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We examine the entanglement creation between two mutually independent two-level atoms immersed in a thermal bath of quantum scalar fields in the presence of a perfectly reflecting plane boundary. With the help of the master equation that…

Quantum Physics · Physics 2007-05-23 Jialin Zhang , Hongwei Yu

Energy-time entangled photons provide new opportunities for controlling multiphoton absorption beyond classical limits. Here, we investigate biexciton generation in nanocrystal quantum dots driven by energy-time-entangled quantum light…

Chemical Physics · Physics 2026-05-27 Kaiyue Peng , Chieh Tsao , Hendrik Utzat , Eran Rabani

We propose a method for the optimal time-controlled generation of entangled itinerant particles, using on-demand sources in a conductor in the quantum Hall regime. This entanglement pump is realized by applying periodic, tailored voltage…

Mesoscale and Nanoscale Physics · Physics 2012-02-28 Y. Sherkunov , N. d'Ambrumenil , P. Samuelsson , M. Buttiker

We study the generation of entanglement between two qubits which communicate through a single cavity mode of quantum light but have no direct interaction. We show that such entanglement can be generated simply by exchanging quanta with a…

Quantum Physics · Physics 2023-06-21 Seongjin Ahn , Andrey S. Moskalenko , Vladimir Y. Chernyak , Shaul Mukamel

We describe here the realization of a single electron source similar to single photon sources in optics. On-demand single electron injection is obtained using a quantum dot connected to the conductor via a tunnel barrier of variable…

We compute the entanglement entropy variation between initial (separable or entangled in the momenta) and final states $\Delta S_E$ in an elastic scattering of a bipartite system composed by two interacting scalar particles. We perform a…

High Energy Physics - Phenomenology · Physics 2020-07-24 Ricardo Faleiro , Rafael Pavão , Helder Alexander , Brigitte Hiller , Alex Blin , Marcos Sampaio

In an accompanying paper [arxiv:2511.04488], we introduced an approach to interface trapped-ion quantum processors with ensemble-based quantum memories by matching a spontaneous parametric down conversion source to both the ions and the…

Quantum Physics · Physics 2026-05-19 Benedikt Tissot , Soubhadra Maiti , Emil R. Hellebek , Anders Søndberg Sørensen

We study the system that two atoms simultaneously interact with a single-mode thermal field via different couplings and different spontaneous emission rates when two-photon process is involved. It is found that we indeed can employ the…

Quantum Physics · Physics 2009-09-29 Y. Q. Guo , L. Zhou , H. S. Song

We study an experimental scheme to generate Gaussian two-mode entangled states via beam splitter. Specifically, we consider a nonclassical Gaussian state (squeezed state) and a thermal state as two input modes, and evaluate the degree of…

Quantum Physics · Physics 2009-11-13 Rabia Tahira , Manzoor Ikram , Hyunchul Nha , M. Suhail Zubairy

Entanglement is not only the resource that fuels many quantum technologies but also plays a key role for some of the most profound open questions of fundamental physics. Experiments controlling quantum systems at the single quantum level…

Quantum Physics · Physics 2021-06-02 Bjarne Bergh , Martin Gärttner

Entanglement of light and multiple vibrations is a key resource for multi-channel quantum information processing and memory. However, entanglement generation is generally suppressed, or even fully destroyed, by the dark-mode (DM) effect…

Quantum Physics · Physics 2022-08-08 Deng-Gao Lai , Jie-Qiao Liao , Adam Miranowicz , Franco Nori

Quantum key distribution---exchanging a random secret key relying on a quantum mechanical resource---is the core feature of secure quantum networks. Entanglement-based protocols offer additional layers of security and scale favorably with…

The development of sources delivering non-classical states of light is one of the main needs for applications of optical quantum information science. Here, we demonstrate the generation of non-classical states of light using strong-laser…

A general entanglement generation protocol between remote stationary qubits using single-photon reflection in a photonic network is explored theoretically. The nodes of the network consist of single qubits that are typically represented by…

Quantum Physics · Physics 2025-03-21 Ferdinand Omlor , Benedikt Tissot , Guido Burkard

Quantum entanglement is the characteristic quantum correlation. Here we use this concept to analyze the quantum entanglement generated by Schwinger production of particle-antiparticle pairs in an electric field, as well as the change of…

High Energy Physics - Theory · Physics 2017-02-15 Yujie Li , Yue Dai , Yu Shi

Entangled photons are widely used in quantum technologies. Many photonic experiments generate them with probabilistic photon-pair sources that can be modeled as squeeze operators. In practice, these sources are usually treated in the…

Quantum Physics · Physics 2026-05-05 Carlos Ruiz-Gonzalez , Mario Krenn , Xuemei Gu

Engineering single-photon states endowed with Orbital Angular Momentum (OAM) is a powerful tool for quantum information photonic implementations. Indeed, thanks to its unbounded nature, OAM is suitable to encode qudits allowing a single…

We study the optimal generation of entanglement between two qubits subject to local unitary control. With the only assumptions of linear control and unitary dynamics, by means of a numerical protocol based on the variational approach…

Quantum Physics · Physics 2009-11-13 Raffaele Romano , Alessio Del Fabbro

The generation of entanglement across different nodes in distributed quantum architectures plays a pivotal role for different applications. In particular, deterministic, robust, and fast protocols that prepare genuine multipartite entangled…

Quantum Physics · Physics 2024-10-18 G. F. Peñas , J. -J. García-Ripoll , R. Puebla

We demonstrate how to create maximal entanglement between two qubits that are encoded in two spectrally distinct solid-state quantum emitters embedded in a waveguide interferometer. The optical probe is provided by readily accessible…

Quantum Physics · Physics 2021-11-10 Elena Callus , Pieter Kok