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R. G. Herb Condensed Matter Seminars

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Events During the Week of September 18th through September 25th, 2022

Monday, September 19th, 2022

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Tuesday, September 20th, 2022

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Wednesday, September 21st, 2022

Results of the SHAFT experiment
Time: 3:00 pm
Place: 5280 Chamberlin Hall
Speaker: Alexander Gramolin, Riverlane
Abstract: I present the results of the SHAFT experiment at Boston University to search for axion-like dark matter in the mass range from 12 peV to 12 neV. The experiment is sensitive to the oscillating magnetic field that would be sourced by an axion-like dark matter halo of our Galaxy interacting with a strong static magnetic field in the lab. We employ toroidal ferromagnetic cores made of powdered iron-nickel alloy to enhance the static magnetic field by a factor of 24. Using superconducting quantum interference devices (SQUIDs), we achieve a magnetic sensitivity of 150 aT/rtHz. This sensitivity allows us to improve, over a part of our mass range, the existing laboratory limits on the electromagnetic coupling of axion-like dark matter.
Host: Robert McDermott
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Thursday, September 22nd, 2022

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Friday, September 23rd, 2022

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