The publication of research in Physical Review in September 1956 detailing bound electron pairs established a fundamental shift in the understanding of superconductivity. Leon Cooper, a theoretical physicist, developed this concept as part of a collaborative effort that eventually provided the first microscopic explanation for how materials conduct electricity without resistance at extremely low temperatures.
Academic Foundation
Born in New York City in 1930, Leon Cooper attended the Bronx High School of Science before enrolling at Columbia University. He completed his undergraduate studies in 1951, followed by a master's degree in 1953 and a doctorate in 1954. His early academic work focused on muonic atoms and charge radius. Following his doctoral studies, he spent one year as a postdoctoral researcher at the Institute for Advanced Study in Princeton, New Jersey.
Twenty questions, eight minutes on the clock, and a percentile measured against everyone who has taken it. No sign-up.
Take the IQ test →The BCS Theory
While at the Institute for Advanced Study, Cooper collaborated with John Bardeen and John Robert Schrieffer. By investigating why certain metals lose electrical resistance at low temperatures, Cooper identified the interaction of electron pairs, now known as Cooper pairs. In 1957, the trio published their comprehensive explanation of superconductivity, known as the BCS theory. This contribution earned the researchers the Nobel Prize in Physics in 1972.
Transition to Neuroscience
After joining the faculty of Brown University in 1958, Cooper expanded his research interests into neuroscience. He sought to understand the mechanics of learning and synaptic plasticity. In 1982, alongside doctoral students Elie Bienenstock and Paul Munro, he introduced the BCM theory. This model describes how synapses in the visual cortex oscillate between saturation and unsaturation, providing a mechanism for how biological systems process visual information and learning.
Institutional Leadership and Industry
Cooper served as a professor at Brown University, where he founded the Institute for Brain and Neural Systems in 1973 and served as its inaugural director. In 1974, he was named Professor of Science, an endowed position. Outside of academia, he co-founded the technology firm Nestor in 1975 to explore artificial neural networks. The company later partnered with Intel to assist in the development of the Ni1000 computer chip.
Fast facts
- Born: 1930, New York City
- Died: 2024, Providence
- Field: Theoretical Physics and Neuroscience
- Nobel Prize in Physics: 1972
- Academic Home: Brown University
- Key Scientific Concepts: Cooper pair, BCS theory, BCM theory
- Education: Columbia University
- Notable Venture: Nestor, co-founded 1975
Questions readers ask
What is a Cooper pair?
A Cooper pair is a quasiparticle consisting of two electrons bound together, which allows for the flow of current through a metal with minimal electrical resistance.
What did the BCM theory contribute to science?
Developed in 1982, the BCM theory provides a mathematical explanation for synaptic plasticity, detailing how brain connections weaken and strengthen during the learning process.
