activity
20092026
most citedObservables in Loop Quantum Gravity with a cosmological constant

53 citations · 472 across the 22 of their papers we have counts for

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Showing 2011Show all

6 papers · 1 filter

gr-qc2011★ 15 cited

Holomorphic Simplicity Constraints for 4d Riemannian Spinfoam Models

Maité Dupuis, Etera R. Livine

Starting from the reformulation of the classical phase space of Loop Quantum Gravity in terms of spinor variables and spinor networks, we build coherent spin network states and sho…

gr-qc2011★ 24 cited

Spinors and Voros star-product for Group Field Theory: First Contact

Maité Dupuis, Florian Girelli, Etera R. Livine

In the context of non-commutative geometries, we develop a group Fourier transform for the Lie group SU(2). Our method is based on the Schwinger representation of the Lie algebra s…

gr-qc2011★ 45 cited

Holomorphic Lorentzian Simplicity Constraints

Maité Dupuis, Laurent Freidel, Etera R. Livine +1

We develop an Hamiltonian representation of the sl(2,C) algebra on a phase space consisting of N copies of twistors, or bi-spinors. We identify a complete set of global invariants,…

gr-qc2011★ 4 cited

Spin Foam Models for Quantum Gravity and semi-classical limit

Maité Dupuis

The spinfoam framework is a proposal for a regularized path integral for quantum gravity. Spinfoams define quantum space-time structures describing the evolution in time of the spi…

gr-qc2011★ 47 cited

Holomorphic Simplicity Constraints for 4d Spinfoam Models

Maité Dupuis, Etera R. Livine

Within the framework of spinfoam models, we revisit the simplicity constraints reducing topological BF theory to 4d Riemannian gravity. We use the reformulation of SU(2) intertwine…

gr-qc2011★ 1 cited

Boundary State Stability under Spinfoam Evolution for the Quantum 4-Simplex

Maité Dupuis, Etera R. Livine

In the spinfoam framework for quantum gravity, we investigate the conditions to have a physical quantum state for the Barrett-Crane model for the 4d quantum gravity path integral.…