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In spin-based architectures of quantum devices, the hyperfine interaction between the electron spin qubit and the nuclear spin environment remains one of the main sources of decoherence. This paper provides a short review of the current…

量子物理 · 物理学 2023-03-15 Tymoteusz Salamon , Marcin Płodzień , Maciej Lewenstein , Katarzyna Roszak

The entanglement of two atoms is studied when the two atoms are coupled to a single-mode thermal field with different couplings. The different couplings of two atoms are in favor of entanglement preparation: it not only makes the case of…

量子物理 · 物理学 2009-11-10 L. Zhou , X. X. Yi , H. S. Song , Y. Q. Guo

We study the temporal evolution of entanglement pertaining to two qubits interacting with a thermal bath. In particular we consider the simplest nontrivial spin bath models where symmetry breaking occurs and treat them by mean field…

量子物理 · 物理学 2009-11-10 Marco Lucamarini , Simone Paganelli , Stefano Mancini

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

We study quantum entanglement loss due to environmental interaction in a condensed matter system with a complex geometry relevant to recent proposals for computing with single electrons at the nanoscale. We consider a system consisting of…

量子物理 · 物理学 2018-05-04 Enrique P. Blair , Geza Toth , Craig S. Lent

We investigate the interaction of two two-level atoms with a single mode cavity field. One of the atoms is exactly at resonance with the field, while the other is well far from resonance and hence is treated in the dispersive limit. We find…

量子物理 · 物理学 2016-06-09 J. A. Roversi , A. Vidiella-Barranco , H. Moya-Cessa

Using the algebraic dynamical method, the dynamics of entanglement in an atom-field bipartite system in a mixed state is investigated. The atomic center-ofmass motion and the field-mode structure are also included in this system. We find…

量子物理 · 物理学 2010-07-01 Lei Tan , Zhong-Hua Zhu , Yu-Qing Zhang

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 study the entanglement properties of two three-level Rydberg atoms passing through a single-mode cavity. The interaction of an atom with the cavity field allows the atom to make a transition from the upper most (lower most) to the lower…

量子物理 · 物理学 2007-08-07 Biplab Ghosh , A. S. Majumdar , N. Nayak

The dynamics of a cascaded system that consists of two atom-cavity subsystems is studied by using the quantum trajectory method. Unwanted losses are included, such as photon absorption and scattering by the cavity mirrors and spontaneous…

量子物理 · 物理学 2009-08-12 Christian Di Fidio , Werner Vogel

We treat two identical and mutually independent two-level atoms that are coupled to a quantum field as an open quantum system. The master equation that governs their evolution is derived by tracing over the degree of freedom of the field.…

高能物理 - 理论 · 物理学 2024-08-30 Xiaobao Liu , Zehua Tian , Jiliang Jing

We investigate the entanglement dynamics and coherence of two two-level atoms interacting with two coherent fields of two spatially separated and dissipative cavities. It is in particular shown that entanglement sudden death is obtained…

量子物理 · 物理学 2015-05-14 Jian-Song Zhang , Ai-Xi Chen , M. Abdel-Aty

We study the entanglement between two identical two-level atoms located near an ideal model of invisibility cloaks, by monitoring the the time evolution of the concurrence measure. We obtain the reduced density operator of the atomic…

量子物理 · 物理学 2017-08-09 Ehsan Amooghorban , Elnaz Aleebrahim

Dynamics of entanglement due to intensity-dependent interaction between a two-level atom and a single-mode electromagnetic field in a Kerr medium is studied. The form of the interaction is such that the Hamiltonian evolution is exactly…

量子物理 · 物理学 2009-07-20 A B M Ahmed , S Sivakumar

A system, comprised of a qubit pair coupled to a common cavity, is studied with the aim of establishing qubit entanglement. This study is the sequel of the paper Phys. Rev. A 111, 043705 (2025), where similar model was investigated for an…

量子物理 · 物理学 2026-03-24 Amit Dey

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 · 物理学 2008-02-03 N. Nayak , S. S. Hassan , T. Biswas

The dynamics of few two-level atoms interacting with one cavity mode is described in master equation formalism. Two different configurations are considered: a transient one with all atoms initially in the excited state and a stationary one…

光学 · 物理学 2013-11-18 Paolo Schwendimann , Antonio Quattropani

The dynamics of entanglement and quantum discord for qubit-qutrit systems are studied in the presence of phase damping and amplitude damping noises. Both one way and two couplings of the marginal systems with the environments are…

量子物理 · 物理学 2016-12-22 Salman Khan , Ishaq Ahmad

We investigate the dynamical behavior of entanglement in a system made by two solid-state emitters, as two quantum dots, embedded in two separated micro-cavities. In these solid-state systems, in addition to the coupling with the cavity…

Two non-directly interacting qubits with equal frequencies can become entangled via a Markovian, dissipative dynamics through the action of a weakly coupled Ohmic heat bath. In the standard weak-coupling limit derivation, this purely…

量子物理 · 物理学 2010-02-23 F. Benatti , R. Floreanini , U. Marzolino