Published January 1990
| Version v1
Journal article
Functional integrals and the BCS theory of superconductivity
Description
As an example of the application of functional integral techniques tocondensed matter physics, the partition function for the BCS model forsuperconductivity is derived. The pairing term in the Hamiltonian islinearized by applying the Hubbard-Stratonovich transformation. It is shownthat the standard result for the gap equation can be obtained by making asaddle-point approximation to the functional integral
Additional details
Publishing Information
- Journal Title
- American Journal of Physics
- Journal Volume
- 58
- Journal Issue
- 1
- Series
- Am. J. Phys.
- Journal Page Range
- 50-53
- ISSN
- 0002-9505
- CODEN
- AJPIA
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 21041423
- Subject category
- S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
- Descriptors DEI
- BCS THEORY; ENERGY GAP; HAMILTONIANS; INTEGRALS; PARTITION FUNCTIONS; SUPERCONDUCTORS
- Descriptors DEC
- FUNCTIONS; MATHEMATICAL OPERATORS; QUANTUM OPERATORS