Benchmarking quantum state transfer on quantum devices

Quantum state transfer (QST) provides a method to send arbitrary quantum states from one system another. Such concept is crucial for transmitting information into the memory, processor, and network. The standard benchmark of QST average fidelity between prepared received states. In this work, we provide new which reveals non-classicality based on spatio-temporal steering (STS). More specifically, show that local-hidden-state (LHS) model in STS can be viewed as classical strategy transfer. Therefore, quantify process by measuring steerability. We then apply steerability measurement technique devices including IBM experience QuTech inspire under tasks. experimental results decreases circuit depth increases, reduction agrees with noise model, refers accumulation errors during process. Moreover, quantity estimate signaling effect could result gate or intrinsic non-Markovian devices.