What theory led to Bardeen's second Nobel Prize?
Quantum Theory
Evolution Theory
Relativity Theory
BCS theory
Answer
The BCS theory, or the Bardeen-Cooper-Schrieffer theory, explains the phenomena of superconductivity in metals. Developed in 1957 by John Bardeen, Leon Cooper, and John Schrieffer, Theory proposes that at extremely low temperatures, electrons in a metal form pairs known as Cooper pairs. These Cooper pairs move through the metal without resistance, allowing for the flow of electricity without energy loss, a characteristic feature of superconductivity.
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