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Band-gap-engineered spin-phonon, and spin-spin interactions with defect centers in diamond coupled to phononic crystals
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We study a spin-phononic system where diamond defect centers are interfaced with a quasi-one-dimensional phononic crystal. We show that, a single defect center, coupled to the phonon modes of a phononic crystal waveguide near the band gap, can seed its own phononic cavity mode with an exponentially decaying envelope around the defect center's position. The spin-induced phononic cavity, with a greatly reduced and tunable mode volume, allows coherent phonon-mediated interactions between distant spins with a highly tunable range, enabling access to a variety of long-range interacting spin models. This work opens prospects for exploring quantum many-body physics and quantum information processing with defect centers and periodic phononic nanostructures.
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Cited by 2 Pith papers
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Magnetic and phonon-induced effects on the non-Markovian dynamics of a single solid-state defect
For a silicon-vacancy center in diamond, phonon coupling can induce non-Markovian dynamics, with memory effects maximized at resonance and suppressed above about 1.5 K for a structured phonon bath.
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Multi-phonon interactions between nitrogen-vacancy centers and nanomechanical resonators
This theory paper shows that Mollow and Lamb-Dicke sideband engineering can produce strong multi-phonon couplings between an NV center and a nanomechanical resonator, enabling nonclassical phonon state preparation.
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