Happy 50th Birthday, BCS Theory

In summary, the BCS Theory of Superconductivity, published 50 years ago in 1957, had a significant impact on the field of quantum theory of solid. It not only provided a complete description of superconductivity, but also popularized the field-theoretic method in the study of materials/condensed matter. At the 2007 APS March Meeting, a session was held to celebrate the theory's anniversary, with talks highlighting its importance in condensed matter physics and its transcendence into all of physics. A notable point was made that Einstein also attempted to solve the superconductivity phenomenon, but was hindered by the lack of the quantum theory of metals at the time. The session also honored Leon Cooper, one of the authors
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The BCS Theory of Superconductivity was published 50 years ago in 1957, and it revolutionized the field of the quantum theory of solid. It besides being a landmark paper for nailing down the complete description of superconductivity, it also because one of the first papers to actually popularize the field-theoretic method in the study of materials/condensed matter. For many people, this is a more daring and wide-ranging impact of this paper.

The occasion was marked by http://media.www.browndailyherald.com/media/storage/paper472/news/2007/04/13/CampusNews/Nobel.Laureates.Praise.Profs.Superconductivity.Theory-2840628.shtml" , where Leon Cooper (the "C" in BCS and "Cooper pair") was honored.

Note a very interesting point made in that article that Einstein also tried to dabbled in solving the superconductivity phenomenon. Of course, he didn't get to do that. As Cooper mentioned, Einstein was handicapped because he didn't have the quantum theory of metals at that time to use. There is an interesting http://arxiv.org/abs/physics/0612159" of Einstein's efforts in superconductivity that appeared recently.

Zz.
 
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At the 2007 APS March Meeting, there was a session to celebrate the 50th anniversary of the publication of the BCS Theory. There were 2 invited speakers to the session, and these talks tried to convey not only the importance of the theory within condensed matter physics, but also how it transcends into all of physics.

You can get the actual viewgraphs used in those presentations by clicking on the links.

"http://dcmp.bc.edu/images/APS2007Rowell.pdf" " by John Rowell.

"http://dcmp.bc.edu/images/Baym_Denver.pdf" " by Gordon Baym.

Zz.
 
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Ah, a great birthday to celebrate!

Thanks for the links Zz.
 

Related to Happy 50th Birthday, BCS Theory

What is the BCS Theory?

The BCS Theory, or Bardeen-Cooper-Schrieffer Theory, is a widely accepted explanation of superconductivity. It was proposed in 1957 by John Bardeen, Leon Cooper, and John Schrieffer and has been used to explain the properties and behavior of superconductors since then.

How does the BCS Theory explain superconductivity?

The BCS Theory suggests that at low temperatures, electrons in a superconductor form pairs called Cooper pairs. These pairs are able to move through the lattice of the superconductor without resistance, resulting in the loss of electrical resistance.

What evidence supports the BCS Theory?

The BCS Theory has been supported by numerous experiments and observations, such as the Meissner effect (the expulsion of magnetic fields from the interior of a superconductor) and the existence of energy gaps in the electronic spectrum of superconductors. In addition, the predictions made by the theory have been confirmed by further experiments.

How has the BCS Theory evolved over time?

The original BCS Theory has been expanded and refined over the years, with new insights and findings from experiments. Some modifications include the inclusion of impurities in superconductors and the development of the Ginzburg-Landau theory, which explains the behavior of superconductors near their transition temperature.

What practical applications does the BCS Theory have?

The BCS Theory has many practical applications, such as in the development of superconducting materials for use in MRI machines, particle accelerators, and power transmission cables. It has also led to advancements in technology, such as superconducting quantum interference devices (SQUIDs) used in scientific research and sensitive detectors for measuring magnetic fields.

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