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Shortcuts to adiabaticity in the presence of a continuum: applications to itinerant quantum state transfer

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 نشر من قبل Alexandre Baksic
 تاريخ النشر 2017
  مجال البحث فيزياء
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We present a method for accelerating adiabatic protocols for systems involving a coupling to a continuum, one that cancels both non-adiabatic errors as well as errors due to dissipation. We focus on applications to a generic quantum state transfer problem, where the goal is to transfer a state between a single level or mode, and a propagating temporal mode in a waveguide or transmission line. Our approach enables perfect adiabatic transfer protocols in this setup, despite a finite protocol speed and a finite waveguide coupling. Our approach even works in highly constrained settings, where there is only a single time-dependent control field available.



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