Speaker
Description
We introduce the gauged quintessence model, in which the dark energy field (quintessence) has a gauge symmetry. This is a kind of realization of the interacting quintessence model and the first quintessence model under a gauge symmetry. We identify the radial part of the complex scalar as the dark energy field (quintessence), while the angular part is the longitudinal component of a new gauge boson. It brings interesting characters to dark energy physics. The
gauge boson can affect the quintessence dynamics, and the solicited dark energy properties can constrain the gauge coupling constant. While the uncoupled quintessence model severely suffers from the Hubble tension, the gauged quintessence might alleviate the situation. Also, the gauged quintessence model can make possible the misalignment production of relic density of the dark gauge boson.
