Atom-by-atom assembly of defect-free one-dimensional cold atom arrays

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 mea...

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Bibliographic Details
Published in:Science (American Association for the Advancement of Science) 2016-11, Vol.354 (6315), p.1024-1027
Main Authors: Endres, Manuel, Bernien, Hannes, Keesling, Alexander, Levine, Harry, Anschuetz, Eric R., Krajenbrink, Alexandre, Senko, Crystal, Vuletic, Vladan, Greiner, Markus, Lukin, Mikhail D.
Format: Article
Language:English
Subjects:
Arrays
Assembly
Atoms & subatomic particles
Cold
Cold atoms
Control systems
Entropy
Information Processing
Probability theory
Quantum phenomena
Scientific Concepts
Simulation
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Summary: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 more than 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.
ISSN:0036-8075
1095-9203
DOI:10.1126/science.aah3752