Quantum three-box paradox: a proposal for atom optics implementation

Imran, Muhammad; Islam, Rameez-ul; Saeed, Muhammad Haroon; Ikram, Manzoor

doi:10.1007/s11128-021-03091-3

Cited by 5 publications

(3 citation statements)

References 86 publications

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“…The results show that the environment of the mechanical oscillator does not necessarily negatively affect cooling. If the environment has non-Markovian memory effects, the entanglement is preserved and mechanical cooling is optimized [22,24].…”

Section: Evidence For Non-markovian Behaviormentioning

confidence: 99%

“…Various quantum correlations, like entanglement and mutual information, find many applications in quantum information processing jobs containing quantum teleportation, quantum cryptography, quantum computing, quantum error correction, and quantum communication [15][16][17][18][19][20][21][22][23][24]. An OM atom-cavity system is a candidate for generating and maintaining quantum correlations [25,26].…”

Section: Introductionmentioning

confidence: 99%

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Enhancing entanglement and non-Markovianity in an optomechanical system via atom quasi-random walk motion

Mohammadi,

Jami,

Khazaei Nezhad

2023

Opt Quant Electron

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Optomechanical cavities are one of the most important systems for observing quantum phenomena. In this paper, we investigated the quantum aspect of an optomechanical system made up of a two-level atom under two laser pump stimulation. One of the laser pumps drives the optical cavity, known as a longitudinal pump, while the second laser was used to excite the atom inside the cavity, directly and called as transverse pump. We observe the quasi-random walk of atom inside the cavity. Next, entanglement evolution among the atomic states and the other parts of the system with the von Neumann entropy measure was investigated. The study was done for distinctive atomic states in a strong coupling regime between the atom and field of cavity. Also, we investigated the evidence for non-Markovian behavior with trace distance measure. Our results demonstrate that the random walk of the atom can offer assistance to us to upgrade the entanglement between the inside atom mode and the other parts of the system for a long time.Furthermore, adding atomic motion provides evidence for the non-Markovian treatment of the system at the initial time.

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Section: Evidence For Non-markovian Behaviormentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Enhancing entanglement and non-Markovianity in an optomechanical system via atom quasi-random walk motion

Mohammadi,

Jami,

Khazaei Nezhad

2023

Opt Quant Electron

View full text Add to dashboard Cite

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“…[18,[41][42][43][44][45][46][47][48][49][50][51][52][53] In this regard, the Bragg's regime atom optics utilizing the quantized momenta states of the atoms have also been employed to handle most of the quantum informatics themes such as state engineering, [18,54,55] state measurement [56] and teleportation [57,58] as well as the quantum foundational issues. [59][60][61][62][63][64][65] This is because quantized external momenta states of neutral atoms are decoherence resistant and have been declared as the fittest states under Quantum Darwinism. [66] Thus, such states furnish us with the more time for state manipulation and preparation and hence provide a viable solution to the most stringent and lethal problem of quantum processing.…”

Section: Introductionmentioning

confidence: 99%

Cavity‐Assisted Atomic External Momenta State Teleportation

Ali,

Ahmad,

Rameez‐ul‐Islam

et al. 2023

Annalen der Physik

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The quantized momentum eigenstates of neutral atoms offer high resistance to decoherence and thus suggests a viable alternative for quantum informatics tasks including teleportation. In this work, a scheme is suggested to teleport an unknown superposition of two distinct external momentum states of a neutral atom onto the similar momentum states of a distant atom at the receiving end through the off‐resonant atomic Bragg diffraction (ABD). In order to teleport this unknown state from the sender, that is, Alice, to the receiver, that is, Bob, a pre‐existing entangled link formed through a high‐Q cavity at Alice's end and momentum states of a neutral atom at the Bob's end are utilized. Further, while citing the realistic experimental parameters, it is demonstrated that the proposal can easily be implemented experimentally under the prevailing cavity‐QED atom‐field research scenario. The proposal is also generalized to cover the teleportation of the multipartite entangled momenta states and the case of multipartite GHZ entangled states is elucidated in details. However, the procedure is generic and can be extended to cover the teleportation schematics for any arbitrary atomic momenta states.

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