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Introduction to Dirac observables

MPS-Authors

Giesel,  Kristina
Quantum Gravity & Unified Theories, AEI-Golm, MPI for Gravitational Physics, Max Planck Society;

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Citation

Giesel, K. (2008). Introduction to Dirac observables. International Journal of Modern Physics A, 23(8), 1190-1199.


Cite as: https://hdl.handle.net/11858/00-001M-0000-0013-62FA-F
Abstract
We give a brief introduction to Dirac observables and review the general construction of such Dirac observables for constrained systems in the framework of the Relational Formalism introduced by Rovelli1 and further mathematically developed by Dittrich.2 Finally we birefly discuss appropriate clocks for General Relativity and the evolution of observables generated by a so called physical Hamiltonian.