Shortcut- Enhanced Quantum Thermodynamics Publication 1

14 Sep 2022

Emanated from research supported in part by a Grant from Science Foundation Ireland under Grant number 19/FFP/6951 (“Shortcut- Enhanced Quantum Thermodynamics”), our paper on "Improved anharmonic trap expansion through enhanced shortcuts to adiabaticity“ has been published in the memorial issue of Journal of Physics B: Atomic, Molecular and Optical Physics on "Coherent Control: Photons, Atoms and Molecules", honouring the life and work of Bruce W. Shore (C. Whitty, A. Kiely and A. Ruschhaupt, "Improved anharmonic trap expansion through enhanced shortcuts to adiabaticity“, J. Phys. B: At. Mol. Opt. Phys. 55 (2022) 194003).

Shortcuts to adiabaticity (STA) have been successfully applied both theoretically and experimentally to a wide variety of quantum control tasks. In previous work we have developed an analytic extension to STA, called enhanced shortcuts to adiabaticity (eSTA), that extends STA methods to systems where STA cannot be applied directly (2020 Phys. Rev. Res. 2 023360). In this paper, we generalize this approach and construct an alternative eSTA method that takes advantage of higher order terms. We apply this eSTA method to the expansion of both a Gaussian trap and accordion lattice potential, demonstrating the improved fidelity and robustness of eSTA.