S
Simone Speziale
Researcher at Aix-Marseille University
Publications - 114
Citations - 5485
Simone Speziale is an academic researcher from Aix-Marseille University. The author has contributed to research in topics: Quantum gravity & Spin foam. The author has an hindex of 39, co-authored 112 publications receiving 4796 citations. Previous affiliations of Simone Speziale include Perimeter Institute for Theoretical Physics & Sapienza University of Rome.
Papers
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New spinfoam vertex for quantum gravity
Etera R. Livine,Simone Speziale +1 more
TL;DR: In this paper, a spinfoam vertex is introduced to be used in models of 4D quantum gravity based on SU(2) and SO(4) BF theory plus constraints.
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Twisted geometries: A geometric parametrization of SU(2) phase space
Laurent Freidel,Simone Speziale +1 more
TL;DR: In this article, the authors show how to parametrize this phase space in terms of quantities describing the intrinsic and extrinsic geometry of the triangulation dual to the graph.
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Polyhedra in loop quantum gravity
TL;DR: In this article, it was shown that a theorem by Minkowski allows us to interpret generic configurations in this space as bounded convex polyhedra in 3 : a polyhedron is uniquely described by the areas and normals to its faces.
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Consistently Solving the Simplicity Constraints for Spinfoam Quantum Gravity
Etera R. Livine,Simone Speziale +1 more
TL;DR: In this article, an independent derivation of the Engle-Pereira-Rovelli spinfoam model for quantum gravity was given, using the coherent state techniques introduced earlier in [arXiv:0705.2388].
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Graviton propagator in loop quantum gravity
TL;DR: In this article, the graviton propagator in loop quantum gravity was computed using the spinfoam formalism, up to some second-order terms in the expansion parameter, using the second order terms of the expansion term.