Alternative fast quantum logic gates using nonadiabatic Landau-Zener-Stückelberg-Majorana transitions
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arXiv
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| Format: | Preprint |
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2023
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| author | Ryzhov, A. I. Ivakhnenko, O. V. Shevchenko, S. N. Gonzalez-Zalba, M. F. Nori, Franco |
| author_facet | Ryzhov, A. I. Ivakhnenko, O. V. Shevchenko, S. N. Gonzalez-Zalba, M. F. Nori, Franco |
| contents | A conventional realization of quantum logic gates and control is based on resonant Rabi oscillations of the occupation probability of the system. This approach has certain limitations and complications, like counter-rotating terms. We study an alternative paradigm for implementing quantum logic gates based on Landau-Zener-Stückelberg-Majorana (LZSM) interferometry with non-resonant driving and the alternation of adiabatic evolution and non-adiabatic transitions. Compared to Rabi oscillations, the main differences are a non-resonant driving frequency and a small number of periods in the external driving. We explore the dynamics of a multilevel quantum system under LZSM drives and optimize the parameters for increasing single- and two-qubit gates speed. We define the parameters of the external driving required for implementing some specific gates using the adiabatic-impulse model. The LZSM approach can be applied to a large variety of multi-level quantum systems and external driving, providing a method for implementing quantum logic gates on them. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2310_17932 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Alternative fast quantum logic gates using nonadiabatic Landau-Zener-Stückelberg-Majorana transitions Ryzhov, A. I. Ivakhnenko, O. V. Shevchenko, S. N. Gonzalez-Zalba, M. F. Nori, Franco Quantum Physics Mesoscale and Nanoscale Physics A conventional realization of quantum logic gates and control is based on resonant Rabi oscillations of the occupation probability of the system. This approach has certain limitations and complications, like counter-rotating terms. We study an alternative paradigm for implementing quantum logic gates based on Landau-Zener-Stückelberg-Majorana (LZSM) interferometry with non-resonant driving and the alternation of adiabatic evolution and non-adiabatic transitions. Compared to Rabi oscillations, the main differences are a non-resonant driving frequency and a small number of periods in the external driving. We explore the dynamics of a multilevel quantum system under LZSM drives and optimize the parameters for increasing single- and two-qubit gates speed. We define the parameters of the external driving required for implementing some specific gates using the adiabatic-impulse model. The LZSM approach can be applied to a large variety of multi-level quantum systems and external driving, providing a method for implementing quantum logic gates on them. |
| title | Alternative fast quantum logic gates using nonadiabatic Landau-Zener-Stückelberg-Majorana transitions |
| topic | Quantum Physics Mesoscale and Nanoscale Physics |
| url | https://arxiv.org/abs/2310.17932 |