期刊
PHYSICAL REVIEW LETTERS
卷 120, 期 7, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.120.073001
关键词
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资金
- Army Research Office (ARO)
- Intelligence Advanced Research Projects Activity LogiQ program
- Air Force Office of Scientific Research Multidisciplinary University Research Initiative (MURI) program on Quantum Measurement and Verification
- ARO MURI
- National Science Foundation Physics Frontier Center at Joint Quantum Institute
- Direct For Mathematical & Physical Scien
- Division Of Physics [1430094] Funding Source: National Science Foundation
The local phonon modes in a Coulomb crystal of trapped ions can represent a Hubbard system of coupled bosons. We selectively prepare single excitations at each site and observe free hopping of a boson between sites, mediated by the long-range Coulomb interaction between ions. We then implement phonon blockades on targeted sites by driving a Jaynes-Cummings interaction on individually addressed ions to couple their internal spin to the local phonon mode. The resulting dressed states have energy splittings that can be tuned to suppress phonon hopping into the site. This new experimental approach opens up the possibility of realizing large-scale Hubbard systems from the bottom up with tunable interactions at the single-site level.
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