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We present a comprehensive investigation of entanglement dynamics in multi-level V-type atomic systems embedded within photonic crystals. We mainly focus on the synergistic roles of resonant dipole-dipole interactions and quantum…

量子物理 · 物理学 2025-10-08 Nancy Ghangas , Shubhrangshu Dasgupta

We study evolution of entanglement of two two-level atoms in the presence of dissipation caused by spontaneous emission. We find explicit fromulas for the amount of entanglement as a function of time, in the case of destruction of the…

量子物理 · 物理学 2015-06-26 L. Jakobczyk , A. Jamroz

Entanglement is considered to be one of the most profound features of quantum mechanics. An entangled state of a system consisting of two subsystems cannot be described as a product of the quantum states of the two subsystems. In this sense…

量子物理 · 物理学 2009-11-07 Brian Julsgaard , Alexander Kozhekin , Eugene S. Polzik

We study an open quantum system of two qubits that are coupled by swapping interaction. Using the coupling strength between the qubits as a time scale, the Liouvillian of the system has exceptional points that depend on the disparity…

量子物理 · 物理学 2025-08-25 B. A. Tay , Yee Shean H'ng

When a metastable state decays into radiation, there must be entanglement between the radiation and the decaying system, as well as between radiation collected at late and early times. We study the interplay between these two types of…

量子物理 · 物理学 2026-04-13 Sergei Khlebnikov

The maximum entanglement between two coupled qubits in the steady state under two independent incoherent sources of excitation is reported. Asymmetric configurations where one qubit is excited while the other one dissipates the excitation…

量子物理 · 物理学 2011-01-11 Elena del Valle

The dynamical creation of entanglement between three-level atoms coupled to the common vacuum is investigated. For the class of bound entangled initial states we show that the dynamics of closely separated atoms generates stationary…

量子物理 · 物理学 2013-05-29 Łukasz Derkacz , Lech Jakobczyk

Two, non-interacting two-level atoms immersed in a common bath can become mutually entangled when evolving with a Markovian, completely positive dynamics. For an environment made of external quantum fields, this phenomenon can be studied in…

量子物理 · 物理学 2009-11-11 F. Benatti , R. Floreanini

The dynamics of atom-field entanglement for a system composed of two atoms resonantly coupled to a single mode leaky cavity field has been investigated beyond rotating wave approximation (RWA). By using monogamic relation for entanglement…

量子物理 · 物理学 2017-05-23 Ferdi Altintas

The interaction between two $\Xi$-type three-level atoms and a single-mode cavity field in the intensity dependent coupling regime has been studied. Exact analytical solution of the wave function for the considered atoms-field system has…

量子物理 · 物理学 2014-08-14 H R Baghshahi , M K Tavassoly

We analytically study entanglement generation through an open quantum dot system described by the two-lead Anderson model. We exactly obtain the transition rate between the non-entangled incident state in one lead and the outgoing…

介观与纳米尺度物理 · 物理学 2009-05-25 Takashi Imamura , Akinori Nishino , Naomichi Hatano

We show that entanglement of multiple atoms can arise via resonant interaction with a displaced thermal field with a macroscopic photon-number. The cavity field acts as the catalyst, which is disentangled with the atomic system after the…

量子物理 · 物理学 2012-03-08 Shi-Biao Zheng

We classify different classes of entangled states arise in a two-qubit system. Some of these classes are of Bell's state types, while others are of the Werner's state types. The degree of entanglement is quantified for different values of…

量子物理 · 物理学 2011-05-05 F. N. M. Al-Showaikh , N. Metwally , M. Abdel-Aty

We study a single two-level atom interacting with a reservoir of modes defined by its reservoir structure function. Within this framework we are able to define a density of entanglement involving a continuum of reservoir modes. The density…

量子物理 · 物理学 2011-03-23 C. Lazarou , B. M. Garraway , J. Piilo , S. Maniscalco

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 present a review of recent research on quantum entanglement, with special emphasis on entanglement between single atoms, processing of an encoded entanglement and its temporary evolution. Analysis based on the density matrix formalism…

量子物理 · 物理学 2015-05-18 Zbigniew Ficek

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 and interatomic separations. We study two specific atomic…

量子物理 · 物理学 2015-03-19 K. Sinha , N. I. Cummings , B. L. Hu

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…

量子物理 · 物理学 2015-05-13 S. Natali , Z. Ficek

We investigate the dynamics of entanglement between two continuous variable quantum systems. The model system consists of two atoms in a harmonic trap which are interacting by a simplified s-wave scattering. We show, that the dynamically…

量子物理 · 物理学 2009-11-07 Holger Mack , Matthias Freyberger

We consider two ensembles of qubit dissipating into two overlapping environments, that is with a certain number of qubit in common that dissipate into both environments. We then study the dynamics of bipartite entanglement between the two…

量子物理 · 物理学 2015-01-19 Riccardo Mengoni , Laleh Memarzadeh , Stefano Mancini