Outputs (2)

The S-matrix bootstrap. Part III: higher dimensional amplitudes (2019)
Journal Article
Paulos, M. F., Penedones, J., Toledo, J., van Rees, B. C., & Vieira, P. (2019). The S-matrix bootstrap. Part III: higher dimensional amplitudes. Journal of High Energy Physics, 2019(12), Article 40. https://doi.org/10.1007/jhep12%282019%29040

We consider constraints on the S-matrix of any gapped, Lorentz invariant quantum field theory in 3+1 dimensions due to crossing symmetry, analyticity and unitarity. We extremize cubic couplings, quartic couplings and scattering lengths relevant for t... Read More about The S-matrix bootstrap. Part III: higher dimensional amplitudes.

The S-matrix bootstrap IV: multiple amplitudes (2019)
Journal Article
Homrich, A., Penedones, J., Toledo, J., van Rees, B. C., & Vieira, P. (2019). The S-matrix bootstrap IV: multiple amplitudes. Journal of High Energy Physics, 2019(11), Article 76. https://doi.org/10.1007/jhep11%282019%29076

We explore the space of consistent three-particle couplings in ℤ2-symmetric two-dimensional QFTs using two first-principles approaches. Our first approach relies solely on unitarity, analyticity and crossing symmetry of the two-to-two scattering ampl... Read More about The S-matrix bootstrap IV: multiple amplitudes.