Design and performance analysis of deterministic iSWAP gate using a resonator as coupler

Sharma, Amit Kumar, Sharma, Ritu

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Publication in Journal of Optical Technology

For Russian citation (Opticheskii Zhurnal):

Amit Kumar Sharma, Ritu Sharma Design and performance analysis of deterministic iSWAP gate using a resonator as coupler (Конструкция и характеристики детерминированного iSWAP-вентиля на основе фотонных кубитов с использованием резонатора в качестве ответвителя) // Оптический журнал. 2021. Т. 88. № 11. С. 72–79. http://doi.org/10.17586/1023-5086-2021-88-11-72-79

Amit Kumar Sharma, Ritu Sharma Design and performance analysis of deterministic iSWAP gate using a resonator as coupler (Конструкция и характеристики детерминированного iSWAP-вентиля на основе фотонных кубитов с использованием резонатора в качестве ответвителя) [in English] // Opticheskii Zhurnal. 2021. V. 88. № 11. P. 72–79. http://doi.org/10.17586/1023-5086-2021-88-11-72-79

For citation (Journal of Optical Technology):

Amit Kumar Sharma and Ritu Sharma, "Design and performance analysis of a deterministic iSWAP gate using a resonator as a coupler," Journal of Optical Technology. 88(11), 666-671 (2021). https://doi.org/10.1364/JOT.88.000666

Abstract:

In this paper quantum process tomography of the designed photonic Qubit based deterministic iSWAP gate has been done and compared with the ideal iSWAP gate.
The gate is designed and simulated using a resonator as a coupler. The performance (fidelity and concurrence) of the designed iSWAP gate has been analytically investigated. The effect of cavity parameters (coupling strength and cavity mode decay rate) on performance of the designed iSWAP gate has been observed. The maximum fidelity 47.06% is obtained at coupling strength 0.02 and cavity mode decay rate 0.0005 and the maximum concurrence 0.474 is obtained at coupling strength 0.02 and cavity mode decay rate 0.
The research search work reported in this paper can be used for further investigation and implementation of quantum information processing systems.

Keywords:

quantum process tomography, micro cavity, quantum gate, quantum dot, linear optics

OCIS codes: 270.0270, 270.5585

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