Enhanced strain coupling of nitrogen vacancy spins to nanoscale diamond cantilevers

Abstract

Nitrogen vacancy (NV) centers can couple to confined phonons in diamond mechanical resonators via the effect of lattice strain on their energy levels. Access to the strong spin-phonon coupling regime with this system requires resonators with nanoscale dimensions in order to overcome the weak strain response of the NV ground state spin sublevels. In this work, we study NVs in diamond cantilevers with lateral dimensions of a few hundred nm. Coupling of the NV ground state spin to the mechanical mode is detected in electron spin resonance (ESR), and its temporal dynamics are measured via spin echo. Our small mechanical mode volume leads to a 10-100X enhancement in spin-phonon coupling strength over previous NV-strain coupling demonstrations. This is an important step towards strong spin-phonon coupling, which can enable phonon-mediated quantum information processing and quantum metrology.

References in corpus (8)

• Opto-mechanical transducers for long-distance quantum communication
• Dynamic strain-mediated coupling of a single diamond spin to a mechanical resonator
• Resolved sidebands in a strain-coupled hybrid spin-oscillator system
• Phonon-induced spin-spin interactions in diamond nanostructures: application to spin squeezing
• Low Temperature Studies of Charge Dynamics of Nitrogen-Vacancy Defect in Diamond
• Resolved Sideband Emission of InAs/GaAs Quantum Dots Strained by Surface Acoustic Waves
• Coherent, mechanical control of a single electronic spin
• Continuous dynamical decoupling of a single diamond nitrogen-vacancy center spin with a mechanical resonator

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