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We theoretically study the generation of quantum correlations in a hybrid system composed by two interacting semiconductor quantum dots mediated by a metal nanoparticle and coupled to an external laser field. Interactions present in the…

Quantum Physics · Physics 2017-07-18 Kostas Blekos , Maria-Eftaxia Stasinou , Andreas F. Terzis , Emmanuel Paspalakis

We theoretically investigate how the initial state influence the entanglement dynamics between two and three two-level atoms with dipole-dipole interaction (DDI) coupled to a whispering-gallery-mode (WGM) microtoroidal cavity. Two different…

Quantum Physics · Physics 2019-04-08 Emilio H. S. Sousa , J. A. Roversi

We investigate the degree of entanglement between an atom and a driven cavity mode, in the presence of dissipation. Previous work has shown that in the limit of weak driving fields, the steady state entanglement is proportional to the…

Quantum Physics · Physics 2017-11-15 Robert Rogers , Nick Cummings , Leno Pedrotti , Perry Rice

The study of entanglement between bosonic systems is of primary importance for establishing feasible resources needed for implementing quantum information protocols, both in their interacting atomic or photonic realizations. Atomic systems…

Quantum Physics · Physics 2014-12-31 Fabio Gentile , Arianna Montorsi , Marco Roncaglia

Entanglement can be generated by two electrons in a spin-zero state on a semiconducting single-walled carbon nanotube. The two electrons, one weakly bound in a shallow well in the conduction band, and the other injected into the conduction…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 D. Gunlycke , J. H. Jefferson , T. Rejec , A. Ramsak , D. G. Pettifor , G. A. D. Briggs

We analyze the time evolution of quantum entanglement in a model consisting of two two-level atoms interacting with a two-mode electromagnetic field for a variety of initial states. We study two different coupling schemes motivated by the…

Quantum Physics · Physics 2010-10-08 K. Sinha , N. Cummings , B. L. Hu

We study a scheme for entangling two-level atoms located close to the surface of a dielectric microsphere. The effect is based on medium-assisted spontaneous decay, rigorously taking into account dispersive and absorptive properties of the…

Quantum Physics · Physics 2009-11-07 Ho Trung Dung , S Scheel , D-G Welsch , L Knöll

Entanglement lies at the heart of quantum mechanics and in recent years has been identified as an essential resource for quantum information processing and computation. Creating highly entangled multi-particle states is therefore one of the…

Quantum Physics · Physics 2009-11-10 Olaf Mandel , Markus Greiner , Artur Widera , Tim Rom , Theodor W. Haensch , Immanuel Bloch

A practical scheme for entanglement creation between distant atoms located inside a single-mode optical cavity is discussed. We show that the degree of entanglement and the time it takes for the entanglement to reach its optimum value is a…

Quantum Physics · Physics 2015-05-13 S. Natali , Z. Ficek

We consider the dynamical atom-surface Casimir-Polder force in the non-equilibrium configuration of an atom near a perfectly conducting wall, initially prepared in an excited state with the field in its vacuum state. We evaluate the…

Generation of entanglement between two qubits by scattering an entanglement mediator is discussed. The mediator bounces between the two qubits and exhibits a resonant scattering. It is clarified how the degree of the entanglement is…

Quantum Physics · Physics 2007-05-23 Kazuya Yuasa , Hiromichi Nakazato

We consider two qubits prepared in a product state and evolved under the magnetic dipolar interaction (MDI). We describe the dependence of the entanglement generated by the MDI with time, with the interaction parameters, and with the…

Quantum Physics · Physics 2018-08-21 Douglas F. Pinto , Jonas Maziero

We investigate how environment-induced interactions influence the entanglement dynamics of two static atoms placed near a perfectly reflecting boundary. In this setting, the environment-induced interactions include both atom-boundary…

Quantum Physics · Physics 2026-03-02 Ying Chen , Hongwei Yu , Jiawei Hu

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

We show how to create maximal entanglement between spectrally distinct solid-state emitters embedded in a waveguide interferometer. By revealing the rich underlying structure of multi-photon scattering in emitters, we show that a two-photon…

Quantum Physics · Physics 2019-07-17 David L. Hurst , Kristoffer B. Joanesarson , Jake Iles-Smith , Jesper Mørk , Pieter Kok

We study the creation and entanglement of quasiparticle pairs due to a periodic variation of the mode frequencies of a homogeneous quantum system. Depending on the values of the parameters describing the periodic modulation, the number of…

Quantum Gases · Physics 2014-06-27 Xavier Busch , Renaud Parentani , Scott Robertson

Effectiveness of using laser field to produce entanglement between two dipole-interacting identical two-level atoms is considered in detail. The entanglement is achieved by driving the system with a carefully designed laser pulse…

Quantum Physics · Physics 2017-04-26 I. V. Bargatin , B. A. Grishanin , V. N. Zadkov

We describe a scheme with analytic result that allows to generate steady-state entanglement for two atoms over a dissipative bosonic medium. The resonant coupling between the mediating bosonic mode and cavity modes produces three collective…

Quantum Physics · Physics 2014-11-18 Li-Tuo Shen , Xin-Yu Chen , Zhen-Biao Yang , Huai-Zhi Wu , Shi-Biao Zheng

We study the generation of entanglement between two species of neutral cold atoms living on an optical ring lattice, where each group of particles can be described by a $d$-dimensional Hilbert space (qu$d$it). Synthetic magnetic fields are…

Quantum Physics · Physics 2015-06-18 Sebastian A. Reyes , Luis Morales-Molina , Miguel Orszag , Dominique Spehner

We investigate qubit-qubit entanglement mediated by plasmons supported by one-dimensional waveguides. We explore both the situation of spontaneous formation of entanglement from an unentangled state and the emergence of driven steady-state…

Mesoscale and Nanoscale Physics · Physics 2011-01-18 A. Gonzalez-Tudela , D. Martin-Cano , E. Moreno , L. Martin-Moreno , C. Tejedor , F. J. Garcia-Vidal