1. Rashba coupling in quantum dots: An exact solution
- Author
-
Gustavo S. Lozano, E. Tsitsishvili, and Alexander O. Gogolin
- Subjects
Physics ,rashba ,Zeeman effect ,Condensed matter physics ,Strongly Correlated Electrons (cond-mat.str-el) ,Gyromagnetic ratio ,Ciencias Físicas ,Relaxation (NMR) ,FOS: Physical sciences ,Electron ,purl.org/becyt/ford/1.3 [https] ,spin orbit ,Condensed Matter Physics ,Electronic, Optical and Magnetic Materials ,Schrödinger equation ,Magnetic field ,purl.org/becyt/ford/1 [https] ,Astronomía ,symbols.namesake ,Coupling (physics) ,Condensed Matter - Strongly Correlated Electrons ,symbols ,Condensed Matter::Strongly Correlated Electrons ,Rashba effect ,CIENCIAS NATURALES Y EXACTAS - Abstract
We present an analytic solution to the problem of the Rashba spin-orbit coupling in semiconductor quantum dots. We calculate the exact energy spectrum, wave-functions, and spin--flip relaxation times. We discuss various effects inaccessible via perturbation theory. In particular, we find that the effective gyromagnetic ratio is strongly suppressed by the spin-orbit coupling. The spin-flip relaxation rate has a maximum as a function of the spin-orbit coupling and is therefore suppressed in both the weak- and strong coupling limits., 5 pages, 4 figs, reference added
- Published
- 2004