4pm - 5pm: A Superalgebra Within:  representations of lightest standard model particles form a Z_2^5-graded algebra

It is demonstrated how a set of particle representations, familiar from the Standard Model, collectively form a superalgebra.  Those representations mirroring the behaviour of the Standard Model's gauge bosons, and three generations of fermions, are each included in this algebra, with exception only to those irreps involving the top quark.  This superalgebra is isomorphic to the Euclidean Jordan algebra of $16\times 16$ hermitian matrices, $H_{16}(\mathbb{C}),$ and is generated by division algebras.  The division algebraic substructure 

(1)  enables a natural factorization between internal and spacetime symmetries, and   

(2)  allows for the definition of a  $\mathbb{Z}_2^5$ grading on the algebra.  

Those internal symmetries respecting this substructure are found to be $\mathfrak{su}(3)_C \oplus \mathfrak{su}(2)_L \oplus \mathfrak{u}(1)_Y,$ in addition to four iterations of $\mathfrak{u}(1)$.  For spatial symmetries, one finds multiple copies of  $\mathfrak{so}(3)$.  Given its Jordan algebraic foundation, and its \it apparent \rm non-relativistic character, the model may supply a bridge between particle physics and quantum computing.
This talk is intended to be accessible to students.  Everyone is welcome.

Event resources