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31· Cooling
Health & Science12h 9m ago
Using potassium atoms cooled to nearly absolute zero, the team found that stronger and stronger collisions eventually stop adding more resistivity.
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Toronto, Canada
Who
A group working with ultracold atoms; Professor Joseph Thywissen of the University of Toronto’s Department of Physics and Centre for Quantum Information and Quantum Control
What
Using potassium atoms cooled to nearly absolute zero, the team found that stronger and stronger collisions eventually stop adding more resistivity.
When
Thu, 18 Jun 2026 23:07:00 GMT · 12h 9m ago
Where
Toronto, Canada ·
Why
The discovery clarifies a long-running puzzle in transport physics and offers a clearer microscopic picture of how resistivity arises in low-density metals.
The Frontline Impact
How this affects you
The study sharpens one of the central questions in condensed-matter physics and provides a cleaner reference point for thinking about resistivity in metals, suggesting that rising collision strength does not automatically mean ever-rising resistance in low-density, strongly interacting systems.
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