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- W594702068 abstract "Exploring the quantum properties of macroscopic objects has been a core challenge forresearch in physics during the past decades. Proposed systems to reach this goal include hybrid devicesthat couple a nanomechanical resonator to a single qubit. In particular, the implementation of spindependent forces represents a fundamental objective towards the creation of non-classical states ofmotion. In this manuscript, we investigate a hybrid system coupling a nanomechanical oscillator anda single electronic spin of a NV defect in magnetic interaction. We focus on the parametric interactioncase, when the mechanical motion modulates the qubit energy, and in particular when the drivenqubit and mechanical oscillators evolves on similar timescales. In that situation a synchronizationof the qubit dynamics onto the mechanical motion is observed. The phenomenon is first exploredon a test experiment where mechanical motion is replaced by a parametrically coupled RF field.It allows to establish the main properties of the phenomenon, which is subsequently investigatedon the core experiment involving a true hybrid spin-mechanical system. It consists of a NV defectattached at the vibrating extremity of a silicon carbide nanowire, immersed in a strong magneticfield gradient. The spin state is hence coupled to the nanowire vibrations via Zeeman effect. Thebidimensional character of the nanowire deformations is responsible for novel vectorial signatures inthe synchronization mechanism, which can also be viewed as a phononic Mollow triplet as observed inearly quantum electrodynamics experiments. We finally explore the robustness of the synchronizationagainst the Brownian motion of the resonator and demonstrate the possibility to protect the qubitagainst this additional decoherence source by applying a small coherent mechanical drive." @default.
- W594702068 created "2016-06-24" @default.
- W594702068 creator A5062249842 @default.
- W594702068 date "2014-12-15" @default.
- W594702068 modified "2023-09-23" @default.
- W594702068 title "Hybrid spin-nanomechanical systems in parametric interaction" @default.
- W594702068 hasPublicationYear "2014" @default.
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