161 citations · 716 across the 24 of their papers we have counts for
24 papers
Periodic Cosmic String Formation and Dynamics
Michael A. Fedderke, Junwu Huang, Nils Siemonsen
We study string formation and dynamics in a scalar field theory with a global symmetry. If a scalar field is initially displaced from the minimum of a wine-bottle potent…
Picolensing as a Probe of Primordial Black Hole Dark Matter
Michael A. Fedderke, Sergey Sibiryakov
The gravitational-lensing parallax of gamma-ray bursts (GRBs) is an intriguing probe of primordial black hole (PBH) dark matter in the asteroid-mass window, $2\times 10^{-16}M_{\od…
A Precision Gyroscope from the Helicity of Light
Michael A. Fedderke, Roni Harnik, David E. Kaplan +4
We describe a gyroscope that measures rotation based on the effects of the rotation on the polarization of light. Rotation induces a differential phase shift in the propagation of…
Fireball anti-nucleosynthesis
Michael A. Fedderke, David E. Kaplan, Anubhav Mathur +2
The tentative identification of approximately ten relativistic anti-helium cosmic-ray events at AMS-02 would, if confirmed, challenge our understanding of the astrophysical synthes…
A Hunt for Magnetic Signatures of Hidden-Photon and Axion Dark Matter in the Wilderness
Ibrahim A. Sulai, Saarik Kalia, Ariel Arza +17
Earth can act as a transducer to convert ultralight bosonic dark matter (axions and hidden photons) into an oscillating magnetic field with a characteristic pattern across its surf…
Measuring axion gradients with photon interferometry (MAGPI)
Michael A. Fedderke, Jedidiah O. Thompson, Raphael Cervantes +5
We propose a novel search technique for axions with a -violating monopole coupling to bulk Standard Model charges . Gradients in the static axi…