On-demand semiconductor single-photon source with near-unity indistinguishability
Yu-Ming He,Yu He,Yu-Jia Wei,Dian Wu,Mete Atatüre,Mete Atatüre,Christian Schneider,Sven Höfling,Martin Kamp,Chao-Yang Lu,Chao-Yang Lu,Jian-Wei Pan +11 more
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.read more
Citations
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Optical implementation of spin squeezing
Takafumi Ono,Javier Sabines-Chesterking,Hugo Cable,Jeremy L. O'Brien,Jonathan C. F. Matthews +4 more
TL;DR: In this paper, a model of optical spin-squeezing, which uses post-selection and photon subtraction from the state generated using a parametric downconversion photon source, was investigated.
Journal ArticleDOI
Effects of resonant-laser excitation on the emission properties in a single quantum dot
TL;DR: In this paper, the authors studied the resonance fluorescence in a solid-state system (a quantum dot) with the addition of weak, non-resonant light and found that the change in the fluorescence intensity and linewidth was linked to both the non-reonant and resonant laser powers.
Journal ArticleDOI
Controllable photonic time-bin qubits from a quantum dot
J. P. Lee,J. P. Lee,L. M. Wells,L. M. Wells,B. Villa,B. Villa,Sokratis Kalliakos,R. M. Stevenson,David J. P. Ellis,Ian Farrer,David A. Ritchie,Anthony J. Bennett,Andrew J. Shields +12 more
TL;DR: In this paper, the phase of a laser driving a spin-flip Raman transition in a single-hole-charged InAs quantum dot is controlled, with only a moderate loss in coherence.
Journal ArticleDOI
Probing bath-induced entanglement in a qubit pair by measuring photon correlations
Ovidiu Cotlet,Brendon W. Lovett +1 more
TL;DR: In this article, the authors describe the interaction of a pair of uncoupled, driven, self-assembled quantum dots with a common phonon environment, and find that this coupling effectively generates two kinds of interaction between the two QDs: an elastic coupling mediated by virtual phonons and an inelastic coupling mediating by real phonons.
Posted Content
Swing-up of quantum emitter population using detuned pulses
Thomas K. Bracht,Michael Cosacchi,Tim Seidelmann,Moritz Cygorek,Alexei Vagov,V. Martin Axt,Tobias Heindel,Doris E. Reiter +7 more
TL;DR: In this article, a coherent excitation scheme using off-resonant pulses was proposed to swing up the number of excited states in a single photon source by using two pulses with different strong detunings of the same sign.
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.
Journal ArticleDOI
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
Pieter Kok,William J. Munro,Kae Nemoto,Timothy C. Ralph,Jonathan P. Dowling,Gerard J. Milburn +5 more
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
Peter Michler,Alper Kiraz,Christoph Becher,Winston V. Schoenfeld,Pierre Petroff,Lidong Zhang,E. L. Hu,Atac Imamoglu,Atac Imamoglu +8 more
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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Near-optimal single-photon sources in the solid state
N. Somaschi,V. Giesz,L. De Santis,J. C. Loredo,Marcelo P. Almeida,Gaston Hornecker,Gaston Hornecker,Simone Luca Portalupi,Thomas Grange,Thomas Grange,Carlos Antón,Justin Demory,C. Gomez,Isabelle Sagnes,Norberto D. Lanzillotti-Kimura,Aristide Lemaître,Alexia Auffèves,Alexia Auffèves,Andrew White,Loïc Lanco,Loïc Lanco,Pascale Senellart +21 more