Can a universal quantum cloner be used to design an experimentally feasible near-deterministic CNOT gate?

Gueddana, Amor; Gholami, Peyman; Lakshminarayanan, Vasudevan

doi:10.1007/s11128-019-2339-x

Cited by 16 publications

(8 citation statements)

References 35 publications

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“…Concurrence is calculated using Eq. ( 42) and plotted with varying cavity parameters and shown in which is not heralded by spin measurement and provides fidelity of 83% [20][21]. The performance of entanglement generator circuit proposed in this paper can be further improved using the compact CNOT gate model.…”

Section: Resultsmentioning

confidence: 99%

Entanglement generation for non-local photonic Qubits using quantum dot within the optical micro-cavity

Sharma

2022

Preprint

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This paper presents the analytical inquisition of photonic entanglement generation circuit (PEGC) for non local Qubits designed using quantum dot within the optical micro-cavity, considering practical environment. It is established that the concurrence of the PEGC is considerably contingent on the interplay between spin of quantum dot and photon within the optical micro-cavity. The maximum concurrence obtained is 61.24 at \(g/k=.3\) and \({k}_{s}/k=0.1\) and 90.11 at \(g/k=4\) and \({k}_{s}/k=0.1\) with and without noisy environment, respectively. Different quantum cryptography-based protocols may be implemented using reported work.

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Section: Resultsmentioning

confidence: 99%

Entanglement generation for non-local photonic Qubits using quantum dot within the optical micro-cavity

Sharma

2022

Preprint

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“…Revealed from the simple mathematical result in Eq. S12, we conjecture that the theoretical concepts of ACI can be potentially generalized to numerous scenarios in noisy and lossy linear systems (e.g., atmospheric imaging [38][39][40][41], bioimaging [68], deep-learning based imaging [69], structured-light illumination [59], tomography [70], time-domain spectroscopy [42,43], free space optical communications [44][45][46][47], PT symmetric non-Hermitian photonics [48,49], and quantum computing [41,50,51],…”

Section: Discussionmentioning

confidence: 99%

“…This study strengthens, from a mathematical perspective, the previous results and associated assertions [33,34] made with numerical simulations. We conjecture that the theory of ACI can be potentially generalized to a wide variety of noisy and lossy linear systems including, for example, those in atmospheric imaging [38][39][40][41], time-domain spectroscopy [42,43], optical communications [44][45][46][47], PT symmetric non-Hermitian photonics [48,49], and even quantum computing [41,50,51].…”

Section: Introductionmentioning

confidence: 99%

Theory of coherent active convolved illumination for superresolution enhancement

Ghoshroy,

Adams,

Guney

2019

Preprint

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Recently an optical amplification process called the plasmon injection scheme was introduced as an effective solution to overcoming losses in metamaterials. Implementations with near-field imaging applications have indicated substantial performance enhancements even in the presence of noise. This powerful and versatile compensation technique, which has since been renamed to a more generalized active convolved illumination, offers new possibilities of improving the performance of many previously conceived metamaterial-based devices and conventional imaging systems. In this work, we present the first comprehensive mathematical breakdown of active convolved illumination for coherent imaging. Our analysis highlights the distinctive features of active convolved illumination, such as selective spectral amplification and correlations, and provides a rigorous understanding of the loss compensation process. Beyond enhanced superresolution imaging, the theory can be potentially generalized to the compensation of information or photon loss in a wide variety of coherent and incoherent linear systems including those, for example, in atmospheric imaging, time-domain spectroscopy, PT symmetric non-Hermitian photonics, and even quantum computing.

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“…This scheme is teleporting spin qubits by taking the help of photonic qubits [14]. Amor Gueddana et al (2019) proposed a QD cavity unit-based model to realize a photonic CNOT gate using quantum cloner. For this scheme, electron spin measurements and ancillary Qubits are not required.…”

Section: Introductionmentioning

confidence: 99%

“…For this scheme, electron spin measurements and ancillary Qubits are not required. This is not heralded scheme, so practically; fidelity will increase [15]. Min-Sung Kang et al (2020) proposed a deterministic Fredkin gate using a QD cavity unit, which can perform a controlled swap operation between three Qubits.…”

Section: Introductionmentioning

confidence: 99%

Performance analysis of all optical-based quantum internet circuits

Sharma

2022

J Comput Electron

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A Quantum dot implanted within double-sided optical microcavity is explained and established as a critical component for all optical-based quantum internets. Due to the duality as the photonic quantum transistor and gate, the QD cavity system presents a sturdy base for the future photonic quantum network. With the help of the analytical investigation and review presented in this paper, a quantum dot cavity unit can be developed for implementing deterministic quantum gates and transistors. The maximum fidelity observed for quantum diode, router, and storage is 95.24%, 62.06%, and 90.42% without considering a noisy environment, respectively, and 62.12%, 60.36%, and 43.66% under a noisy environment, respectively. Fidelity is also calculated with varying coupling conditions (strong and weak coupling), and optimized cavity parameters are calculated. The paper also reports the work done by various researchers till date.

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Can a universal quantum cloner be used to design an experimentally feasible near-deterministic CNOT gate?

Cited by 16 publications

References 35 publications

Entanglement generation for non-local photonic Qubits using quantum dot within the optical micro-cavity

Entanglement generation for non-local photonic Qubits using quantum dot within the optical micro-cavity

Theory of coherent active convolved illumination for superresolution enhancement

Performance analysis of all optical-based quantum internet circuits

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