Robustness of enhanced shortcuts to adiabaticity in lattice transport

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2022-01-13
Authors
Whitty, Chris
Kiely, A.
Ruschhaupt, Andreas
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American Physical Society
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Abstract
Shortcuts to adiabaticity (STA) are a collection of quantum control techniques that achieve high fidelity outside of the adiabatic regime. Recently an extension to shortcuts to adiabaticity was proposed by the authors [Whitty, Kiely, and Ruschhaupt, Phys. Rev. Research 2, 023360 (2020)2643-156410.1103/PhysRevResearch.2.023360]. This method, enhanced shortcuts to adiabaticity (eSTA), provides an extension to the original STA control functions and allows effective control of systems not amenable to STA methods. It is conjectured that eSTA schemes also enjoy an improved stability over their STA counterparts. We provide numerical evidence of this claim by applying eSTA to fast atomic transport using an optical lattice and evaluating appropriate stability measures. We show that the eSTA schemes not only produce higher fidelities but also remain more stable against errors than the original STA schemes.
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Shortcuts to adiabaticity , STA , Enhanced shortcuts to adiabaticity , eSTA
Citation
Whitty, C., Kiely, A. and Ruschhaupt, A. (2022) 'Robustness of enhanced shortcuts to adiabaticity in lattice transport', Physical Review A, 105(1), 013311 (13pp). doi: 10.1103/PhysRevA.105.013311
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© 2022, American Physical Society.