In this biography
Quick facts
- Born
- 23 May 1908
- Died
- 30 January 1991
- Birthplace
- Madison, Wisconsin, United States
- Country
- United States
- Nationality
- Not independently established
- Known for
- Point-contact transistor and BCS theory.
- Medal year
- 1965; presentation 1966
Why this life matters
His two major collaborations show different ways that mathematical explanation and experimental capability can advance together.
Timeline
Key moments
University research
Moved to Illinois.
Collaborative theory
Worked with Cooper and Schrieffer.
Retrospective lecture
Discussed electron–phonon interactions.
Engineering, geophysics and quantum theory
Bardeen studied electrical engineering at Wisconsin, graduating in 1928. After work at Gulf Research Laboratories, he entered Princeton for mathematical physics under Eugene Wigner and received his doctorate in 1936. Harvard research and a Minnesota appointment preceded wartime work at the Naval Ordnance Laboratory.
Sources for this section: [1]
Theory alongside experiment
At Bell Labs, Bardeen worked with Walter Brattain in a semiconductor programme directed by William Shockley. His 1956 lecture describes contributions from materials specialists, a physical chemist and a circuit expert. Understanding surfaces and finding a working amplifier were connected problems, supported by a wider experimental organisation.
Sources for this section: [3]
The superconductivity collaboration
Bardeen moved to Illinois in 1951. In 1957 he, Leon Cooper and John Robert Schrieffer proposed the theory now known by their initials, BCS. The microscopic account had to confront several observed properties, rather than merely reproduce zero electrical resistance.
In his 1972 lecture he traced the importance of isotope measurements, lattice vibrations and earlier unsuccessful theoretical attempts. He also discussed later many-body developments. This retrospective shows a research programme that continued beyond a celebrated paper and absorbed contributions from other theorists and experimenters.
Recognition and continuing research
The National Science Foundation records his 1965 National Medal of Science and its presentation on 10 February 1966. The 1956 and 1972 physics Nobel awards recognised different research achievements; neither substitutes for reading the underlying work. Bardeen died on 30 January 1991.
His career links industrial materials research, university teaching and mathematical explanation. Its continuity lies in moving between observations and models, while its two major collaborations required different colleagues and different kinds of evidence.
Quick answers
Frequently asked questions about John Bardeen
- Does one successful calculation establish a theory?
- No. The guide uses a stipulated relation to calculate a prediction, then separates agreement with one observation from a broader test.
Keep exploring
Lives connected to this story
- Walter Brattain
Read the experimental career beside the theoretical one.
- Robert Noyce
Follow the next stage from individual devices towards integration.
- Bibha Chowdhuri
Compare detector evidence with semiconductor experiments.
- Owen Willans Richardson
Compare an earlier experimental programme in electron emission.
- Alan Hodgkin
Compare a different quantitative model of physical behaviour.
- Philip Anderson
Compare Anderson’s disorder and localisation research with other approaches to collective electronic behaviour in matter.
Sources and further reading
Explore the evidence
These references support the biography and offer further reading. Official records, first-person accounts and independent reporting provide different perspectives; image records document attribution and licensing.
- 1. Nobel Foundation; edited in Nobel Lectures 1964, later death noticeJohn Bardeen: Biographical
The historical biography contains later additions; old present-tense offices are not current-role claims.
- 2. US National Science FoundationJohn Bardeen: National Medal of Science 1965
- 3. John Bardeen; Nobel lecture 11 December 1956Semiconductor Research Leading to the Point Contact Transistor
- 4. John Bardeen; Nobel lecture 11 December 1972Electron-Phonon Interactions and Superconductivity
- 5. John Bardeen, L. N. Cooper and J. R. Schrieffer; Physical Review 108, 1175–1204, 1957Theory of Superconductivity
The 1957 paper was inspected through its indexed abstract and first-page excerpt, not its full text.