Isogravity: Toward an Electroweak and Gravitational Unification

Understand

We present a model that unites the electroweak interaction with general relativity without specifying a space-time metric.

• This is made possible by embedding the kinetic terms for gravity and electroweak theory using one $\SL$ connection variable.
• The gauge theory is specified without relying on a space-time metric.
• We show that once a symmetry breaking mechanism is implemented that selects a global time-like direction, the electroweak theory and general relativity emerges with their associated massless degrees of freedom; the spin 1 vector boson and the spin 2 graviton.