Spin-orbit-coupled quantum memory of a double quantum dot

Pumped double quantum dot with spin-orbit coupling

We study driven by an external electric field quantum orbital and spin dynamics of electron in a one-dimensional double quantum dot with spin-orbit coupling. Two types of external perturbation are considered: a periodic field at the Zeeman frequency and a single half-period pulse. Spin-orbit coupling leads to a nontrivial evolution in the spin and orbital channels and to a strongly spin- depend...

Energy states and exchange energy of coupled double quantum dot in a magnetic field

The ground state energies of two interacting electrons confined in a coupled double quantum dot (DQD) presented in a magnetic field has been calculated by solving the relative Hamiltonian using variational and exact diagonalization methods. The singlet-triplet transitions in the angular momentum and spin of the quantum dot ground state had been shown .We have studied the magnetic field versus c...

Energy states and exchange energy of coupled double quantum dot in a magnetic field

The ground state energies of two interacting electrons confined in a coupled double quantum dot (DQD) presented in a magnetic field has been calculated by solving the relative Hamiltonian using variational and exact diagonalization methods. The singlet-triplet transitions in the angular momentum and spin of the quantum dot ground state had been shown .We have studied the magnetic field versus c...

Electric field tuning of spin splitting in a quantum dot coupled to a semimagnetic quantum dot

Spin-orbit effects in a triple quantum dot shuttle

J. Villavicencio,1,* I. Maldonado,2 E. Cota,3,† and G. Platero4,‡ 1Facultad de Ciencias, Universidad Autónoma de Baja California, Apartado Postal 1880, 22800 Ensenada, Baja California, México 2Avenida Del Fresno 188, Código Postal 22819, Ensenada, B.C., México 3Centro de Nanociencias y Nanotecnologı́a, Universidad Nacional Autónoma de México, Apartado Postal 356, 22860 Ensenada, B.C., México 4In...