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PreprintarXiv licencearXiv

Spin-force from a Nitrogen-Vacancy ensemble drives a 100 mg levitated resonator

  • Anshuman Nayak
  • Daehee Kim
  • Shilu Tian
  • Jason Twamley
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Abstract

The force experienced by a spin in a magnetic field gradient underlies many proposals for hybrid quantum systems. These include schemes for mechanically mediated quantum gates, spin squeezing, searches for exotic forces, and motional superpositions for probing the interface between quantum and gravity. Yet, experimentally observing this spin-force for anything larger than atomic scales has proved challenging. In our work, we demonstrate controllable Center-of-Mass motion of a 128 mg diamagnetically levitated oscillator due to force from an ensemble of Nitrogen-Vacancy (NV) defects in diamond. We induce coherent motion in the oscillator by periodic optical initialisation of the NV spin states, achieving motional amplitudes exceeding 100 nm. Our results mark a key milestone towards spin-based engineering of motional states deep in the high-mass regime.

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Cite

BibTeXRIS
BibTeX
@misc{nayak2026spinforce,
  title = {{Spin-force from a Nitrogen-Vacancy ensemble drives a 100 mg levitated resonator}},
  author = {Anshuman Nayak and Daehee Kim and Shilu Tian and Jason Twamley},
  howpublished = {arXiv},
  year = {2026},
  month = may,
  doi = {10.48550/arxiv.2605.17750},
  eprint = {2605.17750},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2605.17750},
}
RIS
TY  - UNPB
TI  - Spin-force from a Nitrogen-Vacancy ensemble drives a 100 mg levitated resonator
AU  - Anshuman Nayak
AU  - Daehee Kim
AU  - Shilu Tian
AU  - Jason Twamley
PY  - 2026
DA  - 2026/05/18
PB  - arXiv
DO  - 10.48550/arxiv.2605.17750
UR  - https://arxiv.org/abs/2605.17750
AB  - The force experienced by a spin in a magnetic field gradient underlies many proposals for hybrid quantum systems. These include schemes for mechanically mediated quantum gates, spin squeezing, searches for exotic forces, and motional superpositions for probing the interface between quantum and gravity. Yet, experimentally observing this spin-force for anything larger than atomic scales has proved challenging. In our work, we demonstrate controllable Center-of-Mass motion of a 128 mg diamagnetically levitated oscillator due to force from an ensemble of Nitrogen-Vacancy (NV) defects in diamond. We induce coherent motion in the oscillator by periodic optical initialisation of the NV spin states, achieving motional amplitudes exceeding 100 nm. Our results mark a key milestone towards spin-based engineering of motional states deep in the high-mass regime.
ER  -