Article

Journal of High Energy Physics

, 2012:98

First online:

Aspects of plane wave (matrix) string dynamics

  • Matthias BlauAffiliated withAlbert Einstein Center for Fundamental Physics, Institute for Theoretical Physics, Bern University
  • , Martin O’LoughlinAffiliated withUniversity of Nova Gorica Email author 
  • , Lorenzo SeriAffiliated withSISSA

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Abstract

We analyse two issues that arise in the context of (matrix) string theories in plane wave backgrounds, namely (1) the use of Brinkmann- versus Rosen-variables in the quantum theory for general plane waves (which we settle conclusively in favour of Brinkmann variables), and (2) the regularisation of the quantum dynamics for a certain class of singular plane waves (discussing the benefits and limitations of regularisations of the plane-wave metric itself).

Keywords

Penrose limit and pp-wave background M(atrix) Theories Spacetime Singularities