Long-range spin wave mediated control of defect qubits in nanodiamonds
Hybrid architectures that combine nitrogen-vacancy (NV) centers in diamond with other materials and physical systems have been proposed to enhance the NV center’s capabilities in many quantum sensing and information applications. In particular, spin waves (SWs) in ferromagnetic materials are a promising candidate to implement these platforms due to their strong magnetic fields, which could be used to efficiently interact with the NV centers. Here we develop an yttrium iron garnet-nanodiamond hybrid architecture constructed with the help of directed assembly and transfer printing techniques. Operating at ambient conditions, we demonstrate that surface confined SWs excited in the ferromagnet (FM) can strongly amplify the interactions between a microwave source and the NV centers by enhancing the local microwave magnetic field by several orders of magnitude. Crucially, we show the existence of a regime in which coherent interactions between SWs and NV centers dominate over incoherent mechanisms associated with the broadband magnetic field noise generated by the FM. These accomplishments enable the SW mediated coherent control of spin qubits over distances larger than 200 um, and allow low power operations for future spintronic technologies.
- Research Organization:
- Argonne National Lab. (ANL), Argonne, IL (United States)
- Sponsoring Organization:
- Air Force Research Laboratory (AFRL) - Air Force Office of Scientific Research (AFOSR); USDOE Office of Science - Office of Basic Energy Sciences - Materials Sciences and Engineering Division; US Army Research Office (ARO)
- DOE Contract Number:
- AC02-06CH11357
- OSTI ID:
- 1373710
- Journal Information:
- npj Quantum Information, Vol. 3, Issue 1; ISSN 2056-6387
- Publisher:
- Nature Partner Journals
- Country of Publication:
- United States
- Language:
- English
Similar Records
Magnon-mediated qubit coupling determined via dissipation measurements
All-Optical Cryogenic Thermometry Based on Nitrogen-Vacancy Centers in Nanodiamonds