Two-dimensional quantum rings with oscillating spin-orbit interaction strength: A wave function picture
arXiv:1511.06570 · doi:10.1103/PhysRevB.82.165322
Abstract
We determine the relevant spinor valued wave functions for a two-dimensional quantum ring in the presence of Rashba-type spin-orbit interaction (SOI). The case of constant SOI strength is considered first, then we investigate the physical consequences of time-dependent (oscillating) SOI strength. Floquet's method is applied to find time-dependent eigenspinors, and it is shown that the Floquet quasienergies and thus their differences (the generalized Rabi frequencies) are determined by the radial boundary conditions. Time evolution of various initial states is calculated.
9 pages, 7 figures
References in corpus (9)
- Modulating Unpolarized Current in Quantum Spintronics: Visibility of Spin-Interference Effects in Multichannel Aharonov-Casher Mesoscopic Rings
- Networks of quantum nanorings: programmable spintronic devices
- Magnetoconductance properties of rectangular arrays of spintronic quantum rings
- Few-electron artificial molecules formed by laterally coupled quantum rings
- Electron spin interferometry using a semiconductor ring structure
- Energy levels of a two-dimensional hydrogen atom with spin-orbit Rashba interaction
- Quantum pumping and rectification effects in Aharonov-Bohm-Casher ring-dot systems
- Photo-induced, non-equilibrium spin and charge polarization in quantum rings
- Magnetic forces and stationary electron flow in three-terminal semiconductor quantum ring