Fast quantum control of cavities using an improved protocol without coherent errors
Quantum Physics
2024-12-02 v2
Abstract
The selective number-dependent arbitrary phase (SNAP) gates form a powerful class of quantum gates, imparting arbitrarily chosen phases to the Fock states of a cavity. However, for short pulses, coherent errors limit the performance. Here we demonstrate in theory and experiment that such errors can be completely suppressed, provided that the pulse times exceed a specific limit. The resulting shorter gate times also reduce incoherent errors. Our approach needs only a small number of frequency components, the resulting pulses can be interpreted easily, and it is compatible with fault-tolerant schemes.
Cite
@article{arxiv.2310.10498,
title = {Fast quantum control of cavities using an improved protocol without coherent errors},
author = {Jonas Landgraf and Christa Flühmann and Thomas Fösel and Florian Marquardt and Robert J. Schoelkopf},
journal= {arXiv preprint arXiv:2310.10498},
year = {2024}
}
Comments
22 pages, 3 figures in the main text, 1 figure in the Appendix