Untitled

El-Orany, Faisal A. A.

doi:10.1023/a:1021122131199

Cited by 15 publications

(24 citation statements)

References 53 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In some sense the behavior of Fig. 7(b) is quite similar to that of the JCM [28]. Information about the off-resonance case is shown in Fig.…”

Section: Variance Squeezingsupporting

confidence: 57%

“…(Ĵ − ,Ĵ + ,Ĵ z ) −→ (â,â † ,â †â ). We exploit this fact to use the linear entropy for quantifying the entanglement between the s and j systems [27,28]. It is worth mentioning that such type of entanglement is completely different from that discussed in [14], where the authors have studied the entanglement between two central atoms after tracing over the variables of the surroundings.…”

Section: Variance Squeezingmentioning

confidence: 99%

“…Now, we start the discussion with the s − j entanglement. For this purpose we write down the definition of the linear entropy as [27,28]:…”

Section: Variance Squeezingmentioning

confidence: 99%

See 2 more Smart Citations

Variance squeezing and entanglement of theXXcentral spin model

El-Orany¹,

Abdalla²

2010

J. Phys. A: Math. Theor.

View full text Add to dashboard Cite

In this paper, we study the quantum properties for a system that consists of a central atom interacting with surrounding spins through the Heisenberg XX couplings of equal strength. Employing the Heisenberg equations of motion we manage to derive an exact solution for the dynamical operators. We consider that the central atom and its surroundings are initially prepared in the excited state and in the coherent spin state, respectively. For this system, we investigate the evolution of variance squeezing and entanglement. The nonclassical effects have been remarked in the behavior of all components of the system. The atomic variance can exhibit revivalcollapse phenomenon based on the value of the detuning parameter.

show abstract

“…In some sense the behavior of Fig. 7(b) is quite similar to that of the JCM [28]. Information about the off-resonance case is shown in Fig.…”

Section: Variance Squeezingsupporting

confidence: 57%

Section: Variance Squeezingmentioning

confidence: 99%

See 1 more Smart Citation

Variance squeezing and entanglement of theXXcentral spin model

El-Orany¹,

Abdalla²

2010

J. Phys. A: Math. Theor.

View full text Add to dashboard Cite

show abstract

“…On the other hand, the phase distribution of the odd-case is quite different as we have shown before where the initial peaks are not significantly changing as in the even-case. More precisely, initial distribution becomes broader for a while and suddenly (at r ≃ 0.5) breaks off to start to be a narrower distribution for later r. It is clear that in this regime the state (1) becomes more and more nonclassical [15] and the even-and odd-cases are distinguishable. Further, the phase distribution of the even-case is more sensitive with respect to squeezing than the odd-case.…”

Section: A Phase Probability Distributionmentioning

confidence: 92%

Phase properties of the superposition of squeezed and displaced number states

El-Orany¹,

Peřina²,

Abdalla³

2000

J. Opt. B: Quantum Semiclass. Opt.

View full text Add to dashboard Cite

show abstract

“…The problem of creating or controlling the atomic entanglement is greatly related to the atomic coherence of population between different levels. The authors of papers [14]- [18] have shown that the entanglement between two atoms induced by one-mode or two-mode thermal field can be manipulated by changing the initial parameters of the atoms, such as the superposition coefficients and the relative phases of the initial atomic coherent state and the mean photon number of the cavity field. They have also discovered that entanglement may be greatly enhanced due to dipole-dipole interaction in the presence of the atomic coherence [17].…”

Section: Introductionmentioning

confidence: 99%

Entanglement between two qubits induced by thermal field

Bashkirov

Mastyugin

2016

J. Phys.: Conf. Ser.

View full text Add to dashboard Cite

In this paper, we have investigated the entanglement between two dipole coupled two-level atoms. The model, in which only one atom is trapped in an lossless cavity and interacts with single-mode thermal field, and the other one can be spatially moved freely outside the cavity has been carried out. We have considered the effect of the atomic coherence on the entanglement behavior. We have shown that a thermal field might cause high entanglement between the atoms both for coherent and incoherent initial atomic states only for small values of the cavity mean photon number. In the considered model the atoms would get entangled even when both atoms are initially in the excited state. We have also derived that the degree of entanglement is weakly dependent on the strength of dipole-dipole interaction for coherent initial states.

show abstract

Untitled

Cited by 15 publications

References 53 publications

Variance squeezing and entanglement of theXXcentral spin model

Variance squeezing and entanglement of theXXcentral spin model

Phase properties of the superposition of squeezed and displaced number states

Entanglement between two qubits induced by thermal field

Contact Info

Product

Resources

About