Confluence of resonant laser excitation and bi-directional quantum dot nuclear spin polarization

Abstract

Resonant laser scattering along with photon correlation measurements have established the atom-like character of quantum dots. Here, we present measurements which challenge this identification for a wide range of experimental parameters: the absorption lineshapes that we measure at magnetic fields exceeding 1 Tesla indicate that the nuclear spins polarize by an amount that ensures locking of the quantum dot resonances to the incident laser frequency. In contrast to earlier experiments, this nuclear spin polarization is bi-directional, allowing the electron+nuclear spin system to track the changes in laser frequency dynamically on both sides of the quantum dot resonance. Our measurements reveal that the confluence of the laser excitation and nuclear spin polarization suppresses the fluctuations in the resonant absorption signal. A master equation analysis shows narrowing of the nuclear Overhauser field variance, pointing to potential applications in quantum information processing.

References in corpus (17)

• Driven coherent oscillations of a single electron spin in a quantum dot
• Electron spin decoherence in quantum dots due to interaction with nuclei
• Hyperfine interaction in a quantum dot: Non-Markovian electron spin dynamics
• Relaxation, dephasing, and quantum control of electron spins in double quantum dots
• Voltage-Controlled Optics of a Quantum Dot
• Suppressing Spin Qubit Dephasing by Nuclear State Preparation
• Knight Field Enabled Nuclear Spin Polarization in Single Quantum Dots
• Electron Spin Dephasing due to Hyperfine Interactions with a Nuclear Spin Bath
• Locking electron spins into magnetic resonance by electron-nuclear feedback
• Nuclear Spin Switch in Semiconductor Quantum Dots
• Dynamics of Quantum Dot Nuclear Spin Polarization Controlled by a Single Electron
• Controlling a mesoscopic spin environment by quantum bit manipulation
• Dynamic nuclear polarization of a single charge-tunable InAs/GaAs quantum dot
• Nonlinear dynamics of quantum dot nuclear spins
• Demagnetization of Quantum Dot Nuclear Spins: Breakdown of the Nuclear Spin Temperature Approach
• Electrically-Driven Reverse Overhauser Pumping of Nuclear Spins in Quantum Dots
• Nuclear Tuning and Detuning of the Electron Spin Resonance in a Quantum Dot

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