paper

Poincare' invariance for continuous-time histories

arXiv:gr-qc/0104053 · doi:10.1063/1.1471924

Abstract

We show that the relativistic analogue of the two types of time translation in a non-relativistic history theory is the existence of two distinct Poincaré groups. The `internal' Poincaré group is analogous to the one that arises in the standard canonical quantisation scheme; the `external' Poincaré group is similar to the group that arises in a Lagrangian description of the standard theory. In particular, it performs explicit changes of the spacetime foliation that is implicitly assumed in standard canonical field theory.

32 pages, Latex. In a non-relativistic history theory there exist two distinct Poincare' groups. The `internal' Poincare' group is analogous to the one that arises in standard canonical quantisation scheme; the `external' Poincare' group performs explicit changes of the spacetime foliation that is implicitly assumed in standard canonical field theory

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