Experimental quantum channel simulation

Authors :: Cheng-Zhi Peng
Nai-Le Liu
Li Li
He Lu
Barry C. Sanders
Luo-Kan Chen
Zheng-Da Li
Jian-Wei Pan
Xing-Can Yao
Dong-Sheng Wang
Chang Liu
Yu-Ao Chen
Source :: Physical Review A. 95
Publication Year :: 2017
Publisher :: American Physical Society (APS), 2017.
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.<br />Comment: This version is very closed to the published version