Bits, matrices and 1/N

Research output: Contribution to journalArticlepeer-review

20 Scopus citations


We propose a simple string bit formalism for interacting strings in a plane wave background, in terms of supersymmetric quantum mechanics with a symmetric product target-space. We construct the light-cone supersymmetry generators and hamiltonian at finite string coupling. We find a precise match between string amplitudes and the non-planar corrections to the correlation functions of BMN operators computed from gauge theory, and conjecture that this correspondence extends to all orders in perturbation theory. We also give a simple RG explanation for why the effective string coupling is g2 = J 2/N instead of gs = gym2.

Original languageEnglish (US)
Pages (from-to)1217-1230
Number of pages14
JournalJournal of High Energy Physics
Issue number12
StatePublished - Dec 1 2003

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics


  • 1/N Expansion
  • Penrose limit and pp-wave background


Dive into the research topics of 'Bits, matrices and 1/N'. Together they form a unique fingerprint.

Cite this