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quant-ph2026
Shortcuts to adiabaticity in five-level systems using counter-diabatic driving and time-rescaling optimization
Jiahui Zhang, Wenyuan Wang, Fuquan Dou
Shortcuts to adiabaticity (STA) is a common protocol to realize high-fidelity and robust quantum control in various quantum systems. To date, STA has been widely applied in two- an…
quant-ph2026
Theory of anomalous Landau-Zener tunneling induced by nonlinear coupling
Wen-Yuan Wang, Hong-Juan Meng
We develop a general theory of Landau-Zener (LZ) tunneling in a two-level system with amplitude-dependent, sign-reversible nonlinear coupling, distinguishing it fundamentally from…