Entanglement minimization in hadronic scattering with pions

Abstract

Recent work [1] conjectured that entanglement is minimized in low-energy hadronic scattering processes. It was shown that the minimization of the entanglement power (EP) of the low-energy baryon-baryon S-matrix implies novel spin-flavor symmetries that are distinct from large-N c QCD predictions and are confirmed by high-precision lattice QCD simulations. Here the conjecture of minimal entanglement is investigated for scattering processes involving pions and nucleons. The EP of the Smatrix is constructed for the ππ and πN systems, and the consequences of minimization of entanglement are discussed and compared with large-N c QCD expectations.

Bell violation in $2\rightarrow 2$ scattering in photon, gluon and graviton EFTs

“…These observations have motivated the study of entanglement in 2 → 2 scattering in high energy physics [19][20][21], particularly in the context of Effective Field Theory (EFT) [22][23][24][25]. The existence of higher dimensional operators in an EFT can modify the degree of entanglement in the final scattered states, which might act as a possible probe of new physics.…”