Problem of time in quantum gravity

General covariance in gravity at a Lifshitz point

(2011) Petr Hořava   CLASSICAL AND QUANTUM GRAVITY

On the semiclassical approach to quantum cosmology: relational particle model

(2011) Edward Anderson   CLASSICAL AND QUANTUM GRAVITY

An effective approach to the problem of time

(2011) Martin Bojowald et al.   CLASSICAL AND QUANTUM GRAVITY

U(N) coherent states for loop quantum gravity

(2011) Laurent Freidel et al.   JOURNAL OF MATHEMATICAL PHYSICS

The semiclassical limit of causal dynamical triangulations

(2011) J. Ambjørn et al.   NUCLEAR PHYSICS B

Lorentzian spin foam amplitudes: graphical calculus and asymptotics

(2010) John W Barrett et al.   CLASSICAL AND QUANTUM GRAVITY

A topos formulation of history quantum theory

(2010) C. Flori   JOURNAL OF MATHEMATICAL PHYSICS

Jacobi’s principle and the disappearance of time

(2010) Sean Gryb   PHYSICAL REVIEW D

Extended Hořava gravity and Einstein-aether theory

(2010) Ted Jacobson   PHYSICAL REVIEW D

Consistent Extension of Hořava Gravity

(2010) D. Blas et al.   PHYSICAL REVIEW LETTERS

CDT meets Hořava–Lifshitz gravity

(2010) J. Ambjørn et al.   PHYSICS LETTERS B

Quantum Machian time in toy models of gravity

(2009) Sean Gryb   CLASSICAL AND QUANTUM GRAVITY

Stable homology as an indicator of manifoldlikeness in causal set theory

(2009) Seth Major et al.   CLASSICAL AND QUANTUM GRAVITY

RECORDS THEORY

(2009) EDWARD ANDERSON   INTERNATIONAL JOURNAL OF MODERN PHYSICS D

Cuscuton and low-energy limit of Hořava-Lifshitz gravity

(2009) Niayesh Afshordi   PHYSICAL REVIEW D

Conditional probabilities with Dirac observables and the problem of time in quantum gravity

(2009) Rodolfo Gambini et al.   PHYSICAL REVIEW D

Physical evolution in loop quantum cosmology: The example of the vacuum Bianchi I model

(2009) Mercedes Martín-Benito et al.   PHYSICAL REVIEW D

Probabilities in quantum cosmological models: A decoherent histories analysis using a complex potential

(2009) J. J. Halliwell   PHYSICAL REVIEW D

Spectral geometry as a probe of quantum spacetime

(2009) Dario Benedetti et al.   PHYSICAL REVIEW D

Quantum gravity at a Lifshitz point

(2009) Petr Hořava   PHYSICAL REVIEW D

Spectral Dimension of the Universe in Quantum Gravity at a Lifshitz Point

(2009) Petr Hořava   PHYSICAL REVIEW LETTERS

A topos foundation for theories of physics: I. Formal languages for physics

(2008) A. Döring et al.   JOURNAL OF MATHEMATICAL PHYSICS

Covariance and time regained in canonical general relativity

(2008) I. Kouletsis   PHYSICAL REVIEW D