Dynamic Nuclear Polarization with Single Electron Spins

Abstract

We polarize nuclear spins in a GaAs double quantum dot by controlling two-electron spin states near the anti-crossing of the singlet (S) and m_S=+1 triplet (T+) using pulsed gates. An initialized S state is cyclically brought into resonance with the T+ state, where hyperfine fields drive rapid rotations between S and T+, 'flipping' an electron spin and 'flopping' a nuclear spin. The resulting Overhauser field approaches 80 mT, in agreement with a simple rate-equation model. A self-limiting pulse sequence is developed that allows the steady-state nuclear polarization to be set using a gate voltage.

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References in corpus (20)

• Spins in few-electron quantum dots
• Driven coherent oscillations of a single electron spin in a quantum dot
• Coherent control of a single electron spin with electric fields
• Electron spin decoherence in quantum dots due to interaction with nuclei
• Control and Detection of Singlet-Triplet Mixing in a Random Nuclear Field
• Triplet-Singlet Spin Relaxation via Nuclei in a Double Quantum Dot
• Relaxation, dephasing, and quantum control of electron spins in double quantum dots
• Optical pumping of electronic and nuclear spin in single charge-tunable quantum dots
• Nuclear spin induced oscillatory current in spin-blocked quantum dots
• Long-lived memory for mesoscopic quantum bits
• Differential Charge Sensing and Charge Delocalization in a Tunable Double Quantum Dot
• Hyperfine-mediated gate-driven electron spin resonance
• Optical pumping of quantum dot nuclear spins
• Nuclear spin state narrowing via gate--controlled Rabi oscillations in a double quantum dot
• Nucleus-mediated spin-flip transitions in GaAs quantum dots
• Enhancement of electron spin coherence by optical preparation of nuclear spins
• Large nuclear Overhauser fields detected in vertically-coupled double quantum dots
• Semiclassical dynamics and long time asymptotics of the central-spin problem in a quantum dot
• Quantum Description of Nuclear Spin Cooling in a Quantum Dot
• Quantum versus classical hyperfine-induced dynamics in a quantum dot

Cited by in corpus (96)

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