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Coherent state transfer between an electron- and nuclear spin in 15N@C60
Coherent state transfer electron- and nuclear spin
2010/11/25
Electron spin qubits in molecular systems o er high reproducibility and the ability to self assemble into larger architectures. However, interactions between neighbouring qubits are `always-on' and al...
Nuclear spin pumping and electron spin susceptibilities
Nuclear spin pumping electron spin susceptibilities
2010/11/23
In this work we present a straightforward formalism to evaluate the nuclear spin dynamics driven by hyperfine interaction with non-equilibrium electron spins. To describe the dynamics up to second ord...
The qubit states decoherence in antiferromagnet-based nuclear spin model of quantum register
Easy-axis antiferromagnet decoherence indirect coupling inhomogeneous magnetic field nu-clear spin quantum register and qubit
2010/3/10
This study deals with the further development of nuclear spin model of scalable quantum register, which presents the one-dimensional chain of the magnetic atoms with nuclear spins 1/2, substituting th...
Control of the direction and rate of nuclear spin flips in InAs quantum dots using detuned optical pulse trains
nuclear spin flips InAs quantum dots detuned optical pulse trains
2010/4/8
We find that detuning an optical pulse train from electronic transitions in quantum dots controls the direction of nuclear spin flips. The optical pulse train generates electron spins that precess abo...
Suppression of nuclear spin diffusion at a GaAs/AlGaAs interface measured with a single quantum dot nano-probe
Suppression of nuclear spin GaAs/AlGaAs interface quantum dot nano-probe
2010/4/8
Nuclear spin polarization dynamics are measured in optically pumped individual GaAs/AlGaAs interface quantum dots by detecting the time-dependence of the Overhauser shift in photoluminescence (PL) spe...
Coherence and control of quantum registers based on electronic spin in a nuclear spin bath
Coherence quantum registers electronic spin nuclear spin bath
2010/4/7
We consider a protocol for the control of few-qubit registers comprising one electronic spin embedded in a nuclear spin bath. We show how to isolate a few proximal nuclear spins from the rest of the e...