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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Britton, Joseph W. Wall, Michael L. Bohnet, Justin G. Rey, Ana Maria Bollinger, John J. Sawyer, Brian C. Foss-feig, Michael |
| Description | Author Affiliation: Bohnet JG ( National Institute of Standards and Technology (NIST), Boulder, CO 80305, USA. justin.bohnet@nist.gov jjb@nist.gov.); Sawyer BC ( National Institute of Standards and Technology (NIST), Boulder, CO 80305, USA. Georgia Tech Research Institute, Atlanta, GA 30332, USA.); Britton JW ( National Institute of Standards and Technology (NIST), Boulder, CO 80305, USA. Army Research Lab, Adelphi, MD 20783, USA.); Wall ML ( JILA, NIST, and University of Colorado, Boulder, CO 80309, USA.); Rey AM ( JILA, NIST, and Department of Physics, University of Colorado, Boulder, CO 80309, USA.); Foss-Feig M ( Army Research Lab, Adelphi, MD 20783, USA. Joint Quantum Institute and NIST, Gaithersburg, MD 20899, USA.); Bollinger JJ ( National Institute of Standards and Technology (NIST), Boulder, CO 80305, USA. justin.bohnet@nist.gov jjb@nist.gov.) |
| Abstract | Quantum simulation of spin models can provide insight into problems that are difficult or impossible to study with classical computers. Trapped ions are an established platform for quantum simulation, but only systems with fewer than 20 ions have demonstrated quantum correlations. We studied quantum spin dynamics arising from an engineered, homogeneous Ising interaction in a two-dimensional array of (9)Be(+) ions in a Penning trap. We verified entanglement in spin-squeezed states of up to 219 ions, directly observing 4.0 ± 0.9 decibels of spectroscopic enhancement, and observed states with non-Gaussian statistics consistent with oversqueezed states. The good agreement with ab initio theory that includes interactions and decoherence lays the groundwork for simulations of the transverse-field Ising model with variable-range interactions, which are generally intractable with classical methods. |
| ISSN | 00368075 |
| Issue Number | 6291 |
| Journal | Science |
| Volume Number | 352 |
| e-ISSN | 10959203 |
| Language | English |
| Publisher | American Association for the Advancement of Science (United States) |
| Publisher Date | 2016-06-10 |
| Publisher Place | United States |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Multidisciplinary |
| Content Type | Text |
| Resource Type | Article |
| Subject | History and Philosophy of Science |
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