Acausal PGT modes and the nonlinear constraint effect

Hsin Chen, James M. Nester, Y. O. Hwei-Jang

Research output: Contribution to journalArticlepeer-review

37 Citations (Scopus)


The effect of constraints on the initial value and acausal propagation problems in the Poincaré Gauge Theory is considered with the aid of the linearized theory and the Hamiltonian analysis. To linear order there are no difficulties, however non-linearities in any extra "if" constraints can cause serious problems involving a change in the number and type of constraints as well as acausal propagation modes. Specific examples are given. Only very special parameter choices are expected to avoid these problems. A similar story is predicted for most other gauge theories of gravity. This type of analysis holds promise as a strong test for alternate gravity theories.

Original languageEnglish
Pages (from-to)961-970
Number of pages10
JournalActa Physica Polonica B
Issue number4
Publication statusPublished - 1998 Dec 1

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)


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