W. V. P. de Lima, F. A. B. F. de Moura, D. B. da Fonseca, F. Moraes, A. L. R. Barbosa, G. M. A. Almeida
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引用次数: 0
Abstract
Magnon-based quantum state transfer of a qubit is investigated in a one-dimensional Heisenberg model featuring uncorrelated disorder. In the weak coupling regime with respect to the boundaries of the channel, the presence of an anomalous magnon mode with diverging localization length is harnessed to promote high-fidelity state transfer despite the degree of exchange coupling disorder. Under the additional influence of diagonal disorder due to the external magnetic field, we explore ways to optimize the transfer fidelity by navigating through the disordered landscape so as to identify extended states within the channel. Our results are relevant to the design of magnon-based devices for information processing and communication amid the fast-paced progress in the field of magnonics.
期刊介绍：
Quantum Information Processing is a high-impact, international journal publishing cutting-edge experimental and theoretical research in all areas of Quantum Information Science. Topics of interest include quantum cryptography and communications, entanglement and discord, quantum algorithms, quantum error correction and fault tolerance, quantum computer science, quantum imaging and sensing, and experimental platforms for quantum information. Quantum Information Processing supports and inspires research by providing a comprehensive peer review process, and broadcasting high quality results in a range of formats. These include original papers, letters, broadly focused perspectives, comprehensive review articles, book reviews, and special topical issues. The journal is particularly interested in papers detailing and demonstrating quantum information protocols for cryptography, communications, computation, and sensing.
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