Can one restore Lorentz invariance in quantum N = 2 string?

Stefano Bellucci, Anton Galajinsky

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)


We consider quantum N = 2 string embedded into the N = 4 topological framework from the perspective of the old covariant quantisation. Making use of the causality and cyclic symmetry of tree amplitudes we argue that no Lorentz covariant boson emission vertex can be constructed within the N = 4 topological formalism.

Original languageEnglish
Pages (from-to)151-162
Number of pages12
JournalNuclear Physics B
Issue number1-2
Publication statusPublished - 20 May 2002


  • Lorentz symmetry
  • N = 4 topological string
  • Quantum N = 2 string

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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