Related Experiment Video
Updated: Feb 4, 2026

Scalable Quantum Integrated Circuits on Superconducting Two-Dimensional Electron Gas Platform
Published on: August 2, 2019
Interband Electron Pairing for Superconductivity from the Breakdown of the Born-Oppenheimer Approximation
Myung-Hwan Whangbo1,2,3, Shuiquan Deng2, Jürgen Köhler2,4
1Department of Chemistry, North Carolina State University, Raleigh, NC 27695-8204, USA.
Abstract:
The origin of interband electron pairing, responsible for enhancing superconductivity, and the factors controlling its strength were examined. We show that interband electron pairing is a natural consequence of breaking down the Born-Oppenheimer approximation during electron-phonon interactions. Its strength is determined by the pair-state excitations around the Fermi surfaces that take place to form a superconducting state. Fermi surfaces favorable for the pairing were found, and the implications of this observation are discussed.
Related Concept Videos
The Born-Haber Cycle
Approximate Integration
VSEPR Theory and the Effect of Lone Pairs
Linearization and Approximation
Accuracy, limits, and approximation
Accuracy is defined as the closeness of the measured value to the true or actual value. In engineering mechanics, repeated measurements are taken during theoretical or experimental analyses to ensure that the result is precise and accurate.
The accuracy of any solution is based on the...
Application of Linearization and Approximation

