Journal
PHYSICAL REVIEW LETTERS
Volume 110, Issue 15, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.110.156402
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Funding
- NSF
- CUA
- DARPA
- NSERC
- HQOC
- DOE
- Packard Foundation
- EU project AQUTE
- Austrian Science Fund (FWF) through SFB FOQUS
- Austrian Science Fund (FWF) through START Grant [Y 591-N16]
- Direct For Mathematical & Physical Scien
- Division Of Physics [969816] Funding Source: National Science Foundation
- Division Of Physics
- Direct For Mathematical & Physical Scien [1125846] Funding Source: National Science Foundation
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We propose and analyze a novel mechanism for long-range spin-spin interactions in diamond nanostructures. The interactions between electronic spins, associated with nitrogen-vacancy centers in diamond, are mediated by their coupling via strain to the vibrational mode of a diamond mechanical nanoresonator. This coupling results in phonon-mediated effective spin-spin interactions that can be used to generate squeezed states of a spin ensemble. We show that spin dephasing and relaxation can be largely suppressed, allowing for substantial spin squeezing under realistic experimental conditions. Our approach has implications for spin-ensemble magnetometry, as well as phonon-mediated quantum information processing with spin qubits. DOI: 10.1103/PhysRevLett.110.156402
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