High-fidelity single logical qubit encoding scheme assisted by single-sided quantum dot-cavity systems

• DOI: 10.1364/ol.516989
• Publication Date: 2024-04-15T10:00:15Z
• Authors: Xiao-Ming Xiu; Xin-Ying Wang; Si-Tong Liu; Liu Lv; Zi-Lin Zhao; Zi-Qing Yuan; Zi-Long Yang; Yan-Qiang Ji; Li Dong
• Keywords: Reflection; Single shot; High fidelity

We present an encoding scheme of a single logical qubit with single-sided quantum dot (QD)-cavity systems, which is immune to the collective decoherence. By adjusting Purcell factor satisfy balanced reflection condition, detrimental effects unbalanced between coupled and uncoupled QD-cavity systems can be effectively suppressed. Furthermore, fidelity each step increased unity regardless strong coupling regime weak cavity electrodynamics (QED) assistance waveform correctors. The requires simple linear optical elements, implemented currently experimental techniques.