Generalized Hamiltonian to describe imperfections in ion-light interaction
Quantum Physics
2021-01-04 v1 Applied Physics
Atomic Physics
Abstract
We derive a general Hamiltonian that governs the interaction between an -ion chain and an externally controlled laser field, where the ion motion is quantized and the laser field is considered beyond the plane-wave approximation. This general form not only explicitly includes terms that are used to drive ion-ion entanglement, but also a series of unwanted terms that can lead to quantum gate infidelity. We demonstrate the power of our expressivity of the general Hamiltonian by singling out the effect of axial mode heating and confirm this experimentally. We discuss pathways forward in furthering the trapped-ion quantum computational quality, guiding hardware design decisions.
Keywords
Cite
@article{arxiv.2009.13681,
title = {Generalized Hamiltonian to describe imperfections in ion-light interaction},
author = {Ming Li and Kenneth Wright and Neal C. Pisenti and Kristin M. Beck and Jason H. V. Nguyen and Yunseong Nam},
journal= {arXiv preprint arXiv:2009.13681},
year = {2021}
}