Work

Fast Quantum Control of Cavities Using an Improved Protocol without Coherent Errors

Year: 2024

Type: article

Abstract: The selective number-dependent arbitrary phase 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.

Source: Physical Review Letters

DOI: 10.1103/physrevlett.133.260802

Authors: Jonas Landgraf, Christa Flühmann, Thomas Fösel, Florian Marquardt, Robert J. Schoelkopf

Institutions: Friedrich-Alexander-Universität Erlangen-Nürnberg, Max Planck Institute for the Science of Light, University of Bayreuth, Yale University

Language: English

Topic: Quantum Information and Cryptography

Subfield: Artificial Intelligence

Field: Computer Science

Domain: Physical Sciences

Open Access status: hybrid

Estimated APC paid: $3,750

Funders: Bayerisches Staatsministerium für Wissenschaft, Forschung und Kunst, Bayerisches Staatsministerium für Wissenschaft und Kunst, Army Research Office