Michael A. Fedderke
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Michael A. Fedderke
@mfedderke.com
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August 10, 2025 at 11:59 PM
Reposted by Michael A. Fedderke
perimeterinstitute.ca
Michael Fedderke and his team propose fireball antinucleosynthesis: collisions between dark matter objects that could spark high-energy "fireballs" of antiparticles, mimicking a mini Big Bang and producing antihelium under the right conditions.

Details: perimeterinstitute.ca/news/there-c...
July 23, 2025 at 7:10 PM
Reposted by Michael A. Fedderke
perimeterinstitute.ca
If complex antimatter exists in the wild, researchers have an idea how it got there.
July 23, 2025 at 7:10 PM
mfedderke.com
arxiv.org/abs/2503.03116
Periodic Cosmic String Formation and Dynamics
We study string formation and dynamics in a scalar field theory with a global $U(1)$ symmetry. If a scalar field $Φ$ is initially displaced from the minimum of a wine-bottle potential, even if uniform...
arxiv.org
March 7, 2025 at 8:47 PM
mfedderke.com
cooking.nytimes.com/recipes/1022... Halve the scallops, add two cloves of garlic, make sure you give more time for liquids to reduce, go easy on the parsley, serve over rice. Might be one of the best things I have ever eaten.
Creamy Pan-Roasted Scallops With Fresh Tomatoes Recipe
In this homage to a classic dish at Grand Central Oyster Bar in New York, scallops are quickly poached in a creamy, piquant tomato sauce that’s spiked with Worcestershire and celery seed If you want t...
cooking.nytimes.com
February 16, 2025 at 3:29 AM
mfedderke.com
Attempt successful
December 21, 2024 at 10:18 PM
mfedderke.com
Attempting Beef Bourguignon
December 21, 2024 at 8:17 PM
mfedderke.com
arxiv.org/abs/2411.12947
Kicking the Tires on Picolensing as a Probe of Primordial Black Hole Dark Matter
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_{\odot} \lesssim M_{\text{PB...
arxiv.org
November 21, 2024 at 2:46 AM
mfedderke.com
arxiv.org/abs/2402.15581
Fireball anti-nucleosynthesis
The tentative identification of approximately ten relativistic anti-helium cosmic-ray events at AMS-02 would, if confirmed, challenge our understanding of the astrophysical synthesis of heavy...
arxiv.org
February 27, 2024 at 1:06 PM