title: Experimental realization of stimulated Raman shortcut-to-adiabatic passage with cold atoms.
abstract: Accurate control of a quantum system is a fundamental requirement in many areas of modern science ranging from quantum information processing to high-precision measurements. A significantly important goal in quantum control is preparing a desired state as fast as possible, with sufficiently high fidelity allowed by available resources and experimental constraints. Stimulated Raman adiabatic passage (STIRAP) is a robust way to realize high-fidelity state transfer but it requires a sufficiently long operation time to satisfy the adiabatic criteria. Here we theoretically propose and then experimentally demonstrate a shortcut-to-adiabatic protocol to speed-up the STIRAP. By modifying the shapes of the Raman pulses, we experimentally realize a fast and high-fidelity stimulated Raman shortcut-to-adiabatic passage that is robust against control parameter variations. The all-optical, robust and fast protocol demonstrated here provides an efficient and practical way to control quantum systems.
authors: Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials, SPTE, South China Normal University, Guangzhou 510006, China.
authors: Yan-Xiong
authors: YX
authors: Du
authors: Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials, SPTE, South China Normal University, Guangzhou 510006, China.
authors: Zhen-Tao
authors: ZT
authors: Liang
authors: Department of Physics, Shanghai University, Shanghai 200444, China.
authors: Yi-Chao
authors: YC
authors: Li
authors: Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials, SPTE, South China Normal University, Guangzhou 510006, China.
authors: Xian-Xian
authors: XX
authors: Yue
authors: Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials, SPTE, South China Normal University, Guangzhou 510006, China.
authors: Qing-Xian
authors: QX
authors: Lv
authors: Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials, SPTE, South China Normal University, Guangzhou 510006, China.
authors: Wei
authors: W
authors: Huang
authors: Department of Physics, Shanghai University, Shanghai 200444, China.
authors: Xi
authors: X
authors: Chen
authors: Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials, SPTE, South China Normal University, Guangzhou 510006, China.
authors: Hui
authors: H
authors: Yan
authors: Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials, SPTE, South China Normal University, Guangzhou 510006, China.|National Laboratory of Solid State Microstructures, School of Physics, Nanjing University, Nanjing 210093, China.|Synergetic Innovation Center of Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei 230026, China.
authors: Shi-Liang
authors: SL
authors: Zhu