Static Gauge and Energy Spectrum of Single-mode Strings in AdS_5xS^5
Citation:
Sergey Frolov, Martin Heinze, George Jorjadze, and Jan Plefka., Static Gauge and Energy Spectrum of Single-mode Strings in AdS_5xS, 5, High Energy Physics - Theory, 2013, 1-24Download Item:
1310.5052v1.pdf (Published (author's copy) - Peer Reviewed) 1.197Mb
Abstract:
Motivated by the notorious di culties in determining the rst quantum corrections
to the spectrum of short strings in
AdS
5
S
5
from rst principles, we study closed
bosonic strings in this background employing a static gauge. In this gauge the
world-sheet Hamiltonian density is constant along the extension of the string and
directly proportional to the square of the spacetime energy. We quantize this sys-
tem in a minisuperspace approach, in which we consider only a single
AdS
5
string
mode excitation next to an arbitrary particle like zero-mode contribution in the full
AdS
5
S
5
background. We determine the quantum spectrum using this method to
the next-to-next-to-leading order in the large 't Hooft coupling expansion. We ar-
gue for an ordering prescription which should arise from supersymmetrization and
indeed recover the integrability based predictions for the spectrum of the lightest
excitation, dual to the Konishi eld scaling dimensions. The higher excitations
fail to agree, but this is shown to be a consequence of the string mode truncation
employed. Despite this simple setup, our system reveals intriguing features, such
as a close connection to particles in
AdS 6 , classical integrability and preservation
of the isometries of
AdS 5 S 5 at the quantum level
Author's Homepage:
http://people.tcd.ie/frolovsDescription:
PUBLISHED
Author: FROLOV, SERGEY
Type of material:
Journal ArticleSeries/Report no:
High Energy Physics - Theory;Availability:
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