103 citations · 408 across the 18 of their papers we have counts for
18 papers
First-principles upper bounds on dark matter-electron scattering rates from condensed matter sum rules
Bradford A. Barker, Jay Epstein, Luke James +5
A wide variety of condensed matter systems are used or proposed as detectors to search for dark matter-electron scattering. In general, the scattering rate depends on detailed know…
Foundation Models for Astrobiology: Paper I -- Workshop and Overview
Ryan Felton, Caleb Scharf, Stuart Bartlett +18
Advances in machine learning over the past decade have resulted in a proliferation of algorithmic applications for encoding, characterizing, and acting on complex data that may con…
Axion Clouds around Neutron Stars
Dion Noordhuis, Anirudh Prabhu, Christoph Weniger +1
Recent work has shown that axions can be efficiently produced via non-stationary pair plasma discharges in the polar cap region of pulsars. Here, we point out that for axion masses…
Astrophysical Constraints on Decaying Dark Gravitons
Jamie A. P. Law-Smith, Georges Obied, Anirudh Prabhu +1
In the dark dimension scenario, which predicts an extra dimension of micron scale, dark gravitons (KK modes) are a natural dark matter candidate. In this paper, we study observable…
Axion-mediated Transport of Fast Radio Bursts Originating in Inner Magnetospheres of Magnetars
Anirudh Prabhu
Among magnetar models of Fast Radio Bursts (FRBs), there is ongoing debate about whether the site of coherent radio emission lies within or beyond the light cylinder. We propose a…
Constraints on Dark Matter-Electron Scattering from Molecular Cloud Ionization
Anirudh Prabhu, Carlos Blanco
We demonstrate that ionization of by dark matter in dense molecular clouds can provide strong constraints on the scattering strength of dark matter with electrons. Mol…
Novel Constraints on Axions Produced in Pulsar Polar-Cap Cascades
Dion Noordhuis, Anirudh Prabhu, Samuel J. Witte +3
Axions can be copiously produced in localized regions of neutron star magnetospheres where the ambient plasma is unable to efficiently screen the induced electric field. As these a…
DM-electron scattering in materials: sum rules and heterostructures
Robert Lasenby, Anirudh Prabhu
In recent years, a growing experimental program has begun to search for sub-GeV dark matter through its scattering with electrons. An associated theoretical challenge is to compute…
Axion Production in Pulsar Magnetosphere Gaps
Anirudh Prabhu
Pulsar magnetospheres admit non-stationary vacuum gaps that are characterized by non-vanishing . The vacuum gaps play an important role in plasma productio…
Reproducible Workflow
Anirudh Prabhu, Peter Fox
Reproducibility has been consistently identified as an important component of scientific research. Although there is a general consensus on the importance of reproducibility along…
Cluster analysis of presolar silicon carbide grains: evaluation of their classification and astrophysical implications
Asmaa Boujibar, Samantha Howell, Shuang Zhang +9
Cluster analysis of presolar silicon carbide grains based on literature data for 12C/13C, 14N/15N, δ30Si/28Si, and δ29Si/28Si including or not inferred initial 26Al/27Al data, reve…
Optical Lensing by Axion Stars: Observational Prospects with Radio Astrometry
Anirudh Prabhu
Axions and axion-like particles (ALPs) are some of the best-motivated dark matter (DM) candidates. Under certain circumstances, large axion fluctuations in the early universe can c…
Resonant Conversion of Dark Matter Oscillons in Pulsar Magnetospheres
Anirudh Prabhu, Nicholas M. Rapidis
Due to their high magnetic fields and plasma densities, pulsars provide excellent laboratories for tests of beyond Standard Model (BSM) physics. When axions or axion-like particles…
Preheating after multifield inflation with nonminimal couplings, III: Dynamical spacetime results
Matthew P. DeCross, David I. Kaiser, Anirudh Prabhu +2
This paper concludes our semi-analytic study of preheating in inflationary models comprised of multiple scalar fields coupled nonminimally to gravity. Using the covariant framework…
Preheating after multifield inflation with nonminimal couplings, II: Resonance Structure
Matthew P. DeCross, David I. Kaiser, Anirudh Prabhu +2
This is the second in a series of papers on preheating in inflationary models comprised of multiple scalar fields coupled nonminimally to gravity. In this paper, we work in the rig…
Preheating after Multifield Inflation with Nonminimal Couplings, I: Covariant Formalism and Attractor Behavior
Matthew P. DeCross, David I. Kaiser, Anirudh Prabhu +2
This is the first of a three-part series of papers, in which we study the preheating phase for multifield models of inflation involving nonminimal couplings. In this paper, we stud…
A Property of the Gamma Function at its Singularities
Anirudh Prabhu
The singularities of the function, a meromorphic function on the complex plane, are known to occur at the nonpositive integers. We show, using Euler and Gauss identities, that…
On the Sum and Product of Distinct Prime Factors of an Odd Perfect Number
Anirudh Prabhu
We present lower bounds on the sum and product of the distinct prime factors of an odd perfect number, which provide a lower bound on the size of the odd perfect number as a functi…