Bloch-Zener oscillations of strongly correlated electrons
Physical Review B - Condensed Matter and Materials Physics, ISSN: 1098-0121, Vol: 86, Issue: 7
2012
- 22Citations
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Article Description
It is well known that an electron in a single-band tight-binding lattice coherently driven by an external dc electric field undergoes Bloch oscillations. In the framework of the extended Hubbard model, here it is shown theoretically that two strongly interacting electrons with on-site and nearest-neighbor site repulsion undergo a sequence of Bloch oscillations and Zener tunneling, the so-called Bloch-Zener oscillations (BZOs), among different narrow bands formed by bound particle states. Such a kind of BZOs arise because of nearest-neighbor site particle interaction and are thus rather distinct than BZOs observed for a single electron in biperiodic lattices supporting two single-particle minibands. © 2012 American Physical Society.
Bibliographic Details
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=84865700859&origin=inward; http://dx.doi.org/10.1103/physrevb.86.075144; https://link.aps.org/doi/10.1103/PhysRevB.86.075144; http://harvest.aps.org/v2/journals/articles/10.1103/PhysRevB.86.075144/fulltext; http://link.aps.org/article/10.1103/PhysRevB.86.075144
American Physical Society (APS)
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