74 citations · 88 across the 6 of their papers we have counts for
Showing 2023 · hep-thShow all
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hep-th2023
-matrix positivity without Lorentz invariance: a case study
Lam Hui, Ioanna Kourkoulou, Alberto Nicolis +2
We investigate the analytic structure of scattering amplitudes in theories in which Lorentz invariance is spontaneously broken. We do so by computing and studying the S-matrix for…
hep-th2023★ 1 cited
Apparently superluminal superfluids
Ioanna Kourkoulou, Michael J. Landry, Alberto Nicolis +1
We consider the superfluid phase of a specific renormalizable relativistic quantum field theory. We prove that, within the regime of validity of perturbation theory and of the supe…