Robust manipulation of electron spin coherence in an ensemble of singly charged quantum dots

Abstract

Using the recently reported mode locking effect we demonstrate a highly robust control of electron spin coherence in an ensemble of (In,Ga)As quantum dots during the single spin coherence time. The spin precession in a transverse magnetic field can be fully controlled up to 25 K by the parameters of the exciting pulsed laser protocol such as the pulse train sequence, leading to adjustable quantum beat bursts in Faraday rotation. Flipping of the electron spin precession phase was demonstrated by inverting the polarization within a pulse doublet sequence.

5 Pages, 3 figures

References in corpus (10)

• Quantum Computation with Quantum Dots
• Single-shot read-out of an individual electron spin in a quantum dot
• Single-shot readout of electron spin states in a quantum dot using spin-dependent tunnel rates
• Theory of electron spin decoherence by interacting nuclear spins in a quantum dot
• Spin-based all-optical quantum computation with quantum dots: understanding and suppressing decoherence
• Optical control of spin coherence in singly charged (In,Ga)As/GaAs quantum dots
• Theory of Quantum Optical Control of Single Spin in a Quantum Dot
• Optical Read-Out and Initialization of an Electron Spin in a Single Quantum Dot
• Measurement, control, and decay of quantum-dot spins
• Theory of nonlinear optical spectroscopy of electron spin coherence in quantum dots

Cited by in corpus (15)

• Nuclear Spins in Nanostructures
• Pump-Probe Faraday Rotation and Ellipticity in an Ensemble of Singly Charged Quantum Dots
• Coherent spin dynamics of electrons and holes in semiconductor quantum wells and quantum dots under periodical optical excitation: resonant spin amplification versus spin mode-locking
• Temperature induced spin coherence dissipation in quantum dots
• Influence of the nuclear Zeeman effect on mode locking in pulsed semiconductor quantum dots
• Beating in electronic transport through quantum dot based devices
• Generation and detection of mode-locked spin coherence in (In,Ga)As/GaAs quantum dots by laser pulses of long duration
• Theory of the time-resolved Kerr rotation on trapped holes
• Interplay of spin mode locking and nuclei-induced frequency focusing in quantum dots
• Quantum Hall Charge Sensor for Single-Donor Nuclear Spin Detection in Silicon
• Quantum Coherence from Periodic Driving with Laser Pulses and Decay
• Increased coherence time in narrowed bath states in quantum dots
• Driven dynamics of a quantum dot electron spin coupled to bath of higher-spin nuclei
• Optical Pumping of Bardeen-Cooper-Schrieffer Superconductors
• Quantifying electron-nuclear spin entanglement dynamics in central-spin systems using one-tangles