Two-photon Rabi splitting in a coupled system of a nanocavity and exciton complexes

Qian, C. et al. (2018) Two-photon Rabi splitting in a coupled system of a nanocavity and exciton complexes. Physical Review Letters, 120(21), 213901. (doi: 10.1103/PhysRevLett.120.213901) (PMID:29883144)

Abstract

Two-photon Rabi splitting in a cavity-dot system provides a basis for multiqubit coherent control in a quantum photonic network. Here we report on two-photon Rabi splitting in a strongly coupled cavity-dot system. The quantum dot was grown intentionally large in size for a large oscillation strength and small biexciton binding energy. Both exciton and biexciton transitions couple to a high-quality-factor photonic crystal cavity with large coupling strengths over 130 μeV. Furthermore, the small binding energy enables the cavity to simultaneously couple with two exciton states. Thereby, two-photon Rabi splitting between the biexciton and cavity is achieved, which can be well reproduced by theoretical calculations with quantum master equations.

• Item Type: Articles
• Additional Information: Supported by National Basic Research Program of China under Grant No. 2014CB921003; the National Natural Science Foundation of China under Grants No. 11721404, No. 51761145104, and No. 61675228; and the Strategic Priority Research Program of the Chinese Academy of Sciences under Grants No. XDB07030200 and No. XDPB0803, and the CAS Interdisciplinary Innovation Team.
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Steer, Dr Matthew and Thayne, Prof Iain
• Authors: Qian, C., Wu, S., Song, F., Peng, K., Xie, X., Yang, J., Xiao, S., Steer, M. J., Thayne, I. G., Tang, C., Zuo, Z., Jin, K., Gu, C., and Xu, X.
• College/School: College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering
• Journal Name: Physical Review Letters
• Publisher: American Physical Society
• ISSN: 0031-9007
• ISSN (Online): 1079-7114
• Copyright Holders: Copyright © 2018 American Physical Society
• First Published: First published in Physical Review Letters 120(21):213901
• Publisher Policy: Reproduced in accordance with the copyright policy of the publisher