Tavis–Cummings Model with Moving Atoms

Abdel‐Khalek, S.; Berrada, K.; Khalil, E. M.; Eleuch, Hichem; Obada, A.‐S. F.; Reda, Esraa

doi:10.3390/e23040452

Cited by 11 publications

(4 citation statements)

References 74 publications

(40 reference statements)

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“…В настоящее время динамика перепутывания кубитов, индуцированного полями резонаторов, исследована для большого числа различных многокубитных моделей типа Джейнса−Каммингса (см. ссылки в [6][7][8][9][10][11]). Использование перепутанных состояний для квантовых вычислений и коммуникаций предполагает необходимость выбора надлежащих мер количественной оценки степени перепутывания кубитов.…”

Section: Introductionunclassified

Перепутывание Изолированного Кубита И Кубита В Резонаторе Со Средой Керра

Башкиров¹

2023

Журнал Технической Физики

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We found the exact solution for a model consisting of two dipole-coupled qubits, one of which is an isolated, and the other interacts with the thermal mode of a cavity with the Kerr medium. The results showed that Kerr nonlinearity may greatly enhance the degree of entanglement induced by a thermal field both for separable and entangled initial states of qubits. We also showed the possibility of the disappearance of the sudden death of entanglement for a model with a Kerr nonlinearity..

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Section: Introductionunclassified

Перепутывание Изолированного Кубита И Кубита В Резонаторе Со Средой Керра

Башкиров¹

2023

Журнал Технической Физики

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“…This bipartite system can theoretically be described by the Jaynes-Cummings model (J-CM) [31]. Various generalizations of J-CM have lately been introduced and examined [32][33][34][35][36][37]. Based on the above aforementioned, we present in this manuscript the examination of physical phenomena and illustrate the convenable conditions for different applications of quantum technology.…”

Section: Introductionmentioning

confidence: 99%

Classical and quantum correlations between two qubits interacting with a field in thermal spin states

Algarni¹,

Abdel‐Khalek²,

Berrada³

2023

Laser Phys. Lett.

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In this manuscript, we introduce a quantum physical model consisting of two-atom system that interact with a quantized field initially prepared in the thermal spin states (TSSs). We study the effect of the main parameters of the model on the dynamical behavior atom–atom coherence, atoms-field entanglement, atom–atom entanglement and classical correlation. We show how the quantumness measures can be influenced by the spin number and thermal noise in the absence and presence of time-dependent coupling effect. We obtain that, despite the destructive influence of thermal noise, a considerable amount of coherence, entanglement and classical correlation still remain during the time evolution according the values of spin number. The results also show that the TSSs can offer the advantage of generating the maximal amount of coherence, entanglement and classical correlation during the dynamics.

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“…This is due to the fact that to generate and control the entangled states of natural and artificial two-level atoms (qubits), such as superconducting rings with Josephson junctions, ions in magnetic traps, impurity spins, etc., electromagnetic fields of resonators are usually used [3][4][5]. At present, the dynamics of qubit entanglement induced by resonator fields has been studied for a large number of different Jaynes−Cummingstype multi-qubit models (see references in [6][7][8][9][10][11]). The use of entangled states for quantum computing and communications suggests the need to choose appropriate measures to quantify the degree of qubit entanglement.…”

Section: Introductionmentioning

confidence: 99%