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Open AccessPulse control protocols for preserving coherence in dipolar-coupled nuclear spin baths
Coherence of solid state spin qubits is limited by decoherence and random fluctuations in the spin bath environment. Here we develop spin bath control sequences which simultaneously suppress the fluctuations a...
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Article
Measurement of the spin temperature of optically cooled nuclei and GaAs hyperfine constants in GaAs/AlGaAs quantum dots
Measurement of the nuclear polarization in GaAs/AlGaAs quantum dots through manipulation of the nuclear spin states with radiofrequency pulses reveals polarizations up to 80%.
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Article
Few-second-long correlation times in a quantum dot nuclear spin bath probed by frequency-comb nuclear magnetic resonance spectroscopy
Using a frequency-comb nuclear magnetic resonance spectroscopy technique it is possible to probe the fluctuations in the nuclear spin bath of a self-assembled quantum dot and reveal long nuclear spin correlati...
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Article
Open AccessSuppression of nuclear spin bath fluctuations in self-assembled quantum dots induced by inhomogeneous strain
Interaction with nuclear spins leads to decoherence and information loss in solid-state electron-spin qubits. One particular, ineradicable source of electron decoherence arises from decoherence of the nuclear ...
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Article
Open AccessOptical investigation of the natural electron do** in thin MoS2 films deposited on dielectric substrates
Two-dimensional (2D) compounds provide unique building blocks for novel layered devices and hybrid photonic structures. However, large surface-to-volume ratio in thin films enhances the significance of surface...
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Article
Nuclear spin effects in semiconductor quantum dots
Semiconducting quantum dots are considered candidate materials for realizing spin-based quantum computation devices. This Review examines the main results obtained over the past decade concerning the so-called...
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Article
Open AccessIII–V quantum light source and cavity-QED on Silicon
Non-classical light sources offer a myriad of possibilities in both fundamental science and commercial applications. Single photons are the most robust carriers of quantum information and can be exploited for ...
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Article
Element-sensitive measurement of the hole–nuclear spin interaction in quantum dots
Quantum dots are a promising host for spin-based qubits. Whereas nuclear-field fluctuations adversely affect electron-spin coherence, the smaller hyperfine interaction between holes and nuclei makes holes a pr...
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Article
Structural analysis of strained quantum dots using nuclear magnetic resonance
Strained semiconductor nanostructures can be used to make single-photon sources1, detectors2 and photovoltaic devices3, and could potentially be used to create quantum logic devices4,5. The development of such ap...
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Article
Negatively charged excitons in semimagnetic CdSe/ZnSe/ZnMnSe quantum dots
Low-temperature (T = 1.6 K) photoluminescence (PL) of individual CdSe/ZnSe/ZnMnSe quantum dots (QDs) with different magnitudes of the sp-d exchange interaction between the magnetic impurity ions and charge carrie...
