Abstract

Coherent manipulation of quantum states is of crucial importance in accurate control of a quantum system. A fundamental goal is coherently transferring the population of a desired state with near-unit fidelity. For this purpose, we theoretically demonstrate a novel coherent double-stimulated Raman adiabatic passage (STIRAP) in a three-level $\mathrm{\Lambda }$-type system for realizing the switch of unequal initial preparations on two ground states. This operation uses a single optical pulse sequence accomplishing both bright-STIRAP and dark-STIRAP processes, in which the intermediate-level detuning and the pulse delay must be given an optimal adjustment. Besides, owing to the imperfection of double-STIRAP transition, the sensitivity of the switch fidelity with respect to the spontaneous loss from the intermediate state, to the pulse amplitude and to the population difference, is also discussed. This work suggests a simple and experimentally feasible all-optical approach to switch a superposition quantum state, serving as one-step closer to the goal of coherent manipulation of quantum systems.

© 2018 Optical Society of America

Improving the stimulated Raman adiabatic passage via dissipative quantum dynamics

Qi-Cheng Wu, Ye-Hong Chen, Bi-Hua Huang, Jie Song, Yan Xia, and Shi-Biao Zheng
Opt. Express 24(20) 22847-22864 (2016)

Robust stimulated Raman shortcut-to-adiabatic passage with invariant-based optimal control

Xue-Ke Song, Fei Meng, Bao-Jie Liu, Dong Wang, Liu Ye, and Man-Hong Yung
Opt. Express 29(6) 7998-8014 (2021)

Fast optical switching via stimulated Raman adiabatic passage

C. Y. Ye, V. A. Sautenkov, Y. V. Rostovtsev, and M. O. Scully
Opt. Lett. 28(22) 2213-2215 (2003)

Coherence generation and population transfer by stimulated Raman adiabatic passage and π pulse in a four-level ladder system

Bing Zhang, Jin-Hui Wu, Xi-Zhang Yan, Lei Wang, Xiao-Jun Zhang, and Jin-Yue Gao
Opt. Express 19(13) 12000-12007 (2011)

Wideband two-process frequency conversion under stimulated Raman adiabatic passage via a continuum of dark intermediate states

Pragati Aashna and K. Thyagarajan
J. Opt. Soc. Am. B 37(11) 3370-3378 (2020)