On light-cone SFT contact terms in a plane wave

Radu Roiban, Marcus Spradlin, Anastasia Volovich

Research output: Contribution to journalArticlepeer-review

14 Scopus citations


Testing the BMN correspondence at non-zero string coupling gs requires a one-loop string field theory calculation. At order gs 2, matrix elements of the light-cone string field theory hamiltonian between single-string states receive two contributions: the iterated cubic interaction, and a contact term {Q, Q̄} whose presence is dictated by supersymmetry. In this paper we calculate the leading large μp +α′ contribution from both terms for the set of intermediate states with two string excitations. We find precise agreement with the basis-independent order g22 results from gauge theory.

Original languageEnglish (US)
Pages (from-to)1397-1409
Number of pages13
JournalJournal of High Energy Physics
Issue number10
StatePublished - Oct 1 2003

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics


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