Preprint
Magnon-mediated qubit coupling determined via dissipation measurements
ArXiv.org
08/22/2023
DOI: 10.48550/arxiv.2308.11710
Abstract
Controlled interaction between localized and delocalized solid-state spin systems offers a compelling platform for on-chip quantum information processing with quantum spintronics. Hybrid quantum systems (HQSs) of localized nitrogen-vacancy (NV) centers in diamond and delocalized magnon modes in ferrimagnets-systems with naturally commensurate energies-have recently attracted significant attention, especially for interconnecting isolated spin qubits at length-scales far beyond those set by the dipolar coupling. However, despite extensive theoretical efforts, there is a lack of experimental characterization of the magnon-mediated interaction between NV centers, which is necessary to develop such hybrid quantum architectures. Here, we experimentally determine the magnon-mediated NV-NV coupling from the magnon-induced self-energy of NV centers. Our results are quantitatively consistent with a model in which the NV center is coupled to magnons by dipolar interactions. This work provides a versatile tool to characterize HQSs in the absence of strong coupling, informing future efforts to engineer entangled solid-state systems.
Details
- Title: Subtitle
- Magnon-mediated qubit coupling determined via dissipation measurements
- Creators
- Masaya FukamiJonathan C MarcksDenis R CandidoLeah R WeissBenjamin SolowaySean E SullivanNazar DeleganF. Joseph HeremansMichael E FlattéDavid D Awschalom
- Resource Type
- Preprint
- Publication Details
- ArXiv.org
- DOI
- 10.48550/arxiv.2308.11710
- ISSN
- 2331-8422
- Language
- English
- Date posted
- 08/22/2023
- Academic Unit
- Electrical and Computer Engineering; Physics and Astronomy
- Record Identifier
- 9984455948002771
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