Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Classical and quantum integrability in AdS(2)/CFT(1)   We investigate the type IIA string on AdS(2)xS(2)xT(6) supported by RR-flux
which describes the gravitational side of the AdS(2)/CFT(1) correspondence.
While the four-dimensional part AdS(2)xS(2) can be realized as a supercoset,
the full superstring has both coset and non-coset excitations, the latter
giving rise to massless worldsheet modes, a somewhat novel feature in AdS/CFT.
The string is nevertheless known to be integrable at the classical level. In
this paper we perform several computations checking aspects of both classical
and quantum string integrability. At the classical level we compute energies
for the near BMN string and successfully match these against Bethe ansatz
predictions. Furthermore, integrability dictates a magnon dispersion relation
which we compare with the poles of loop corrected propagators, at both the one
and two-loop level. At one loop, where only tadpole diagrams contribute, we
find that the bosonic and fermionic contributions sum up to zero. Under the
assumption of worldsheet supersymmetry, we then compute the two-loop sunset
diagram in the near flat space limit. As in AdS(5)xS(5) we find that the result
fits nicely into the sine-square structure of the dispersion relation.

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The categories of this paper are: acc-phys
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The categories of this paper are: nucl-th
8
The categories of this paper are: hep-ex
28
The categories of this paper are: alg-geom
33
The categories of this paper are: plasm-ph
9
The categories of this paper are: nlin
10
The categories of this paper are: q-bio
25
The categories of this paper are: patt-sol
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The categories of this paper are: adap-org
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The categories of this paper are: solv-int
32
The categories of this paper are: atom-ph
3
The categories of this paper are: physics
1
The categories of this paper are: cs
29
The categories of this paper are: funct-an
24
The categories of this paper are: dg-ga
15
The categories of this paper are: nucl-ex