Atom-by-atom assembly of defect-free one-dimensional cold atom arrays
Abstract
The realization of large-scale fully controllable quantum systems is an exciting frontier in modern physical science. We use atom-by-atom assembly to implement a platform for the deterministic preparation of regular one-dimensional arrays of individually controlled cold atoms. In our approach, a measurement and feedback procedure eliminates the entropy associated with probabilistic trap occupation and results in defect-free arrays of over 50 atoms in less than 400 milliseconds. The technique is based on fast, real-time control of 100 optical tweezers, which we use to arrange atoms in desired geometric patterns and to maintain these configurations by replacing lost atoms with surplus atoms from a reservoir. This bottom-up approach may enable controlled engineering of scalable many-body systems for quantum information processing, quantum simulations, and precision measurements.
Additional Information
© 2016 American Association for the Advancement of Science. Received for publication 17 June 2016. Accepted for publication 17 October 2016. We thank K.-K. Ni, N. Hutzler, A. Mazurenko, and A. Kaufman for insightful discussion. This work was supported by NSF, CUA, NSSEFF, and Harvard Quantum Optics Center. H.B. acknowledges support by a Rubicon Grant of the Netherlands Organization for Scientific Research (NWO). During the completion of this work, we became aware of a related approach (39).Attached Files
Submitted - 1607.03044.pdf
Supplemental Material - Endres-SM.pdf
Supplemental Material - aah3752_Supplementary_Movie_mov1_seq1_v2.mp4
Supplemental Material - aah3752_Supplementary_Movie_mov2_seq2_v2.mp4
Supplemental Material - aah3752_Supplementary_Movie_mov3_seq3_v2.mp4
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Additional details
- Alternative title
- Cold Matter Assembled Atom-by-Atom
- Eprint ID
- 70810
- Resolver ID
- CaltechAUTHORS:20161004-102552364
- NSF
- Harvard-MIT Center for Ultracold Atoms
- National Security Science and Engineering Faculty Fellowship
- Harvard Quantum Optics Center
- Nederlandse Organisatie voor Wetenschappelijk Onderzoek (NWO)
- Created
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2016-10-04Created from EPrint's datestamp field
- Updated
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2021-11-11Created from EPrint's last_modified field
- Caltech groups
- Institute for Quantum Information and Matter