Erasure cooling, control, and hyperentanglement of motion in optical tweezers
Creators
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1.
California Institute of Technology
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2.
Stanford University
Abstract
Coherently controlling the motion of single atoms in optical tweezers would enable new applications in quantum information science. To demonstrate this, we first prepared atoms in their motional ground state using a species-agnostic cooling mechanism that converts motional excitations into erasures, errors with a known location. This cooling mechanism fundamentally outperforms idealized traditional sideband cooling, which we experimentally demonstrated. By coherently manipulating the resultant pure motional state, we performed mid-circuit readout and mid-circuit erasure detection through local shelving into motional superposition states. We lastly entangled the motion of two atoms in separate tweezers and generated hyperentanglement by preparing a simultaneous Bell state of motional and optical qubits, unlocking a large class of quantum operations with neutral atoms.
Copyright and License
© 2025 the authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original US government works. https://www.science.org/content/page/science-licenses-journal-article-reuse.
Acknowledgement
We acknowledge insightful discussions with and comments from H. Levine, J. Zeiher, D. Barredo, A. Jadbabaie, and X. Sun.
Funding
We acknowledge support from the Army Research Office MURI program (W911NF2010136); the NSF QLCI program (2016245); the Institute for Quantum Information and Matter, an NSF Physics Frontiers Center (NSF grant PHY-1733907); the DARPA ONISQ program (W911NF2010021); the US Department of Energy, Office of Science, National Quantum Information Science Research Centers, Quantum Systems Accelerator; and the NSF CAREER award (1753386). P.S. acknowledges support from the IQIM postdoctoral fellowship. R.F. acknowledges support from the Troesh postdoctoral fellowship. R.B.-S.T. acknowledges support from the Taiwan-Caltech Fellowship.
Supplemental Material
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science.adn2618_sm.pdf
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Additional details
Related works
- Is new version of
- Discussion Paper: arXiv:2311.15580 (arXiv)
- Is supplemented by
- Supplemental Material: https://www.science.org/doi/suppl/10.1126/science.adn2618/suppl_file/science.adn2618_sm.pdf (URL)
- Dataset: 10.5061/dryad.w9ghx3g18 (DOI)
Funding
- United States Army Research Office
- W911NF2010136
- National Science Foundation
- 2016245
- National Science Foundation
- PHY-1733907
- Defense Advanced Research Projects Agency
- W911NF2010021
- United States Department of Energy
- National Science Foundation
- PHY-1753386
- California Institute of Technology
- Troesh Postdoctoral Fellowship -
- Ministry of Education
- Taiwan-Caltech Fellowship -
Dates
- Accepted
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2025-03-31