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.
Highlights
The application of adiabatic protocols in quantum technologies is severely limited by environmental sources of noise and decoherence
We have provided a realization of shortcuts to adiabaticity based on counterdiabatic driving in a continuous variable system
By demonstrating the robust adiabatic following, we have shown that the resulting time-evolution follows a ‘fast-motion video’ of the adiabatic dynamics
Summary
The application of adiabatic protocols in quantum technologies is severely limited by environmental sources of noise and decoherence. 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. Adiabatic protocols are essential in quantum thermodynamics whether studying quantum fluctuations[9] or the optimization of quantum thermal machines[10,11,12,13] These applications are limited by the requirement of slow driving that conflicts with the feebleness of quantum coherence when the system of interest is embedded in an environment. The excitations during the nonadiabatic transport can be seen in the instantaneous frame through the position-shift transformation eiqðtÞ^p, where we denote
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