119 citations · 2.3k across the 68 of their papers we have counts for
69 papers
Dark Energy Bubble as Dynamical Dark Energy: Properties and CMB Constraints
Batia Friedman-Shaw, Matthew C. Johnson, Katherine J. Mack
Recent DESI results are in tension with the constant dark energy density predicted by the CDM model. If dark energy is associated with the vacuum energy of a scalar field in a m…
Evidence for renormalized instantons in real-time simulations of vacuum decay
Emilie Hertig, Alexander C. Jenkins, Hiranya V. Peiris +2
While vacuum decay is traditionally described by Euclidean instanton methods, lattice simulations enable real-time modeling of dynamical observables relevant to cosmology and upcom…
Patchy Screening of the CMB from Dark Photons
Dalila Pîrvu, Junwu Huang, Matthew C. Johnson
We study anisotropic (patchy) screening induced by the resonant conversion of cosmic microwave background (CMB) photons into dark-sector massive vector bosons (dark photons) as the…
Analog vacuum decay from vacuum initial conditions
Alexander C. Jenkins, Jonathan Braden, Hiranya V. Peiris +3
Ultracold atomic gases can undergo phase transitions that mimic relativistic vacuum decay, allowing us to empirically test early-Universe physics in tabletop experiments. We invest…
Enhancing Bispectrum Estimators for Galaxy Redshift Surveys with Velocities
Julius Wons, Emanuela Dimastrogiovanni, Matteo Fasiello +2
We forecast the ability of bispectrum estimators to constrain primordial non-Gaussianity using future photometric galaxy redshift surveys. A full-sky survey with photometric redshi…
Probing helium reionization with kinetic Sunyaev Zel'dovich tomography
Selim C. Hotinli, Simone Ferraro, Gilbert P. Holder +3
Reionization of helium is expected to occur at redshifts and have important consequences for quasar populations, galaxy formation, and the morphology of the intergalactic…