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arXiv · 1902.03354

Bang-bang shortcut to adiabaticity in the Dicke model as realized in a Penning trap experiment

J. Cohn·A. Safavi-Naini·R. J. Lewis-Swan·J. G. Bohnet·M. Garttner·K. A. Gilmore·E. Jordan·A. M. Rey·J. J. Bollinger·J. K. Freericks
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Abstract

We introduce a bang-bang shortcut to adiabaticity for the Dicke model, which we implement via a 2-D array of trapped ions in a Penning trap with a spin-dependent force detuned close to the center-of-mass drumhead mode. Our focus is on employing this shortcut to create highly entangled states that can be used in high-precision metrology. We highlight that the performance of the bang-bang approach is comparable to standard preparation methods, but can be applied over a much shorter time frame. We compare these theoretical ideas with experimental data which serve as a first step towards realizing this theoretical procedure for generating multi-partite entanglement.

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J. Cohn, A. Safavi-Naini, R. J. Lewis-Swan, J. G. Bohnet, M. Garttner, K. A. Gilmore, E. Jordan, A. M. Rey, J. J. Bollinger, J. K. Freericks. 2019-02-09. Bang-bang shortcut to adiabaticity in the Dicke model as realized in a Penning trap experiment. https://doi.org/10.1088/1367-2630/aac3fa

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