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Title: Skyrmion qubits : a new class of quantum logic elements based on nanoscale magnetization
Authors: Psaroudaki, Christina
Panagopoulos, Christos
Keywords: Science::Physics
Issue Date: 2021
Source: Psaroudaki, C. & Panagopoulos, C. (2021). Skyrmion qubits : a new class of quantum logic elements based on nanoscale magnetization. Physical Review Letters, 127(6), 067201-.
Project: NRFNRFI2015-04
Journal: Physical Review Letters
Abstract: We introduce a new class of primitive building blocks for realizing quantum logic elements based on nanoscale magnetization textures called skyrmions. In a skyrmion qubit, information is stored in the quantum degree of helicity, and the logical states can be adjusted by electric and magnetic fields, offering a rich operation regime with high anharmonicity. By exploring a large parameter space, we propose two skyrmion qubit variants depending on their quantized state. We discuss appropriate microwave pulses required to generate single-qubit gates for quantum computing, and skyrmion multiqubit schemes for a scalable architecture with tailored couplings. Scalability, controllability by microwave fields, operation time scales, and readout by nonvolatile techniques converge to make the skyrmion qubit highly attractive as a logical element of a quantum processor.
ISSN: 0031-9007
DOI: 10.1103/PhysRevLett.127.067201
Schools: School of Physical and Mathematical Sciences 
Rights: © 2021 American Physical Society. All rights reserved. This paper was published in Physical Review Letters and is made available with permission of American Physical Society.
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:SPMS Journal Articles

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