Strong Hyperfine-Induced Modulation of an Optically-Driven Hole Spin in an InAs Quantum Dot

Abstract

Compared to electrons, holes in InAs quantum dots have a significantly weaker hyperfine interaction that leads to less dephasing from nuclear spins. Thus many recent studies have suggested that nuclear spins are unimportant for hole spin dynamics compared to electric field fluctuations. We show that the hole hyperfine interaction can have a strong effect on hole spin coherence measurements through a nuclear feedback effect. The nuclear polarization is generated through a unique process that is dependent on the anisotropy of the hole hyperfine interaction and the coherent precession of nuclear spins, giving rise to strong modulation at the nuclear precession frequency.

13 pages, 4 figures

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Cited by in corpus (15)

• Generation of heralded entanglement between distant hole spins
• Depolarization of Electronic Spin Qubits Confined in Semiconductor Quantum Dots
• Theory of dynamic nuclear polarization and feedback in quantum dots
• Measurement of spin coherence using Raman scattering
• Hyperfine interaction for holes in quantum dots: k.p model
• Interplay of valley polarization and dynamic nuclear polarization in 2D transition metal dichalcogenides
• Controllable photonic time-bin qubits from a quantum dot
• Coherent population trapping combined with cycling transitions for quantum dot hole spins using triplet trion states
• Theory of box-model hyperfine couplings and transport signatures of long-range nuclear-spin coherence in a quantum-dot spin valve
• The coherence of quantum dot confined electron- and hole-spin in low external magnetic field
• Hole-Spin-Echo Envelope Modulations
• Maximizing the purity of a qubit evolving in an anisotropic environment
• Homogeneous Linewidth Narrowing of the Charged Exciton via Nuclear Spin Screening in an InAs/GaAs Quantum Dot Ensemble
• Hidden anisotropy controls spin-photon entanglement in a charged quantum dot
• Direct high resolution resonant Raman scattering measurements of InAs quantum dot dynamic nuclear spin polarization states