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Electron trimer states in conventional superconductors
- Source :
- Physical Review Research, Vol 2, Iss 1, p 013341 (2020)
- Publication Year :
- 2020
- Publisher :
- American Physical Society, 2020.
-
Abstract
- We expand the Cooper problem by including a third electron in an otherwise empty band. We demonstrate the formation of a trimer state of two electrons above the Fermi sea and the third electron, for sufficiently strong interband attractive interaction. We show that the critical interaction strength is the lowest for small Fermi velocities, large masses of the additional electron, and large Debye energy. This trimer state competes with the formation of the two-electron Cooper pair, and can be created transiently via optical pumping.
Details
- Language :
- English
- ISSN :
- 26431564
- Volume :
- 2
- Issue :
- 1
- Database :
- Directory of Open Access Journals
- Journal :
- Physical Review Research
- Publication Type :
- Academic Journal
- Accession number :
- edsdoj.181041fd7198494d9a4ef098730ad818
- Document Type :
- article
- Full Text :
- https://doi.org/10.1103/PhysRevResearch.2.013341