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Article
Open AccessCoherent light scattering from a telecom C-band quantum dot
Quantum networks have the potential to transform secure communication via quantum key distribution and enable novel concepts in distributed quantum computing and sensing. Coherent quantum light generation at t...
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Article
Open AccessQuantum teleportation using highly coherent emission from telecom C-band quantum dots
A practical way to link separate nodes in quantum networks is to send photons over the standard telecom fibre network. This requires sub-Poissonian photon sources in the wavelength band around 1550 nm, with ph...
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Article
Open AccessA quantum light-emitting diode for the standard telecom window around 1,550 nm
Single photons and entangled photon pairs are a key resource of many quantum secure communication and quantum computation protocols, and non-Poissonian sources emitting in the low-loss wavelength region around...
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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
Coherent dynamics of a telecom-wavelength entangled photon source
Quantum networks can interconnect remote quantum information processors, allowing interaction between different architectures and increasing net computational power. Fibre-optic telecommunications technology o...
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Article
Quantum teleportation of laser-generated photons with an entangled-light-emitting diode
Quantum teleportation can transfer information between physical systems, which is essential for engineering quantum networks. Of the many technologies being investigated to host quantum bits, photons have obvi...
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Article
Quantum teleportation using a light-emitting diode
Teleportation of optical qubits can enable reliable logic operations in massively parallel quantum computers, as well as the formation of secure quantum networks. Photon teleportation has previously used laser...
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Article
Electric-field-induced coherent coupling of the exciton states in a single quantum dot
The ability to generate entangled photon pairs from a quantum dot critically depends on the size of the fine-structure splitting of its exciton states. A demonstration of the ability to tune this splitting wit...
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Article
An entangled-light-emitting diode
For optical quantum computation and related information technologies to fulfil their promise, they will require a source of entangled photons that can be delivered efficiently on demand. Existing entangled-lig...
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Article
Quantum memories
We perform a review of various approaches to the implementation of quantum memories, with an emphasis on activities within the quantum memory sub-project of the EU integrated project “Qubit Applications”. We b...
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Article
Application of proton radiography in experiments of relevance to inertial confinement fusion
Multi-Mev proton beams generated by target normal sheath acceleration (TNSA) during the interaction of an ultra intense laser beam (I≥1019 W/cm2) with a thin metallic foil (thickness of the order of a few tens of...
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Article
The first target experiments on the National Ignition Facility
A first set of shock timing, laser-plasma interaction, hohlraum energetics and hydrodynamic experiments have been performed using the first 4 beams of the National Ignition Facility (NIF), in support of indi...
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Article
A semiconductor source of triggered entangled photon pairs
Entangled photon pairs are an important resource in quantum optics1, and are essential for quantum information2 applications such as quantum key distribution3,4 and controlled quantum logic operations5. The radia...
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Chapter
Quantum dots for single photon and photon pair technology
The excitation of a quantum dot from its ground state depends on the probabilistic nature of carrier capture, and thus radiative decay can occur via a multi photon cascade. It is also possible that non-radiati...
