The Hessian in Spin Foam Models

Kamiński W, Sahlmann H (2019)

Publication Type: Journal article

Publication year: 2019


DOI: 10.1007/s00023-019-00839-7


We fill one of the remaining gaps in the asymptotic analysis of the vertex amplitudes of the Engle–Pereira–Rovelli–Livine (EPRL) spin foam models: We show that the Hessian is nondegenerate for the stationary points that corresponds to geometric nondegenerate 4 simplices. Our analysis covers the case when all faces are spacelike.

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Kamiński, W., & Sahlmann, H. (2019). The Hessian in Spin Foam Models. Annales Henri Poincaré.


Kamiński, Wojciech, and Hanno Sahlmann. "The Hessian in Spin Foam Models." Annales Henri Poincaré (2019).

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