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Title: Long-range spin wave mediated control of defect qubits in nanodiamonds

Abstract

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.

Authors:
; ; ; ; ; ; ;
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
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)
OSTI Identifier:
1373710
DOE Contract Number:
AC02-06CH11357
Resource Type:
Journal Article
Resource Relation:
Journal Name: npj Quantum Information; Journal Volume: 3; Journal Issue: 1
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; NV centers; Spin qubits; hybrid quantum systems; nanodiamonds; spin waves

Citation Formats

Andrich, Paolo, de las Casas, Charles F., Liu, Xiaoying, Bretscher, Hope L., Berman, Jonson R., Heremans, F. Joseph, Nealey, Paul F., and Awschalom, David D.. Long-range spin wave mediated control of defect qubits in nanodiamonds. United States: N. p., 2017. Web. doi:10.1038/s41534-017-0029-z.
Andrich, Paolo, de las Casas, Charles F., Liu, Xiaoying, Bretscher, Hope L., Berman, Jonson R., Heremans, F. Joseph, Nealey, Paul F., & Awschalom, David D.. Long-range spin wave mediated control of defect qubits in nanodiamonds. United States. doi:10.1038/s41534-017-0029-z.
Andrich, Paolo, de las Casas, Charles F., Liu, Xiaoying, Bretscher, Hope L., Berman, Jonson R., Heremans, F. Joseph, Nealey, Paul F., and Awschalom, David D.. Mon . "Long-range spin wave mediated control of defect qubits in nanodiamonds". United States. doi:10.1038/s41534-017-0029-z.
@article{osti_1373710,
title = {Long-range spin wave mediated control of defect qubits in nanodiamonds},
author = {Andrich, Paolo and de las Casas, Charles F. and Liu, Xiaoying and Bretscher, Hope L. and Berman, Jonson R. and Heremans, F. Joseph and Nealey, Paul F. and Awschalom, David D.},
abstractNote = {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.},
doi = {10.1038/s41534-017-0029-z},
journal = {npj Quantum Information},
number = 1,
volume = 3,
place = {United States},
year = {Mon Jul 17 00:00:00 EDT 2017},
month = {Mon Jul 17 00:00:00 EDT 2017}
}