This week I have been studying a nice paper about Polyhedra in spacetime.

The paper considers convex spacelike polyhedra oriented in Minkowski space. These are classical analogues of… 1,109 more words

This week I have been studying a nice paper about Polyhedra in spacetime.

The paper considers convex spacelike polyhedra oriented in Minkowski space. These are classical analogues of… 1,109 more words

This week I have continued to study the paper ‘A new realization of quantum geometry‘. In particular I am interested in the proposed forms of the… 366 more words

This week I have been studying the paper ‘A New Realisation of Quantum Geometry’. I’ll review the paper in the next post and follow up that with an analysis of the area operator in the… 120 more words

This week I have been studying recent developments in Group Field Theories. Group field theories are a generalization of matrix models which provide both a… 559 more words

Gerard ‘t Hooft – 1998

ABSTRACT

Trans-Planckian particles are elementary particles accelerated such that their energies surpass the Planck value. There are several reasons to believe that trans-Planckian particles do not represent independent degrees of freedom in Hilbert space, but they are controlled by the cis-Planckian particles. 174 more words

Carlo Rovelli – 2012

ABSTRACT

This is a review paper invited by the journal “Classical and Quantum Gravity” for a “Cluster Issue” on approaches to quantum gravity. 98 more words

Among the various approaches to the quantum gravity challenge, loop quantum gravity proposes a framework for a canonical quantization of general relativity, describing how the 3d geometry evolves in time. 893 more words