All-optical implementation of a dynamic-decoupling protocol for hole spins in (In,Ga)As quantum dots

Abstract

We demonstrate the potential of a periodic laser-pulse protocol for dynamic decoupling of hole spins in (In,Ga)As quantum dots from surrounding baths. When doubling the repetition rate of inversionlaser pulses between two reference pulses for orienting the spins, we find that the spin coherence time is increased by a factor of two.

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References in corpus (9)

• Quantum Computing
• Fault-Tolerant Quantum Dynamical Decoupling
• Spin decoherence of a heavy hole coupled to nuclear spins in a quantum dot
• Electron Spin Dephasing due to Hyperfine Interactions with a Nuclear Spin Bath
• Hole - Nuclear Spin Interaction in Quantum Dots
• Universal pulse sequence to minimize spin dephasing in the central spin decoherence problem
• Theory of fast optical spin rotation in a quantum dot based on geometric phases and trapped states
• Direct measurement of the hole-nuclear spin interaction in single quantum dots
• Hybridization and spin decoherence in heavy-hole quantum dots