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相关论文: Unconditional Bell-type state generation for spati…

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In this paper, we propose a scheme for the controlled teleportation of an arbitrary two-atom entangled state $|\phi>_{12}=a|gg>_{12}+b|ge>_{12}+c|eg>_{12}+d|ee>_{12}$ in driven cavity QED. An arbitrary two-atom entangled state can be…

量子物理 · 物理学 2009-01-05 Chuan-Jia Shan , Ji-Bing Liu , Tang-Kun Liu , Yan-Xia Huang , Hong Li

We discuss how to generate entangled Bell states of two nucleons using unpolarized nucleon-nucleon scattering or the exclusive deuteron breakup reaction. We follow the the approach of Z. X. Shen et al., arXiv:2510.24325v1 [nucl-th], where…

核理论 · 物理学 2026-01-21 H. Witala

We present a physical scheme for entanglement concentration of unknown atomic entangled states via cavity decay. In the scheme, the atomic state is used as stationary qubit and photonic state as flying qubit, and a close maximally entangled…

量子物理 · 物理学 2007-05-23 Zhuo-Liang Cao , Li-Hua Zhang , Ming Yang

A novel two-qubit entangling gate for trapped-ion quantum processors is proposed theoretically and demonstrated experimentally. During the gate, double-dressed quantum states are created by applying a phase-modulated continuous driving…

A robust scheme for state preparation and state trapping for the spins of two electrons in a semiconductor double quantum dot is presented. The system is modeled by two spins coupled to two independent bosonic reservoirs. Decoherence…

介观与纳米尺度物理 · 物理学 2007-09-04 Robert Roloff , Walter Pötz

We theoretically investigate the dynamics of two spin qubits interacting with a magnetic medium. A systematic formal framework for this qubit-magnet hybrid system is developed in terms of the steady-state properties of the magnetic medium.…

介观与纳米尺度物理 · 物理学 2022-11-28 Ji Zou , Shu Zhang , Yaroslav Tserkovnyak

A long-lived coherent state and non-linear interaction have been experimentally demonstrated for the vibrational mode of a trapped ion. We propose an implementation of quantum computation using coherent states of the vibrational modes of…

量子物理 · 物理学 2009-11-10 Mauro Paternostro , M. S. Kim , P. L. Knight

We propose a scheme to deterministically generate atomic two-dimensional and three-dimensional entangled states by passing two 87Rb atoms through a high-Q bi-mode cavity alternately. The scheme is insensitive to atomic spontaneous decay…

量子物理 · 物理学 2015-06-11 Peng Shi , Li-Bo Chen , Wen-Dong Li , Chun-Nian Ren , Chun-Hong Zheng , Yong-Jian Gu

In this paper, we propose a high-fidelity scheme for generating entangled states in a system of two and three giant atoms coupled to the coupled resonator waveguide. Our approach leverages the bound state in the continuum, which is robust…

量子物理 · 物理学 2025-01-14 Mingzhu Weng , Hongwei Yu , Zhihai Wang

We propose a scheme for preparation of entangled coherent states for the motion of an ion in a two-dimensional anisotropic trap. In the scheme, the ion is driven by four laser beams along different directions in the ion trap plane,…

量子物理 · 物理学 2019-05-14 Zhi-Rong Zhong , Xin-Jie Huang , Zhen-Biao Yang , Li-Tuo Shen , Shi-Biao Zheng

Up to date, the life time of experimentally demonstrated entangled states has been limited, due to their fragility under decoherence and dissipation. Therefore, they are created under strict isolation conditions. In contrast, new approaches…

量子物理 · 物理学 2013-05-29 Christine A. Muschik , Eugene S. Polzik , J. Ignacio Cirac

We propose a scheme to prepare a maximally entangled state for two Lambda-type atoms trapped in separate optical cavities coupled through an optical fiber based on the combined effect of the unitary dynamics and the dissipative process. Our…

量子物理 · 物理学 2015-09-02 Shi-Lei Su , Xiao-Qiang Shao , Qi Guo , Liu-Yong Cheng , Hong-Fu Wang , Shou Zhang

We propose a scheme for generating steady entanglement between two distant atomic qubits in the coupled-cavity system via laser cooling. With suitable choice of the laser frequencies, the target entangled state is the only ground state that…

量子物理 · 物理学 2013-01-04 Li Tuo Shen , Xin Yu Chen , Zhen Biao Yang , Huai Zhi Wu , Shi Biao Zheng

Control over the internal states of trapped ions makes them the ideal system to generate single and two-photon states. Coupling a single ion to an optical cavity enables efficient emission of single photons into a single spatial mode and…

量子物理 · 物理学 2026-01-26 Ian Ford , Adrien Amour , Matthias Keller

A scheme for non-conditional generation of long-living maximally entangled states between two spatially well separated atoms is proposed. In the scheme, $\Lambda$-type atoms pass a resonator-like equipment of dispersing and absorbing…

量子物理 · 物理学 2016-08-16 Özgür Çakir , Ho Trung Dung , Ludwig Knöll , Dirk-Gunnar Welsch

We propose schemes for entanglement concentration and purification for qubit systems encoded in flying atomic pairs. We use a cavity-quantum electrodynamics setting as the paradigmatic scenario within which our proposals can be implemented.…

量子物理 · 物理学 2009-11-13 C. D. Ogden , M. Paternostro , M. S. Kim

A single-particle entangled state can be generated by illuminating a beam splitter with a single photon. Quantum teleportation utilizing such a single-particle entangled state can be successfully achieved with a simple setup consisting only…

量子物理 · 物理学 2009-11-06 Hai-Woong Lee , Jaewan Kim

We propose a scheme able to generate on demand a steady-state entanglement between two non-degenerate cavity modes. The scheme relies on the interaction of the cavity modes with driven two or three-level atoms which act as a coupler to…

量子物理 · 物理学 2015-05-20 Zhao-hong Tang , Gao-xiang Li , Zbigniew Ficek

Spatial states of single photons and spatially entangled photon pairs are becoming an important resource in quantum communication. This additional degree of freedom provides an almost unlimited information capacity, making the development…

量子物理 · 物理学 2017-01-26 E. V. Kovlakov , I. B. Bobrov , S. S. Straupe , S. P. Kulik

In this work we have proposed a scheme for generating $N$ qubit entangled states which can teleport an unknown state perfectly. By switching on the exchange interaction ($J$) between the qubits one can get the desired states periodically. A…

量子物理 · 物理学 2011-06-10 D. D. Bhaktavatsala Rao , Sayantan Ghosh , Prasanta K Panigrahi