4 papers
Experimental realization and self-testing of semisymmetric informationally complete measurements via a one-dimensional photonic quantum walk
Xu Xu, Han-Yu Cheng, Meng-Yun Ma +7
Generalized quantum measurements play a crucial role in quantum mechanics, and symmetric informationally complete positive operator-valued measurements (SIC POVMs) provide a powerf…
Demonstration of Discrete-Time Quantum Walks and Observation of Topological Edge States in a Superconducting Qutrit Chain
Kun Zhou, Jian-Wen Xu, Qi-Ping Su +12
Quantum walk serves as a versatile tool for universal quantum computing and algorithmic research. However, the implementation of discrete-time quantum walks (DTQWs) with supercondu…
Implementation and topological characterization of Weyl exceptional rings in quantum-mechanical systems
Hao-Long Zhang, Pei-Rong Han, Xue-Jia Yu +8
Non-Hermiticity can lead to the emergence of many intriguing phenomena that are absent in Hermitian systems, enabled by exceptional topological defects, among which Weyl exceptiona…
Measuring topological invariants for higher-order exceptional points in quantum three-mode systems
Pei-Rong Han, Wen Ning, Xin-Jie Huang +7
Owing to the presence of exceptional points (EPs), non-Hermitian (NH) systems can display intriguing topological phenomena without Hermitian analogs. However, experimental characte…