Search Publications

Probing grand unification with quantum sensors

Calmet, Xavier; Sherrill, Nathaniel

We discuss how grand unification can be probed with experiments at low energies using quantum sensors. Specifically, we show that scalar multiplets coupled to the gauge sector of a grand unified theory provide a mechanism for a time-varying unified coupling which has low-energy consequences which can be probed with quantum sensors. We then assume …

Fine-structure constant constraints on late-time dark energy transitions

Martins, C. J. A. P.; Prat Colomer, M.

We use recent astrophysical and local tests of the stability of the fine-structure constant, α, to constrain a particular phenomenological but physically motivated class of models in which the dark energy equation of state can undergo a rapid transition at low redshifts, perhaps associated with the onset of the acceleration phase. We set constrain…