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arXiv · 2108.02219

Skyrmion Qubits: A New Class of Quantum Logic Elements Based on Nanoscale Magnetization

Christina Psaroudaki·Christos Panagopoulos
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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.

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Christina Psaroudaki, Christos Panagopoulos. 2021-08-04. Skyrmion Qubits: A New Class of Quantum Logic Elements Based on Nanoscale Magnetization. https://doi.org/10.1103/physrevlett.127.067201

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