Journal
QUANTUM SCIENCE AND TECHNOLOGY
Volume 6, Issue 2, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/2058-9565/abd5ca
Keywords
coherent control; quantum state transfer; shortcut to adiabaticity; superconducting qubit
Funding
- Natural Science Foundation of Guangdong Province [2017B030308003]
- Key R & D Program of Guangdong province [2018B030326001]
- Science, Technology and Innovation Commission of Shenzhen Municipality [JCYJ20170412152620376, JCYJ20170817105046702, KYTDPT20181011104202253]
- National Natural Science Foundation of China [11875160, U1801661]
- Economy, Trade and Information Commission of Shenzhen Municipality [201901161512]
- Guangdong Provincial Key Laboratory [2019B121203002]
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STIRUP is a faster and more robust quantum state control method compared to STIRAP, capable of combatting decoherence and experimental imperfections. Generalized STIRUP is simpler and compatible with more complex energy-level structures and many-body systems compared to other techniques.
Stimulated Raman adiabatic passage (STIRAP) is a standard technique to combat experimental imperfections and can be used to realize robust quantum state control, which has many applications in physics, chemistry, and beyond. However, STIRAP is susceptible to decoherence since it requires long evolution time. To overcome this problem, stimulated Raman 'user-defined' passage (STIRUP) is proposed, which allows users to design the passages unlike the STIRAP but fast and robust against both decoherence and experimental imperfections. Here, we further develop a more general STIRUP method. Comparing with shortcut to adiabaticity and its' variants, the generalized STIRUP is more simpler and compatible with more complex energy-level structure and many-body systems. Furthermore, the generalized STIRUP has many important applications such as geometric phase measurement, coherent population transfer, and quantum state preparation. Specifically, as examples, we show how to realize the high-fidelity quantum state transfer and entangled state generation in a robust way via STIRUP with the state-of-the-art experimental superconducting circuits.
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