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Peer-reviewedCC BY-NCScience Advances

Spin force from a nitrogen-vacancy ensemble drives a 100-mg levitated resonator

  • Anshuman Nayak1
  • Daehee Kim1
  • Shilu Tian1,2
  • Jason Twamley1
  1. 1Quantum Machines Unit, Okinawa Institute of Science and Technology Graduate University Onna, Okinawa 904-0495, Japan.
  2. 2Department of Physics, Institute of Science Tokyo, Tokyo 152-8551, Japan.
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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-milligram 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 initialization of the NV spin states, achieving motional amplitudes exceeding 100 nanometers. Our results mark a key milestone toward spin-based engineering of motional states deep in the high-mass regime.

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Cite

BibTeXRIS
BibTeX
@article{nayak2026spin,
  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},
  journal = {Science Advances},
  year = {2026},
  month = oct,
  doi = {10.1126/sciadv.aeh0566},
  url = {https://www.science.org/doi/10.1126/sciadv.aeh0566},
  note = {CC BY-NC},
}
RIS
TY  - JOUR
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  - 2026/10/09
JO  - Science Advances
DO  - 10.1126/sciadv.aeh0566
UR  - https://www.science.org/doi/10.1126/sciadv.aeh0566
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-milligram 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 initialization of the NV spin states, achieving motional amplitudes exceeding 100 nanometers. Our results mark a key milestone toward spin-based engineering of motional states deep in the high-mass regime.
SN  - 2375-2548
ER  -