Shortcuts to adiabaticity by counterdiabatic driving for trapped-ion displacement in phase space

Shuoming An (), Dingshun Lv, Adolfo del Campo () and Kihwan Kim ()
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Shuoming An: Center for Quantum Information, Institute for Interdisciplinary Information Sciences, Tsinghua University
Dingshun Lv: Center for Quantum Information, Institute for Interdisciplinary Information Sciences, Tsinghua University
Adolfo del Campo: University of Massachusetts
Kihwan Kim: Center for Quantum Information, Institute for Interdisciplinary Information Sciences, Tsinghua University

Nature Communications, 2016, vol. 7, issue 1, 1-5

Abstract: Abstract The application of adiabatic protocols in quantum technologies is severely limited by environmental sources of noise and decoherence. Shortcuts to adiabaticity by counterdiabatic driving constitute a powerful alternative that speed up time-evolution while mimicking adiabatic dynamics. Here we report the experimental implementation of counterdiabatic driving in a continuous variable system, a shortcut to the adiabatic transport of a trapped ion in phase space. The resulting dynamics is equivalent to a ‘fast-motion video’ of the adiabatic trajectory. The robustness of this protocol is shown to surpass that of competing schemes based on classical local controls and Fourier optimization methods. Our results demonstrate that shortcuts to adiabaticity provide a robust speedup of quantum protocols of wide applicability in quantum technologies.

Date: 2016
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DOI: 10.1038/ncomms12999

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