Il Nuovo Cimento B (1971-1996)

, Volume 110, Issue 10, pp 1137–1152 | Cite as

Space-time covariant form of Ashtekar’s constraints

  • Giampiero Esposito
  • Gabriele Gionti
  • Cosimo Stornaiolo


The Lagrangian formulation of classical field theories and, in particular, general relativity leads to a coordinate-free, fully covariant analysis of these constrained systems. This paper applies multisymplectic techniques to obtain the analysis of Palatini and self-dual gravity theories as constrained systems, which have been studied so far in the Hamiltonian formalism. The constraint equations are derived while paying attention to boundary terms, and the Hamiltonian constraint turns out to be linear in the multimomenta. The equivalence with Ashtekar’s formalism is also established. The whole constraint analysis, however, remains covariant in that the multimomentum map is evaluated onany space-like hypersurface. This study is motivated by the non-perturbative quantization programme of general relativity.


PACS 04.20.Cv Fundamental problems and general formalism PACS 04.60.Ds Canonical quantization 


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Copyright information

© Società Italiana di Fisica 1995

Authors and Affiliations

  • Giampiero Esposito
    • 1
    • 2
  • Gabriele Gionti
    • 3
  • Cosimo Stornaiolo
    • 1
    • 2
  1. 1.INFNSezione di Napoli-Mostra d’OltremareNapoliItaly
  2. 2.Dipartimento di Scienze FisicheNapoliItaly
  3. 3.SISSATriesteItaly

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