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Generation of nonclassical light is an essential tool for quantum optics research and applications in quantum information technology. We present realization of the source of nonclassically correlated photon pairs based on the process of…

Quantum Physics · Physics 2017-12-05 L. Podhora , P. Obšil , I. Straka , M. Ježek , L. Slodička

These comments contain two primary improvements to the aforementioned article: Where previously mentioned in passing in section 3.4 of our article, we now provide, using the same basic steps as in Bennink's paper, [Phys. Rev. A 81, 053805…

Quantum Physics · Physics 2025-03-05 James Schneeloch

Single photons and single-photon pairs, inherently nonclassical in their nature, are fundamental elements of quantum sciences and technologies. Here, we propose to realize the nonclassical correlated deterministic photon pairs at the…

Quantum Physics · Physics 2022-04-20 Zhong Peng , Yuangang Deng

We propose a scheme for the controlled generation of Einstein-Podosky-Rosen (EPR) entangled photon pairs from an atom coupled to a high Q optical cavity, extending the prototype system as a source for deterministic single photons. A…

Quantum Physics · Physics 2009-11-11 D. L. Zhou , B. Sun , C. P. Sun , L. You

A high efficiency method for the generation of correlated photon pairs accompanied by a reliable means to characterize the efficiency of that process is needed in the study of correlated photon pairs and entangled states involving more than…

Quantum Physics · Physics 2016-04-20 Yasuo Yamamoto , Goro Oohata , Kohji Mizoguchi

High-harmonic generation is a light up-conversion process occurring in a strong laser field, leading to coherent bursts of extreme ultrashort broadband radiation [1]. As a new perspective, we propose that ultrafast strong-field electronic…

We examine angular distribution of the probability of correlated fluorescence photon emission from a linear chain of identical equidistant two-level atoms. We selectively excite one of the atoms by a resonant laser field. The atoms are…

Quantum Physics · Physics 2018-12-19 Qurrat-ul-ain Gulfam , Zbignew Ficek

Non-classical states of light, such as entangled photon pairs and number states, are essential for fundamental tests of quantum mechanics and optical quantum technologies. The most widespread technique for creating these quantum resources…

Quantum Physics · Physics 2010-07-30 H. Hübel , D. R. Hamel , A. Fedrizzi , S. Ramelow , K. J. Resch , T. Jennewein

We propose a scheme to realize a highly efficient solid state source of photon pairs using cavity-assisted stimulated Raman adiabatic passage (STIRAP) in a single quantum dot, where a single photon from pump pulse and two stokes photons…

Mesoscale and Nanoscale Physics · Physics 2016-09-07 J K Verma , P K Pathak

Entangled photon pairs are key elements in quantum communication and quantum cryptography. State-of-the-art sources of entangled photons are mainly based on parametric down-conversion from nonlinear crystals, which is probabilistic in…

Quantum Physics · Physics 2026-03-19 Adrián Juan-Delgado , Geza Giedke , Javier Aizpurua , Ruben Esteban

We report 10-ps correlated photon pair generation in periodically-poled reverse-proton-exchange lithium niobate waveguides with integrated mode demultiplexer at a wavelength of 1.5-um and a clock of 10 GHz. Using superconducting single…

The generation of entangled photon pairs which are compatible with quantum devices and standard telecommunication channels are critical for the development of long range fiber quantum networks. Aside from wavelength, bandwidth matching and…

Silicon ring resonators are used as photon pair sources by taking advantage of silicon's large third order nonlinearity with a process known as spontaneous four wave mixing. These sources are capable of producing pairs of indistinguishable…

Quantum Physics · Physics 2018-02-14 C. C. Tison , J. A. Steidle , M. L. Fanto , Z. Wang , N. A. Mogent , A. Rizzo , S. F. Preble , P. M. Alsing

This paper reports a novel single mode source of narrow-band entangled photon pairs at telecom wavelengths under continuous wave excitation, based on parametric down conversion. For only 7 mW of pump power it has a created spectral radiance…

Quantum Physics · Physics 2008-02-19 Matthaeus Halder , Alexios Beveratos , Rob T Thew , Corentin Jorel , Hugo Zbinden , Nicolas Gisin

Quantum nonreciprocity-a fundamental phenomenon enabling directional control of quantum states and photon correlations-has long been recognized as pivotal for quantum technologies. However, the experimental realization of nonreciprocal…

Entanglement distribution based on time-bin qubits is an attractive option for emerging quantum networks. We demonstrate a 4.09 GHz repetition rate source of photon pairs entangled across early and late time bins separated by 80 ps.…

We demonstrate the generation of quantum-correlated photon pairs from a Si photonic-crystal coupled-resonator optical waveguide. A slow-light supermode realized by the collective resonance of high-Q and small-mode-volume photonic-crystal…

Random nonlinear layered structures have been found to be a useful source of photon pairs with perfectly indistinguishable un-entangled photons emitted into a very narrow spectral range. Localization of the interacting optical fields…

Quantum Physics · Physics 2009-12-08 Jan Perina , Marco Centini , Concita Sibilia , Mario Bertolotti

We observe time-correlated four photons within a correlation window of 20ns from spontaneous four-wave mixing via a double-Lambda scheme in a cold cloud of Rb-87 atoms. In contrast to high-power pulsed pumping of chi^(2) nonlinear processes…

We demonstrate paired generation of a single photo-electron in a quantum dot and a single photon from a single polarization-entangled photon pair that is generated by spontaneous parametric down conversion. The electron is reated in a GaAs…

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