Remarks on covariant matrix strings

Laurent Baulieu, Céline Laroche, Nikita Nekrasov

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)


We address the issue of theworldsheet and spacetime covariant formulation for matrix strings. The problem is solved in the limit of vanishing string coupling. To go beyond the gs = 0 limit, we propose a topological quantum field theory as a twisted candidate. Our model involves the generalized octonionic or SU(4) instanton equations defined in eight dimensions for a supersymmetric U(N) Yang-Mills field living on a special holonomy manifold. The question of untwisting this matrix mode into an anomaly free theory enlightens the need for an "extended" 2d-gravity sector, that we suggest could be (partially twisted) w-gravity.

Original languageEnglish
Pages (from-to)119-127
Number of pages9
JournalPhysics Letters B
Issue number1-4
Publication statusPublished - 1999
Externally publishedYes


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