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Nobel Laureate Leggett Unlocked Helium's Secrets
12 Mar
Summary
- Leggett explained helium-3's superfluidity, a previously impossible feat.
- His interpretation was crucial to a Nobel Prize-winning discovery.
- He later won his own Nobel for superconductor and superfluid theories.
Physicist Anthony J. Leggett, a Nobel laureate, died on Sunday at his home in Urbana, Ill., at the age of 87. He was recognized for his pivotal role in understanding superfluids, a state where liquids exhibit frictionless flow.
In 1972, Leggett deciphered puzzling experimental results from Cornell physicists, realizing they had achieved a superfluid state with helium-3, a feat previously considered impossible. His groundbreaking papers in Physical Review Letters in October 1972 and August 1973 provided the theoretical framework and predictions that confirmed this scientific breakthrough.
