46 citations · 57 across the 7 of their papers we have counts for
7 papers
The kSZ optical depth degeneracy and future constraints on local primordial non-Gaussianity
Avery J. Tishue, Charuhas Shiveshwarkar, Gilbert Holder
Recent reconstructions of the large-scale cosmological velocity field with kinetic Sunyaev Zeldovich (kSZ) tomography have returned an amplitude that is low with respect to the hal…
Neutrino Mass Constraints from kSZ Tomography
Avery J. Tishue, Selim C. Hotinli, Peter Adshead +2
We forecast neutrino mass constraints using Stage IV CMB and large-scale structure surveys, focusing on kSZ tomography as an independent probe of the growth of cosmic structure. We…
Probing beyond local-type non-Gaussianity with kSZ tomography
Peter Adshead, Avery J. Tishue
Non-Gaussianity of the primordial curvature perturbations may arise from a variety of well motivated early Universe scenarios. In particular, inflationary theories with additional…
Gravitational Waves from Kinetic Preheating
Peter Adshead, John T. Giblin, Avery Tishue
We study gravitational wave production during kinetic preheating after inflation with a focus on scenarios that arise in -attractor models where a scalar dilaton-like inflaton i…
Dark Energy with a Triplet of Classical U(1) Fields
Avery J. Tishue, Robert R. Caldwell
We present a new mechanism for cosmic acceleration consisting of a scalar field coupled to a triplet of classical U(1) gauge fields. The gauge fields are arranged in a homogeneous,…
Relic Cosmological Vector Fields and Inflationary Gravitational Waves
Avery J. Tishue, Robert R. Caldwell
We show that relic vector fields can significantly impact a spectrum of primordial gravitational waves in the post-inflationary era. We consider a triplet of U(1) fields in a homog…
Preheating in Full General Relativity
John T. Giblin, Avery J. Tishue
We investigate the importance of local gravity during preheating, the non-linear dynamics that may be responsible for starting the process of reheating the universe after inflation…