6533b7d2fe1ef96bd125e9d0
RESEARCH PRODUCT
Spin-Based Quantum Information Processing in Magnetic Quantum Dots
Ryszard GonczarekPaweł MachnikowskiLucjan JacakJ. KrasnyjDorota JacakMateusz Krzyzosiaksubject
Statistics and ProbabilityPhysicsStatistical and Nonlinear PhysicsQuantum PhysicsCondensed Matter::Mesoscopic Systems and Quantum Hall EffectPhase qubitCondensed Matter::Materials ScienceQuantum dotQuantum mechanicsQubitSinglet stateTriplet stateQuantum informationQuantum dissipationMathematical PhysicsSpin-½description
We define the qubit as a pair of singlet and triplet states of two electrons in a He-type quantum dot (QD) placed in a diluted magnetic semiconductor (DMS) medium. The molecular field is here essential as it removes the degeneracy of the triplet state and strongly enhances the Zeeman splitting. Methods of qubit rotation as well as two-qubit operations are suggested. The system of a QD in a DMS is described in a way which allows an analysis of the decoherence due to spin waves in the DMS subsystem.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2005-06-01 | Open Systems & Information Dynamics |