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We propose a method to generate path-entangled $N00N$-state photons from quantum dots (QDs) and coupled nanocavities. In the systems we considered, cavity mode frequencies are tuned close to the biexciton two-photon resonance. Under…

Quantum Physics · Physics 2017-09-13 Kenji Kamide , Yasutomo Ota , Satoshi Iwamoto , Yasuhiko Arakawa

We demonstrate purely resonant continuous-wave optical laser excitation to coherently prepare an excitonic state of a single semiconductor quantum dot (QDs) inside a high quality pillar microcavity. As a direct proof of QD resonance…

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

We investigate theoretically the model of two \qubits" system (one qubit having an auxiliary level) interacting with a single-mode resonator in the ultrastrong coupling regime. We show that a single photon could simultaneously excite two…

Quantum Physics · Physics 2018-01-16 Qian Bin , Xin-You Lü , Shang-Wu Bin , Gui-Lei Zhu , Ying Wu

The interaction between a single emitter and a single photon is a fundamental aspect of quantum optics. This interaction allows for the study of various quantum processes, such as emitter-mediated single-photon scattering and effective…

An optical source that produces single photon pulses on demand has potential applications in linear optics quantum computation, provided that stringent requirements on indistinguishability and collection efficiency of the generated photons…

Quantum Physics · Physics 2009-11-10 A. Kiraz , M. Atature , A. Imamoglu

A potential scheme is proposed to generate complete sets of entangled photons in the context of cavity quantum electrodynamics (QED). The scheme includes twice interactions of atoms with cavities, in which the first interaction is made in…

Quantum Physics · Physics 2007-05-23 X. L. Zhang , M. Feng , K. L. Gao

We analytically derive the upper bound on the overall efficiency of single-photon generation based on cavity quantum electrodynamics (QED), where cavity internal loss is treated explicitly. The internal loss leads to a tradeoff relation…

Quantum Physics · Physics 2019-06-05 Hayato Goto , Shota Mizukami , Yuuki Tokunaga , Takao Aoki

Colloidal quantum dots (QDs) are an attractive medium for nonlinear optics and deterministic heterogeneous integration with photonic devices. Their intrinsic nonlinearities can be strengthened further by coupling QDs to low mode-volume…

We investigate the power-dependent photoluminescence spectra from a strongly coupled quantum dot-cavity system using a quantum master equation technique that accounts for incoherent pumping, pure dephasing, and fermion or boson statistics.…

Mesoscale and Nanoscale Physics · Physics 2013-05-31 P. Yao , P. K. Pathak , E. Illes , S. Hughes , S. Munch , S. Reitzenstein , P. Franeck , A. Loffler , T. Heindel , S. Höfling , L. Worschech , A. Forchel

On-chip emitters that can generate single and entangled photons are essential building blocks for developing photonic quantum information processing technologies in a scalable fashion. Semiconductor quantum dots (QDs) are attractive…

Cavity quantum-electrodynamics experiments using an atom coupled to a single radiation-field mode have played a central role in testing foundations of quantum mechanics, thus motivating solid-state implementations using single quantum dots…

In this chapter we review the use of semiconductor quantum dots as sources of quantum light. Principally, we focus on resonant two-photon excitation, which is a method that allows for on-demand generation of photon pairs. We explore the…

Quantum Physics · Physics 2016-08-08 Ana Predojević

In the SUPER scheme (Swing-UP of the quantum EmitteR population), excitation of a quantum emitter is achieved with two off-resonant, red-detuned laser pulses. This allows generation of high-quality single photons without the need of complex…

Quantum Physics · Physics 2024-02-08 Nils Heinisch , Nikolas Köcher , David Bauch , Stefan Schumacher

We present a formal theory of single quantum-dot coupling to a planar photonic crystal that supports quasi-degenerate cavity modes, and use this theory to describe, and optimize, entangled-photon-pair generation via the biexciton-exciton…

Other Condensed Matter · Physics 2015-05-13 P. K. Pathak , S. Hughes

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…

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 strong-coupling regime of cavity-quantum-electrodynamics (cQED) represents light-matter interaction at the fully quantum level. Adding a single photon shifts the resonance frequencies, a profound nonlinearity. cQED is a test-bed of…

We present a basic building block of a quantum network consisting of a quantum dot coupled to a source cavity, which in turn is coupled to a target cavity via a waveguide. The single photon emission from the high-Q/V source cavity is…

Quantum Physics · Physics 2009-11-13 Dirk Englund , Andrei Faraon , Bingyang Zhang , Yoshihisa Yamamoto , Jelena Vuckovic

Single epitaxially-grown semiconductor quantum dots have great potential as single photon sources for photonic quantum technologies, though in practice devices often exhibit non-ideal behavior. Here, we demonstrate that amplitude modulation…

Quantum Physics · Physics 2013-03-08 Serkan Ates , Imad Agha , Angelo Gulinatti , Ivan Rech , Antonio Badolato , Kartik Srinivasan