Entanglement Suppression, Enhanced Symmetry and a Standard-Model-like Higgs Boson

Autor:	Carena, Marcela, Low, Ian, Wagner, Carlos E. M., Xiao, Ming-Lei
Rok vydání:	2023
Předmět:	High Energy Physics - Phenomenology High Energy Physics - Theory Quantum Physics
Druh dokumentu:	Working Paper
Popis:	We study information-theoretic properties of scalar models containing two Higgs doublets $\Phi_a$, where $a=1,2$ is the flavor quantum number. Considering the 2-to-2 scattering $\Phi_a \Phi_b \to \Phi_c \Phi_d$ as a two-qubit system in the flavor subspace and the S-matrix as a quantum logic gate, we analyze the entanglement power of the S-matrix at the tree-level, in the limit the gauge coupling is turned off. Demanding the suppression of flavor entanglement during the scattering, the perturbative S-matrix in the broken phase can only be in the equivalent class of the Identity gate and the scalar potential exhibits a maximally enhanced $SO(8)$ symmetry acting on the 8 real components of the two doublets. The $SO(8)$ symmetry leads to the alignment limit naturally, giving rise to a Standard-Model-like Higgs boson as a consequence of entanglement suppression. Comment: 8 pages, 1 figure
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2307.08112 Zobrazit plný text záznamu View this record from Arxiv