Exploring the spectrum of planar AdS4/CFT3 at finite coupling

Diego Bombardelli, Andrea Cavaglia, Riccardo Conti, R Tateo

Research output: Contribution to journalArticlepeer-review

19 Citations (Scopus)
49 Downloads (Pure)

Abstract

The Quantum Spectral Curve (QSC) equations for planar N = 6 superconformal Chern-Simons (SCS) are solved numerically at finite values of the coupling
constant for states in the sl(2|1) sector.
New weak coupling results for conformal dimensions of operators outside the sl(2)-like sector are obtained by adapting a recently proposed algorithm for the QSC perturbative solution. Besides being interesting in their own right, these perturbative results are necessary initial inputs for the numerical algorithm to converge on the correct solution. The non-perturbative numerical outcomes nicely interpolate between the weak coupling and the known semiclassical expansions, and novel strong coupling exact results are deduced from the numerics. Finally, the existence of contour crossing singularities in the TBA
equations for the operator 20 is ruled out by our analysis.
The results of this paper are an important test of the QSC formalism for this model, open the way to new quantitative studies and provide further evidence in favour of the conjectured weak/strong coupling duality between N = 6 SCS and type IIA superstring theory on AdS4 ×CP3. Attached to the arXiv submission, a Mathematica implementation of the numerical method and ancillary files containing the numerical results are provided.
Original languageEnglish
JournalJournal of High Energy Physics
DOIs
Publication statusPublished - 20 Apr 2018

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