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A sequence of single photons is emitted on demand from a single three-level atom strongly coupled to a high-finesse optical cavity. The photons are generated by an adiabatically driven stimulated Raman transition between two atomic ground…

Quantum Physics · Physics 2009-11-07 Axel Kuhn , Markus Hennrich , Gerhard Rempe

Photonic quantum technologies are on the verge of finding applications in everyday life with quantum cryptography and the quantum internet on the horizon. Extensive research has been carried out to determine suitable quantum emitters and…

Mesoscale and Nanoscale Physics · Physics 2017-08-02 Marcus Reindl , Klaus D. Joens , Daniel Huber , Christian Schimpf , Yongheng Huo , Val Zwiller , Armando Rastelli , Rinaldo Trotta

Deterministic single-photon sources are important and ubiquitous in quantum information protocols. However, to the best of our knowledge, none of them work in the ultrastrong light-matter coupling regime, and each excitation process can…

High-quality sources of single photons are of paramount importance for quantum communication, sensing and metrology. To these ends, resonantly excited two-level systems based on self-assembled quantum dots have recently generated widespread…

We propose an efficient, scalable, and deterministic scheme to generate multiple indistinguishable photons over independent channels, on demand. Our design relies on multiple single-photon sources, each coupled to a waveguide, and all of…

Quantum Physics · Physics 2025-03-18 Ming Li , Juan José García-Ripoll , Tomás Ramos

The implementation and engineering of bright and coherent solid state quantum light sources is key for the realization of both on chip and remote quantum networks. Despite tremendous efforts for more than 15 years, the combination of these…

The key challenge to scalable optical quantum computing, boson sampling, and quantum metrology is sources of single photons with near-unity system efficiency and simultaneously near-perfect indistinguishability in all degrees of freedom…

The integration of on-demand quantum emitters into photonic integrated circuits (PICs) has drawn much of attention in recent years, as it promises a scalable implementation of quantum information schemes. A central property for several…

A scalable on-chip single-photon source at telecommunications wavelengths is an essential component of quantum communication networks. In this work, we numerically construct a pulse-regulated single-photon source based on an optical…

Quantum Physics · Physics 2018-11-14 Yuyi Yan , Yanbei Cheng , Shengguo Guan , Danying Yu , Zhenglu Duan

We present a 1 GHz-clocked, maximally entangled and on-demand photon pair source based on droplet etched GaAs quantum dots using two-photon excitation. By employing these GaP microlensenhanced devices in conjunction with their substantial…

Quantum Physics · Physics 2021-06-29 Caspar Hopfmann , Weijie Nie , Nand Lal Sharma , Carmen Weigelt , Fei Ding , Oliver G. Schmidt

Within optical quantum information processing, single-photon sources based on a two-level system in a semiconductor material allow for on-demand generation of single photons. To initiate the spontaneous emission process, it is necessary to…

Fast, high efficiency, and low error single photon sources are required for implementation of a number of quantum information processing applications. The fastest triggered single photon sources to date have been demonstrated using…

Quantum Physics · Physics 2013-08-29 Sonia Buckley , Kelley Rivoire , Jelena Vuckovic

We describe a practical implementation of a (semi-deterministic) photon gun based on stimulated Raman adiabatic passage pumping and the strong enhancement of the photonic density of states in a photonic band-gap material. We show that this…

The biexciton-exciton emission cascade commonly used in quantum-dot systems to generate polarization entanglement yields photons with intrinsically limited indistinguishability. In the present work we focus on the generation of pairs of…

Quantum Physics · Physics 2023-05-12 David Bauch , Dustin Siebert , Klaus D. Jöns , Jens Förstner , Stefan Schumacher

Control of single photon wave-packets is an important resource for developing hybrid quantum systems which are composed of different physical systems interacting via photons. Here we extend this control to triggered photons emitted by a…

Quantum Physics · Physics 2011-05-25 Matthew T. Rakher , Kartik Srinivasan

We investigate theoretically the generation of indistinguishable single photons from a strongly dissipative quantum system placed inside an optical cavity. The degree of indistinguishability of photons emitted by the cavity is calculated as…

Mesoscale and Nanoscale Physics · Physics 2015-05-20 Thomas Grange , Gaston Hornecker , David Hunger , Jean-Philippe Poizat , Jean-Michel Gerard , Pascale Senellart , Alexia Auffeves

Scalable solid state single-photon sources (SPSs) with triggered single-photon emission rates exceeding a few GHz would aid in the wide technological adoption of photonic quantum technologies. We demonstrate triggering of a quantum dot (QD)…

Mesoscale and Nanoscale Physics · Physics 2026-02-18 Alexander S. Kuznetsov , Meysam Saeedi , Zixuan Wang , Kevin L. Silverman , Klaus Biermann

The desiderata for an ideal photon source are high brightness, high single-photon purity, and high indistinguishability. Defining brightness at the first collection lens, these properties have been simultaneously demonstrated with…

An efficient, scalable source of shaped single photons that can be directly integrated with optical fiber networks and quantum memories is at the heart of many protocols in quantum information science. We demonstrate a deterministic source…

The on-demand emission of coherent and indistinguishable electrons by independent synchronized sources is a challenging task of quantum electronics, in particular regarding its application for quantum information processing. Using two…

Mesoscale and Nanoscale Physics · Physics 2013-01-31 E. Bocquillon , V. Freulon , J. -M Berroir , P. Degiovanni , B. Plaçais , A. Cavanna , Y. Jin , G. Fève