Barrett, John W.

Lorentzian spin foam amplitudes: graphical calculus and asymptotics

Barrett, J. W., Dowdall, R. J., Fairbairn, W. J., Hellmann, F., & Pereira, R. (2010) · Classical and Quantum Gravity

Noncommutative and Quantum Gravity TheoriesRelativity and Gravitational Theory

Cited by 247

Asymptotic analysis of the Engle–Pereira–Rovelli–Livine four-simplex amplitude

Barrett, J. W., Dowdall, R. J., Fairbairn, W. J., Gomes, H., & Hellmann, F. (2009) · Journal of Mathematical Physics

Noncommutative and Quantum Gravity TheoriesRelativity and Gravitational Theory

Cited by 224

The Quantum Tetrahedron in 3 and 4 Dimensions

Baez, J. C., & Barrett, J. W. (1999) · arXiv

Noncommutative and Quantum Gravity TheoriesRelativity and Gravitational Theory

Cited by 146

The quantum tetrahedron in 3 and 4 dimensions

Baez, J. C., & Barrett, J. W. (1999) · Advances in Theoretical and Mathematical Physics

Noncommutative and Quantum Gravity TheoriesRelativity and Gravitational Theory

Cited by 146

The asymptotics of an amplitude for the 4-simplex

Barrett, J. W., & Williams, R. M. (1999) · Advances in Theoretical and Mathematical Physics

Noncommutative and Quantum Gravity TheoriesRelativity and Gravitational Theory

Cited by 108