Demonstration of long-range correlations via susceptibility measurements in a one-dimensional superconducting Josephson spin chain

Autor:	D. M. Tennant, X. Dai, A. J. Martinez, R. Trappen, D. Melanson, M. A. Yurtalan, Y. Tang, S. Bedkihal, R. Yang, S. Novikov, J. A. Grover, S. M. Disseler, J. I. Basham, R. Das, D. K. Kim, A. J. Melville, B. M. Niedzielski, S. J. Weber, J. L. Yoder, A. J. Kerman, E. Mozgunov, D. A. Lidar, A. Lupascu
Rok vydání:	2021
Předmět:	Quantum Physics Computational Theory and Mathematics Computer Networks and Communications Computer Science (miscellaneous) FOS: Physical sciences Statistical and Nonlinear Physics Quantum Physics (quant-ph)
DOI:	10.48550/arxiv.2111.04284
Popis:	Spin chains have long been considered an effective medium for long-range interactions, entanglement generation, and quantum state transfer. In this work, we explore the properties of a spin chain implemented with superconducting flux circuits, designed to act as a connectivity medium between two superconducting qubits. The susceptibility of the chain is probed and shown to support long-range, cross chain correlations. In addition, interactions between the two end qubits, mediated by the coupler chain, are demonstrated. This work has direct applicability in near term quantum annealing processors as a means of generating long-range, coherent coupling between qubits. Comment: 25 pages, 14 figures
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b7f27fae356e75ca2a0669820e71ce25 Zobrazit plný text záznamu