Partial and complete observables for Hamiltonian constrained systems
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Publication:2461574
DOI10.1007/S10714-007-0495-2zbMATH Open1145.83015arXivgr-qc/0411013OpenAlexW2098215080WikidataQ56139205 ScholiaQ56139205MaRDI QIDQ2461574
Author name not available (Why is that?)
Publication date: 28 November 2007
Published in: (Search for Journal in Brave)
Abstract: We will pick up the concepts of partial and complete observables introduced by Rovelli in order to construct Dirac observables in gauge systems. We will generalize these ideas to an arbitrary number of gauge degrees of freedom. Different methods to calculate such Dirac observables are developed. For background independent field theories we will show that partial and complete observables can be related to Kuchav{r}'s Bubble Time Formalism. Moreover one can define a non-trivial gauge action on the space of complete observables and also state the Poisson brackets of these functions. Additionally we will investigate, whether it is possible to calculate Dirac observables starting with partially invariant partial observables, for instance functions, which are invariant under the spatial diffeomorphism group.
Full work available at URL: https://arxiv.org/abs/gr-qc/0411013
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