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Open AccessJournal ArticleDOI

On-demand semiconductor single-photon source with near-unity indistinguishability

TLDR
Pulsed resonance fluorescence has been anticipated as the optimum condition for the deterministic generation of high-quality photons with vanishing effects of dephasing and is generated from a single, microcavity-embedded quantum dot under s-shell excitation with 3 ps laser pulses.
Abstract
Pulse-excited resonance-fluorescence single-photons are generated on demand from a single quantum dot embedded in a microcavity under s-shell excitation with an ultrafast laser source.

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Citations
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Scattering into one-dimensional waveguides from a coherently-driven quantum-optical system

TL;DR: In this article, the authors developed a new computational tool and framework for characterizing the scattering of photons by energy-nonconserving Hamiltonians into unidirectional waveguides, for example, with coherent pulsed excitation.
Journal ArticleDOI

An all-silicon single-photon source by unconventional photon blockade

TL;DR: In this article, the authors proposed an alternative all-silicon device that employs a different paradigm, namely the interplay between quantum interference and the third-order intrinsic nonlinearity in a system of two coupled optical cavities.
Journal ArticleDOI

Synchronization of optical photons for quantum information processing.

TL;DR: On the basis of the recent experimental success of single-photon storage with high purity, the HOM interference of two heralded, nearly pure optical photons synchronized through two independent quantum memories is demonstrated for the first time.
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Hyperentanglement of Photons Emitted by a Quantum Dot.

TL;DR: Demonstration of polarization and time-bin hyper-entangled photons emitted from a single quantum dot and two-photon resonant and coherent excitation on a quantum dot system with marginal fine structure splitting yield fidelities to the maximally entangled state.
References
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Journal ArticleDOI

The quantum internet

TL;DR: In this paper, the authors proposed a method for quantum interconnects, which convert quantum states from one physical system to those of another in a reversible manner, allowing the distribution of entanglement across the network and teleportation of quantum states between nodes.
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Measurement of subpicosecond time intervals between two photons by interference.

TL;DR: A fourth-order interference technique has been used to measure the time intervals between two photons, and by implication the length of the photon wave packet, produced in the process of parametric down-conversion.
Journal ArticleDOI

Linear optical quantum computing with photonic qubits

TL;DR: In this article, the authors reviewed the original theory and its improvements, and a few examples of experimental two-qubit gates are given, and the use of realistic components, the errors they induce in the computation, and how these errors can be corrected is discussed.
Journal ArticleDOI

A Quantum Dot Single-Photon Turnstile Device

TL;DR: Using pulsed laser excitation of a single quantum dot, a single- photon turnstile device that generates a train of single-photon pulses was demonstrated.
Journal ArticleDOI

Photonic quantum technologies

TL;DR: The first quantum technology that harnesses quantum mechanical effects for its core operation has arrived in the form of commercially available quantum key distribution systems as mentioned in this paper, which achieves enhanced security by encoding information in photons such that an eavesdropper in the system can be detected.
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