Erbe, B. and Schliemann, J. (2010) Hyperfine induced spin and entanglement dynamics in double quantum dots: A homogeneous coupling approach. PHYSICAL REVIEW B, 81 (23): 235324. ISSN 1098-0121,
Full text not available from this repository.Abstract
We investigate hyperfine induced electron spin and entanglement dynamics in a system of two quantum dot spin qubits. We focus on the situation of zero external magnetic field and concentrate on approximation-free theoretical methods. We give an exact solution of the model for homogeneous hyperfine coupling constants (with all coupling coefficients being equal) and varying exchange coupling, and we derive the dynamics therefrom. After describing and explaining the basic dynamical properties, the decoherence time is calculated from the results of a detailed investigation of the short-time electron-spin dynamics. The result turns out to be in good agreement with experimental data.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | ; |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Theroretical Physics > Chair Professor Grifoni > Group John Schliemann |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 28 Jul 2020 06:29 |
| Last Modified: | 28 Jul 2020 06:29 |
| URI: | https://pred.uni-regensburg.de/id/eprint/24550 |
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