Han M, Huang Z, Liu H, Qu D (2020)
Publication Type: Journal article
Publication year: 2020
Book Volume: 102
Journal Issue: 12
DOI: 10.1103/PhysRevD.102.124010
We numerically study the next-to-leading order corrections of the Lorentzian Engle-Pereira-RovelliLivine (EPRL) 4-simplex amplitude in the large- j expansions. We perform large- j expansions of Lorentzian EPRL 4-simplex amplitudes with two different types of boundary states, the coherent intertwiners and the coherent spin-network, and numerically compute the leading-order and the next-to-leading order O(1/j) contributions of these amplitudes. We also study the dependences of these O(1/j) corrections on the Barbero-Inunirzi parameter gamma. We show that they, as functions of gamma, stabilize to finite real constants as gamma -> infinity. Lastly, we obtain the quantum corrections to the Regge action because of the O(1/j) contribution to the spinfoam amplitude.
APA:
Han, M., Huang, Z., Liu, H., & Qu, D. (2020). Numerical computations of next-to-leading order corrections in spinfoam large-j asymptotics. Physical Review D, 102(12). https://doi.org/10.1103/PhysRevD.102.124010
MLA:
Han, Muxin, et al. "Numerical computations of next-to-leading order corrections in spinfoam large-j asymptotics." Physical Review D 102.12 (2020).
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