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Using two optical pulses of different frequencies, we demonstrate entanglement and disentanglement of the electronic states in Stranski-Krastanov quantum dots. Resonant two-photon excitation of the biexciton creates an entangled Bell-like…

Other Condensed Matter · Physics 2015-06-25 I. A. Akimov , J. T. Andrews , F. Henneberger

We find that the spontaneous and collective emissions have a strong influence on the excitation of two-level absorbers (atoms, molecules) interacting in resonance with the plasmonic mode near the metal nanoparticle. The spontaneous and…

Optics · Physics 2024-07-25 Igor E. Protsenko , Alexander V. Uskov , Nikolay V. Nikonorov

This paper examines the feasibility of constructing an experiment which detects the atomic stimulation of a photon emission process. A beam of atoms (bosons) in an excited state is passed over an atomic trap which traps the atoms when they…

atom-ph · Physics 2009-10-28 J. J. Hope , C. M. Savage

Waveguide quantum electrodynamics (WQED) provides a powerful platform for exploring quantum optical phenomena by enhancing atom-photon interactions through photon confinement in a waveguide. Here we investigate the photon-scattering…

Quantum Physics · Physics 2026-03-31 Yanjin Yue , Rui-Yang Gong , Shengyong Li , Ze-Liang Xiang

We derive a generalized master equation for multiphoton pulses interacting with multiple emitters in a waveguide-quantum electrodynamics system where the emitter frequency can be modulated and the effects of non-guided modes can also be…

Quantum Physics · Physics 2020-11-06 Zeyang Liao , Yunning Lu , M. Suhail Zubairy

We demonstrate the in-plane emission of highly-polarized single photons from an InAs quantum dot embedded into a photonic crystal waveguide. The spontaneous emission rates are Purcell-enhanced by the coupling of the quantum dot to a…

The emission of light from a multiply excited atomic ensemble is examined and it is shown how symmetric (spin-wave) and non-symmetric states of excitation radiate into spatially separate field modes. This observation has potential…

Quantum Physics · Physics 2012-03-15 F. Bariani , T. A. B. Kennedy

We have investigated theoretically the tuning characteristics of a Josephson junction within a microcavity for one-photon spontaneous emission and for one-photon and two-photon stimulated emission. For spontaneous emission, we have…

Superconductivity · Physics 2015-06-24 Andrea T. Joseph , Robin Whiting , Roger Andrews

We report on the fast excitation of a single atom coupled to an optical cavity using laser pulses that are much shorter than all other relevant processes. The cavity frequency constitutes a control parameter that allows the creation of…

Quantum Physics · Physics 2008-12-03 J. Bochmann , M. Muecke , G. Langfahl-Klabes , C. Erbel , B. Weber , H. P. Specht , D. L. Moehring , G. Rempe

Pairs of entangled vortex photons can promise new prospects of application in quantum computing and cryptography. We investigate the possibility of generating such states via two-level atom emission induced by a single photon wave packet…

Quantum Physics · Physics 2025-09-30 D. V. Grosman , G. K. Sizykh , E. O. Lazarev , G. V. Voloshin , D. V. Karlovets

We discuss the generation of two-atom entanglement inside a resonant microcavity under stimulated emission (STE) interaction. The amount of entanglement is shown based on different atomic initial state. For each kind of intial state, we…

Quantum Physics · Physics 2009-11-11 Y. Q. Guo , H. S. Song , L. Zhou , X. X. Yi

A semiclassical model is used to investigate the possibility of selectively exciting one of two closely spaced, uncoupled Raman transitions. The duration of the intense pump pulse that creates the Raman coherence is shorter than the…

Chemical Physics · Physics 2009-11-10 S. A. Malinovskaya , P. H. Bucksbaum , P. R. Berman

Expression for the probability of induced emission of high-order harmonics is obtained in the region where the multiphoton approximation is applicable to the description of the ionization of an atom. The dependence of this probability on…

Atomic Physics · Physics 2017-09-19 K. V. Ivanyan

We develop a wavefunction approach to describe the scattering of two photons on a quantum emitter embedded in a one-dimensional waveguide. Our method allows us to calculate the exact dynamics of the complete system at all times, as well as…

We study the scattering problem of photon and polariton in a one-dimensional coupled-cavity system. Analytical approximate analysis and numerical simulation show that a photon can stimulate the photon emission from a polariton through…

Quantum Physics · Physics 2016-02-17 Ci. Li , Zhi. Song

Stimulated emission tomography is a powerful and successful technique to both improve the resolution and experimentally simplify the task of determining the modal properties of biphotons. In the present manuscript we provide a theoretical…

We study the possibility to influence the lifetime of nuclear isomeric states with the aid of incident fluxes of photons. We assume that a nucleus initially in an isomeric state |i> first absorbs an incident photon of energy E_{ni} to reach…

Nuclear Experiment · Physics 2008-11-26 Silviu Olariu , Agata Olariu

We consider a system of $N$ identical independent Markov processes, each taking values 0 or 1. The system describes a stochastic dynamics of an ensemble of two-level atoms. The atoms are exposed to a photon flux. Under the photon flux…

Probability · Mathematics 2019-05-01 E. Pechersky , S. Pirogov , G. M. Schütz , A. Vladimirov , A. Yambartsev

We discuss an experimental setup where two laser-driven atoms spontaneously emit photons and every photon causes a ``click'' at a point on a screen. By deriving the probability density for an emission into a certain direction from basic…

Quantum Physics · Physics 2015-06-26 Almut Beige , Christian Schoen , Jiannis Pachos

We propose an approach to simultaneously excite two atoms by using cavity-assisted Raman process in combination with cavity photon-mediated interaction. The system consists of a two-level atom and a $\Lambda$-type or V-type three-level…

Quantum Physics · Physics 2020-04-24 Peng Zhao , Xinsheng Tan , Haifeng Yu , Shi-Liang Zhu , Yang Yu