Dipole–dipole interaction between trapped two-level ions interacting with a quantized field in the Lamb–Dicke regime

Yazdanpanah, N.; Tavassoly, M. K.

doi:10.1364/josab.33.000382

Cited by 6 publications

(2 citation statements)

References 21 publications

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“…Then, to swap the entanglement to trapped atomic ions (1,4), two separable trapped atomic ions (2,3) are sent to an OMC with one movable mirror (see figure 2(a)), while the initial states of optical and mechanical modes are supposed to be in their vacuum states. In this regard, the interaction between a two-level trapped atomic ion inside a single-mode optical cavity in the Lamb-Dick regime as well as the first vibrational sideband in the rotating wave approximation has been previously introduced [54,55]. Also, a system including a two-level trapped atomic ion interacting with an OMC has been studied in [34].…”

Section: Introductionmentioning

confidence: 99%

Distributing entangled state using quantum repeater protocol: Trapped atomic ions in optomechanical cavities

Ghasemi

Tavassoly

2020

Physics Letters A

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Distribution of the entangled state of trapped atomic ions to long distance using quantum repeater protocol is considered. Indeed, the long distance is divided into short parts, and then using entanglement generation and entanglement swapping techniques in optomechanical cavities, the entanglement is distributed. To do the task, we perform interaction between trapped atomic ions in optomechanical cavities, operate proper measurements on trapped ions and also make Bell state measurement as a well-known way to swap the entanglement. Accordingly, the entanglement is distributed between target ions with satisfactory values of success probability and entanglement degree. The effects of detuning and amplitude of pump laser on the entanglement and success probability are evaluated. The fluctuations of entanglement and success probability are decreased by increasing of detuning. Via increasing the amplitude of pump laser, the maxima of entanglement are repeated more times and success probability undergoes the collapse-revival phenomenon.

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Section: Introductionmentioning

confidence: 99%

Distributing entangled state using quantum repeater protocol: Trapped atomic ions in optomechanical cavities

Ghasemi

Tavassoly

2020

Physics Letters A

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“…[12][13][14][15] It has been found experimentally that, in the presence of DDIs, entanglement is sensitive to the number of trapped ions relative to the distance between them. [16] Zhang et al [17] have reported that the DDIs show similar behavior to a positive detuning and exhibit the opposite role of negative detuning.…”

Section: Introductionmentioning

confidence: 99%

Dipole–dipole interactions enhance non-Markovianity and protect information against dissipation*

Jan

Wang

et al. 2019

Chinese Phys. B

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Preserving non-Markovianity and quantum entanglement from decoherence effect is of theoretical and practical significance in the quantum information processing technologies. In this context, we study a system S that is initially correlated with an ancilla A, which interacts with the environment E via an amplitude damping channel. We also consider dipole-dipole interactions (DDIs) between the system and ancilla, which are responsible for strong correlations. We investigate the impact of DDIs and detuning on the non-Markovianity and information exchange in different environments. We show that DDIs are not only better than detuning at protecting the information (without destroying the memory effect) but also induce memory by causing a transition from Markovian to non-Markovian dynamics. In contrast, although detuning also protects the information, it causes a transition from non-Markovian to the Markovian dynamics. In addition, we demonstrate that the non-Markovianity grows with increasing DDI strength and diminishes with increasing detuning. We also show that the effects of negative detuning and DDIs can cancel out each other, causing a certain loss of coherence and information.

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Dynamics of the interaction between a trapped three-level ion with a two-mode quantized field in the nonlinear regime in the presence of a Kerr medium

Yazdanpanah

Tavassoly

2017

Journal of Modern Optics

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Dipole–dipole interaction between trapped two-level ions interacting with a quantized field in the Lamb–Dicke regime

Cited by 6 publications

References 21 publications

Distributing entangled state using quantum repeater protocol: Trapped atomic ions in optomechanical cavities

Distributing entangled state using quantum repeater protocol: Trapped atomic ions in optomechanical cavities

Dipole–dipole interactions enhance non-Markovianity and protect information against dissipation*

Dynamics of the interaction between a trapped three-level ion with a two-mode quantized field in the nonlinear regime in the presence of a Kerr medium

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