743 citations · 5.7k across the 86 of their papers we have counts for
8 papers · 1 filter
Early dark energy from massive neutrinos -- a natural resolution of the Hubble tension
Jeremy Sakstein, Mark Trodden
The Hubble tension can be significantly eased if there is an early component of dark energy that becomes active around the time of matter-radiation equality. Early dark energy mode…
The Novel Probes Project -- Tests of Gravity on Astrophysical Scales
Tessa Baker, Alexandre Barreira, Harry Desmond +8
We introduce The Novel Probes Project, an initiative to advance the field of astrophysical tests of the dark sector by creating a forum that connects observers and theorists. This…
A local resolution of the Hubble tension: The impact of screened fifth forces on the cosmic distance ladder
Harry Desmond, Bhuvnesh Jain, Jeremy Sakstein
The discrepancy between the values of the Hubble constant derived from the local distance ladder and the cosmic microwave background provides a tantalising hint of new physic…
Screened Fifth Forces Mediated by Dark Matter-Baryon Interactions: Theory and Astrophysical Probes
Jeremy Sakstein, Harry Desmond, Bhuvnesh Jain
We derive the details of a new screening mechanism where the interactions of baryons and dark matter can be screened according to the local dark matter density. In this mechanism,…
Baryogenesis via Gravitational Spontaneous Symmetry Breaking
Qiuyue Liang, Jeremy Sakstein, Mark Trodden
We study baryogenesis in effective field theories where a -charged scalar couples to gravity via curvature invariants. We analyze the general possibilities in…
Dark Energy and Modified Gravity
Anže Slosar, Tamara Davis, Daniel Eisenstein +6
Despite two decades of tremendous experimental and theoretical progress, the riddle of the accelerated expansion of the Universe remains to be solved. On the experimental side, our…
Self-interactions and Spontaneous Black Hole Scalarization
Caio F. B. Macedo, Jeremy Sakstein, Emanuele Berti +3
It has recently been shown that nontrivial couplings between a scalar and the Gauss-Bonnet invariant can give rise to black hole spontaneous scalarization. Theories that exhibit th…
Pixelated Dark Energy
Jonathan J. Heckman, Craig Lawrie, Ling Lin +2
We study the phenomenology of a recent string construction with a quantum mechanically stable dark energy. A mild supersymmetry protects the vacuum energy but also allows $O(10 - 1…