Speaker
Description
I will start by presenting existing classes of massive vector fields before moving on to the new Extended Proca-Nuevo, a non-linear theory of a massive spin-1 field that enjoys a non-linearly realized constraint that distinguishes it among other generalized vector models. I will show how this theory builds a (partial) bridge between the equivalent Generalized Proca and Proca Nuevo while exploring a new portion of the space of massive vector models. I will then prove that the theory may be covariantized in models that allow for consistent and ghost-free cosmological solutions. This model describes the correct number of dynamical variables in the presence of perfect fluid matter. I will finally exhibit, in a specific set-up, explicit hot Big Bang solutions featuring a late-time self-accelerating epoch, and which are such that all the stability and subluminality conditions are satisfied and where gravitational waves behave precisely as in General Relativity.
| Would you be interested in receiving feedback on your presentation? | Yes |
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| Are you happy for your talk to be recorded? | Yes |
| Will you be pre-recording your talk? | No |
| Could you please give the most relevant category for your talk? | Cosmology |
