Late time transitions in the quintessence field and the H0 tension


We consider a quintessence field which transitions from a matter-like to a cosmological constant behaviour between recombination and the present time. We aim at easing the tension in the measurement of the present Hubble rate, and we assess the $\Lambda$CDM model properly enlarged to include our quintessence field against cosmological observations. The model does not address the scope we proposed. This result allows us to exclude a class of quintessential models as a solution to the tension in the Hubble constant measurements.

Physics of the Dark Universe 26, 100385 (2019)
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Luca Visinelli
Luca Visinelli
Tenure-track Associate Professor, Shanghai Jiao Tong University; Fellow, Tsung-Dao Lee Institute

PhD in Physics, working on Particle Astrophysics and Dark Matter modeling.