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Bibliographic Details
Main Authors: Landgraf, Jonas, Flühmann, Christa, Fösel, Thomas, Marquardt, Florian, Schoelkopf, Robert J.
Format: Preprint
Published: 2023
Subjects:
Online Access:https://arxiv.org/abs/2310.10498
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Table of Contents:
  • 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.