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hep-th2026
The causal set reduction formula
Stav Zalel
We derive a reduction formula for matrix elements on a causal set background. We derive an infinite tower of relations between correlators, akin to the Schwinger-Dyson equations of…
hep-th2024★ 4 cited
In-in correlators and scattering amplitudes on a causal set
Emma Albertini, Fay Dowker, Arad Nasiri +1
Causal set theory is an approach to quantum gravity in which spacetime is fundamentally discrete at the Planck scale and takes the form of a Lorentzian lattice, or "causal set", fr…
hep-th2020
Dirac, Majorana, Weyl in 4d
L. Bonora, R. Soldati, S. Zalel
This is a review of some elementary properties of Dirac, Weyl and Majorana spinors in 4d. We focus in particular on the differences between massless Dirac and Majorana fermions, on…