119 citations · 163 across the 5 of their papers we have counts for
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gr-qc2018
A local quantum Mach principle and the metricity of spacetime
Philipp A Hoehn, Markus P Mueller, Christian Pfeifer +1
We revisit the old question of what distinguishes the formulation of spacetime geometry in terms of a Lorentzian metric physically from more general geometric structures. Our appro…
gr-qc2018
Switching internal times and a new perspective on the 'wave function of the universe'
Philipp A Hoehn
Despite its importance in general relativity, a quantum notion of general covariance has not yet been established in quantum gravity and cosmology, where, given the a priori absenc…
gr-qc2010★ 119 cited
Effective approach to the problem of time: general features and examples
Martin Bojowald, Philipp A Hoehn, Artur Tsobanjan
The effective approach to quantum dynamics allows a reformulation of the Dirac quantization procedure for constrained systems in terms of an infinite-dimensional constrained system…