258 citations · 852 across the 13 of their papers we have counts for
13 papers
Radiated Angular Momentum and Dissipative Effects in Classical Scattering
Aneesh V. Manohar, Alexander K. Ridgway, Chia-Hsien Shen
We present a new formula for the angular momentum carried away by gravitational radiation in classical scattering. This formula, combined with the known expression for the…
Stochastic Inflation at NNLO
Timothy Cohen, Daniel Green, Akhil Premkumar +1
Stochastic Inflation is an important framework for understanding the physics of de Sitter space and the phenomenology of inflation. In the leading approximation, this approach resu…
The Phase of the BAO on Observable Scales
Daniel Green, Alexander K. Ridgway
The baryon acoustic oscillations (BAO) provide an important bridge between the early universe and the expansion history at late times. While the BAO has primarily been used as a st…
New Shapes of Primordial Non-Gaussianity from Quasi-Single Field Inflation with Multiple Isocurvatons
Michael McAneny, Alexander K. Ridgway
We study a simple extension of quasi-single field inflation in which the inflaton interacts with multiple extra massive scalars known as isocurvatons. Due to the breaking of time t…
An Estimate of the Inclusive Branching Ratio to in Decay
Alexander K. Ridgway, Mark B. Wise
We estimate the branching ratio for the inclusive decays to be approximately 1%. Our estimate is performed using non-relativistic p…
Loop-Induced Stochastic Bias at Small Wavevectors
Michael McAneny, Alexander K. Ridgway, Mikhail P. Solon +1
Primordial non-Gaussianities enhanced at small wavevectors can induce a power spectrum of the galaxy overdensity that differs greatly from that of the matter overdensity at large l…
Bound states and the classical double copy
Walter D. Goldberger, Alexander K. Ridgway
We extend the perturbative classical double copy to the analysis of bound systems. We first obtain the leading order perturbative gluon radiation field sourced by a system of inter…
Non-Gaussian Enhancements of Galactic Halo Correlations in Quasi-Single Field Inflation
Haipeng An, Michael McAneny, Alexander K. Ridgway +1
We consider a quasi-single field inflation model in which the inflaton interacts with a massive scalar field called the isocurvaton. Due to the breaking of time translational invar…
Quasi Single Field Inflation in the non-perturbative regime
Haipeng An, Michael McAneny, Alexander K. Ridgway +1
In quasi single field inflation there are massive fields that interact with the inflaton field. If these other fields are not much heavier than the Hubble constant during inflation…
Radiation and the classical double copy for color charges
Walter D. Goldberger, Alexander K. Ridgway
We construct perturbative classical solutions of the Yang-Mills equations coupled to dynamical point particles carrying color charge. By applying a set of color to kinematics repla…
Static Spherically Symmetric Kerr-Schild Metrics and Implications for the Classical Double Copy
Alexander K. Ridgway, Mark B. Wise
We discuss the physical interpretation of stress-energy tensors that source static spherically symmetric Kerr-Schild metrics. We find that the sources of such metrics with no curva…
Superforms in Simple Six-dimensional Superspace
Cesar Arias, William D. Linch, Alexander K. Ridgway
We investigate the complex of differential forms in curved, six-dimensional, superspace. The superconformal group acts on this complex by super-Weyl transformations. An a…
4D, N=1 Supergravity Genomics
Isaac Chappell, S. James Gates, William D. Linch +4
The off-shell representation theory of 4D, supermultiplets can be categorized in terms of distinct irreducible graphical representations called adinkras as part of…