Noise-Resistant Optimal Spin Squeezing via Quantum Control

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Noise-Resistant Optimal Spin Squeezing via Quantum Control

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Title: Noise-Resistant Optimal Spin Squeezing via Quantum Control
Author: Caneva, T.; Montangero, S.; Lukin, Mikhail D.; Calarco, Tommaso

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Citation: Pichler, T., T. Cavena, S. Montangero, M.D. Lukin, and T. Calarco. 2016. Noise-resistant optimal spin squeezing via quantum control. Physical Review A 93 (1): 013851-013857.
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Abstract: Entangled atomic states, such as spin squeezed states, represent a promising resource for a new generation of quantum sensors and atomic clocks. We demonstrate that optimal control techniques can be used to substantially enhance the degree of spin squeezing in strongly interacting many-body systems, even in the presence of noise and imperfections. Specifically, we present a time-optimal protocol that yields more than two orders of magnitude improvement with respect to conventional adiabatic preparation. Potential experimental implementations are discussed.
Published Version: doi: 10.1103/PhysRevA.93.013851
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