Experimental quantum channel simulation
He Lu, Chang Liu, Dong-Sheng Wang, Luo-Kan Chen, Zheng-Da Li, Xing-Can, Yao, Li Li, Nai-Le Liu, Cheng-Zhi Peng, Barry C. Sanders, Yu-Ao Chen and, Jian-Wei Pan
TL;DR
This paper presents an experimental quantum channel simulator capable of imitating a wide range of quantum systems using a minimal set of quantum gates, advancing the field of quantum information processing.
Contribution
It introduces a novel quantum channel simulation algorithm and demonstrates its implementation on a simple quantum device, enabling simulation of diverse quantum channels.
Findings
Successfully simulated quantum-noise channels
Implemented weak quantum measurement channels
Demonstrated versatility of the simulator
Abstract
Quantum simulation is of great importance in quantum information science. Here, we report an experimental quantum channel simulator imbued with an algorithm for imitating the behavior of a general class of quantum systems. The reported quantum channel simulator consists of four single-qubit gates and one controlled-NOT gate. All types of quantum channels can be decomposed by the algorithm and implemented on this device. We deploy our system to simulate various quantum channels, such as quantum-noise channels and weak quantum measurement. Our results advance experimental quantum channel simulation, which is integral to the goal of quantum information processing.
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