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We present scheme for generation of entanglement between different modes of radiation field inside high-Q superconducting cavities. Our scheme is based on the interaction of a three-level atom with the cavity field for pre-calculated…

量子物理 · 物理学 2009-11-07 Manzoor Ikram , Farhan Saif

The dynamics of entanglement between two - level atoms interacting with a common squeezed reservoir is investigated. It is shown that for spatially separated atoms there is a unique asymptotic state depending on the distance between the…

量子物理 · 物理学 2013-05-29 L. Jakobczyk , R. Olkiewicz , M. Zaba

The dynamics of two two-level dipole-dipole interacting atoms coupled to a common electromagnetic bath and closely located inside a lossy cavity, is reported. Initially injecting only one excitation in the two atoms-cavity system, loss…

量子物理 · 物理学 2009-11-10 S. Nicolosi , A. Napoli , A. Messina , F. Petruccione

In this paper we consider a system of two two-level atoms interacting with a single-mode quantized electromagnetic field in a lossless resonant cavity via $l$-photon-transition mechanism. The field and the atoms are initially prepared in…

量子物理 · 物理学 2009-11-13 Faisal A. A. El-Orany , Wahiddin M R B , Obada A-S F

Entanglement properties of two uncoupled atoms embedded in a coherent field distribution through one quantum transition process is studied. A case of non-linear Hamiltonian of the problem is considered through which the effect of a…

量子物理 · 物理学 2010-03-16 M. S. Ateto

Atomic collisions are included in an interacting system of optical fields and trapped atoms allowing field amplification. We study the effects of collisions on the system stability. Also a study of the degree of entanglement between atomic…

量子物理 · 物理学 2008-06-17 V. V. França , G. A. Prataviera

The ability to create and harness entanglement is crucial to the fields of quantum sensing and simulation, and ultracold atom-cavity systems offer pristine platforms for this undertaking. Here, we present a method for creating and…

A pair of two level atoms A1A2, prepared either in a separable state or in an entangled state, interacts with a single mode of two mode squeezed cavity field while a third atomic qubit B interacts with the second mode of the squeezed field…

量子物理 · 物理学 2013-05-03 Paulo Jose dos Reis , S. Shelly Sharma , N. K. Sharma

We investigate the behavior of N atoms resonantly coupled to a single electromagnetic field mode sustained by a high quality cavity, containing a mesoscopic coherent field. We show with a simple effective hamiltonian model that the strong…

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 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

We consider the motion of the end mirror of a cavity inside which a two-level atom trapped. The fast vibrating mirror induces nonlinear couplings between the cavity field and the atom. We analyze this optical effect by showing the…

量子物理 · 物理学 2009-06-11 X. X. Yi , H. Y. Sun , L. C. Wang

Atom-field entanglement is shown to play a crucial role for the onset of spatial self-organization of ultracold atoms in an optical lattice within a high-Q cavity. Like particles on a seesaw, the atoms feel a different potential depending…

量子物理 · 物理学 2007-05-23 Christoph Maschler , Helmut Ritsch , Andras Vukics , Peter Domokos

The dynamics of the Jaynes-Cummings interaction of a two-level atom interacting with a single mode of the radiation field is investigated, as the state of the field is gradually changed from a coherent state to a squeezed coherent state.…

量子物理 · 物理学 2012-03-22 T. Subeesh , Vivishek Sudhir , A. B. M. Ahmed , M. Venkata Satyanarayana

We present a scheme to generate maximally entangled states of two three-level atoms with a nonresonant cavity by cavity-assisted collisions. Since the cavity field is only virtually excited no quantum information will be transferred from…

量子物理 · 物理学 2009-11-10 XuBo Zou , K. Pahlke , W. Mathis

We consider a realistic model for the one-atom micromaser consisting of a cavity maintained in a steady state by the streaming of two-level Rydberg atoms passing one at a time through it. We show that it is possible to monitor the robust…

量子物理 · 物理学 2009-11-10 Animesh Datta , Biplab Ghosh , A. S. Majumdar , N. Nayak

We study evolution of entanglement of two two-level atoms placed inside a multilayered microsphere. We show that due to inhomogeneity of the field modes this entanglement essentially depends on the atomic positions (asymmetrical…

量子物理 · 物理学 2009-11-13 G. Burlak , A. Klimov

We consider the dynamics of a system consisting of two two-level atoms interacting with the electromagnetic field near an optical black hole. We obtain the reduced density operator of the two-atom system in the weak coupling regime for the…

量子物理 · 物理学 2018-02-14 Mahnaz Tavakoli , Ehsan Amooghorban

We propose a simple scheme, in which only one atom couples to a cavity field, to entangle two two-level atoms. We connect two atoms with dipole-dipole interaction since one of them can move around the cavity. The results show that the peak…

量子物理 · 物理学 2009-09-29 Yan-Qing Guo , Hai-Jing Cao , He-Shan Song