Sideband-Selective Single-Photon Blockade in Floquet-Modulated Jaynes–Cummings System

Abstract

A circuit quantum electrodynamics (QED) scheme is proposed for generating an on-demand single-photon source with full external engineering in a Floquet-modulated Jaynes–Cummings (JC) system. The photon blockade effect can be induced across multiple Floquet sidebands, enabling the selective generation of a bright single-photon beam at a specific sideband frequency by adjusting the external driving field of the qubit, without requiring modifications to the circuit components. This is of significance for practical applications of integrated micro-nano single quantum devices within a quantum information network.