140 citations · 1k across the 22 of their papers we have counts for
4 papers · 1 filter
Time-dependent heterogeneity leads to transient suppression of the COVID-19 epidemic, not herd immunity
Alexei V. Tkachenko, Sergei Maslov, Ahmed Elbanna +3
Epidemics generally spread through a succession of waves that reflect factors on multiple timescales. On short timescales, super-spreading events lead to burstiness and overdispers…
Constraining early dark energy with gravitational waves before recombination
Zachary J. Weiner, Peter Adshead, John T. Giblin
We show that the nonperturbative decay of ultralight scalars into Abelian gauge bosons, recently proposed as a possible solution to the Hubble tension, produces a stochastic backgr…
Modeling COVID-19 dynamics in Illinois under non-pharmaceutical interventions
George N. Wong, Zachary J. Weiner, Alexei V. Tkachenko +3
We present modeling of the COVID-19 epidemic in Illinois, USA, capturing the implementation of a Stay-at-Home order and scenarios for its eventual release. We use a non-Markovian a…
Stochastic evolution of scalar fields with continuous symmetries during inflation
Peter Adshead, Lauren Pearce, Jessie Shelton +1
During inflation, scalar fields with masses less than the Hubble scale acquire vacuum expectation values (vevs) via stochastic processes driven by quantum fluctuations. For nearly…