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Rotation gates with controlled adiabatic evolutions in open systems

Benmachiche, Abderrahim and Bahloul, Derradji and Mahmoud Ahmed, Gharib Subhi and Messikh Azeddine, Azeddine (2018) Rotation gates with controlled adiabatic evolutions in open systems. Open Systems & Information Dynamics, 25 (3). pp. 1850013-1. ISSN 1230-1612

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Abstract

Single quantum rotation gates can be perfectly implemented in a closed system using the controlled adiabatic evolutions process proposed by Itay Hen that may lead to build some quantum circuit blocks [Phys. Rev. A, 022309 (2015)]. These adiabatic evolutions yield to vanishing geometric phases. In this work, we extended Itay’s work by considering a more realistic model where the qubits are subjected to decoherence effects during the adiabatic evolution process. We demonstrate that, in the case of an open system, the decoherence leads to nonvanishing geometric phases and drastically reduces the performance of the quantum rotation gates bellow the fidelity target (0.999).

Item Type: Article (Journal)
Additional Information: 5541/69170
Uncontrolled Keywords: Single quantum rotation gates; controlled adiabatic evolutions; geometric phases; open system; decoherence.
Subjects: Q Science > QC Physics
Kulliyyahs/Centres/Divisions/Institutes: Kulliyyah of Engineering
Kulliyyah of Engineering > Department of Science
Kulliyyah of Information and Communication Technology
Kulliyyah of Information and Communication Technology

Kulliyyah of Information and Communication Technology > Department of Computer Science
Kulliyyah of Information and Communication Technology > Department of Computer Science
Depositing User: Dr Azeddine Messikh
Date Deposited: 15 Jan 2019 15:54
Last Modified: 30 Jan 2019 10:27
URI: http://irep.iium.edu.my/id/eprint/69170

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