dyn
12
The categories of this paper are: nucl-th
23
The categories of this paper are: solv-int
2
The categories of this paper are: math
1
The categories of this paper are: cs