Two-photon interference between mutually detuned resonance-fluorescence signals scattered off a semiconductor quantum dot

Physical Review A 2026 Open access

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Authors: Guoqi Huang, Jian Wang, Ziqi Zeng, Hanqing Liu, Li Liu, Weijie Ji, Bang Wu, Haiqiao Ni, Zhichuan Niu, Rongzhen Jiao, Davide G. Marangon, Zhiliang Yuan
DOI: 10.1103/b6l5-8fdq
Cited by: 2
References: 34

Abstract

The radiative linewidth of a two-level emitter (TLE) fundamentally limits the bandwidth available for quantum information processing. Despite its importance, no prior experiment has systematically examined how driving detuning affects the indistinguishability of photons scattered from a TLE - a parameter critical for photonic quantum computing. Here, we perform post-selective two-photon interference measurements between mutually detuned resonance fluorescence signals from an InAs quantum dot embedded in a micropillar cavity. At small mutual laser detunings (

Fields of Study & Subjects

Nonlinear Optical Materials Studies Near-Field Optical Microscopy Molecular Junctions and Nanostructures

Publication details

Journal / source
Physical Review A
Publisher
American Physical Society (APS)
Volume
113
Issue
2
Publication date
26 January 2026
Language
EN