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The dynamics of an entangled atomic system in a partial interaction with entangled cavity fields, characterizing an entanglement swapping, have been studied through the use of Von Neuman entropy. We consider the interaction via two-photon…

Quantum Physics · Physics 2015-05-18 Wen-Chao Qiang , W. B. Cardoso , Xin-Hui Zhang

We consider a single Rydberg atom having two degenerate levels interacting with the radiation field in a single-mode ideal cavity. The transition between the levels is carried out by a $\Lambda$-type degenerate two-photon process via a…

atom-ph · Physics 2008-02-03 N. Nayak , S. S. Hassan , T. Biswas

Nonlinear dynamics in the fundamental interaction between a two-level atom with recoil and a quantized radiation field in a high-quality cavity is studied. We consider the strongly coupled atom-field system as a quantum-classical hybrid…

Quantum Physics · Physics 2011-11-09 S. V. Prants

We experimentally investigate the spin dynamics of one and two neutral atoms strongly coupled to a high finesse optical cavity. We observe quantum jumps between hyperfine ground states of a single atom. The interaction-induced normal mode…

Quantum Physics · Physics 2009-09-22 M. Khudaverdyan , W. Alt , T. Kampschulte , S. Reick , A. Thobe , A. Widera , D. Meschede

In this paper, we study the interaction between two two-level atoms and two coupled modes of a quantized radiation field in the form of parametric frequency converter injecting within an optical cavity enclosed by a medium with Kerr…

Quantum Physics · Physics 2015-08-20 H. R. Baghshahi , M. J. Faghihi , M. K. Tavassoly

We examine the dynamics of bipartite entanglement between a two-level atom and the electromagnetic field. We treat the Jaynes-Cummings model with a single field mode and examine in detail the exact time evolution of entanglement, including…

Quantum Physics · Physics 2010-10-04 Nick Cummings , B. L. Hu

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 analyze entanglement generation between a pair of neutral two level atoms that are initially excited in a common electromagnetic vacuum. The nonlocal correlations that appear due to the interaction with the field can become entanglement…

Quantum Physics · Physics 2009-08-03 Juan León , Carlos Sabín

Ultracold atoms coupled to optical cavities offer a powerful platform for studying strongly correlated many-body physics. Here, we propose an experimental scheme for creating biatomic molecules via cavity-enhanced photoassociation from an…

Quantum Gases · Physics 2026-04-17 Yun Chen , Yuqi Wang , Jingjun You , Yingqi Liu , Su Yi , Yuangang Deng

We study the spatial decoherence dynamics for the relative position of two atoms in a singlemode ring cavity. We find that the spatial decoherence of the two atoms depends strongly on their relative position. Taking into account the spatial…

Quantum Physics · Physics 2015-05-20 Li Zheng , Chui-Ping Yang , Franco Nori

We propose the use of ponderomotive forces to entangle the motions of different atoms. Two situations are analyzed: one where the atoms belong to the same optical cavity and interact with the same radiation field mode; the other where each…

Quantum Physics · Physics 2009-11-07 Stefano Mancini , Sougato Bose

We show how to detect and quantify entanglement of atoms in optical lattices in terms of correlations functions of the momentum distribution. These distributions can be measured directly in the experiments. We introduce two kinds of…

Quantum Physics · Physics 2009-11-13 K. G. H. Vollbrecht , J. I. Cirac

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

In this paper, we are interested in studying entropy and dynamics entanglement between a single time dependent three-level atom interacting with one-mode cavity field when the atomic motion is taken into account. An exact analytical…

Quantum Physics · Physics 2022-09-29 Ahmed Salah , M. A. El-Sayed , N. H. Abdel Wahab

To characterize the novel quantum phase transition for a hybrid system consisting of an array of coupled cavities and two-level atoms doped in each cavity, we study the atomic entanglement and photonic visibility in comparison with the…

Quantum Physics · Physics 2009-01-06 M. X. Huo , Ying Li , Z. Song , C. P. Sun

We theoretically study a cavity filled with atoms, which provides the optical-mechanical interaction between the modified cavity photonic field and a movable mirror at one end. We show that the cavity field ``dresses'' these atoms,…

Quantum Physics · Physics 2009-02-16 H. Ian , Z. R. Gong , Yu-xi Liu , C. P. Sun , Franco Nori

It is shown that the system of two three-level atoms in $\Lambda$ configuration in a cavity can evolve to a long-lived maximum entangled state if the Stokes photons vanish from the cavity by means of either leakage or damping. The…

Quantum Physics · Physics 2009-11-07 Ozgur Cakir , M. Ali Can , Alexander Klyachko , Alexander Shumovsky

We studied the interaction of a two-level atom with a frequency modulated cavity mode in an ideal optical cavity. The system, described by a Jaynes-Cumming Hamiltonian, gave rise to a set of stiff nonlinear first order equations solved…

Quantum Physics · Physics 2013-01-22 U. Pishipati , I. Almakremi , Amitabh Joshi , Juan D. Serna

The density matrix equations of motion in near-degenerate three-level V-type closed-loop atomic system are calculated numerically in Floquet frame. The dynamical behavior of atom- photon entanglement between the dressed atom and its…

Atomic and Molecular Clusters · Physics 2015-07-01 Zeinab Kordi , Saeed Ghanbari , Mohammad Mahmoudi

We study the entanglement dynamics between two cavities when one of them is harmonically shaken in the context of quantum information theory. We find four different regimes depending on the frequency of the motion and the spectrum of the…

Quantum Physics · Physics 2020-12-02 Nicolás F. Del Grosso , Fernando C. Lombardo , Paula I. Villar