Quantum Walks of Correlated Photons 论文
2010Science引用 937
Neural Networks and Reservoir ComputingQuantum Information and CryptographyQuantum Computing Algorithms and Architecture
详细信息
- 发表期刊/会议
- Science
- 发表日期
- 2010-09-16
- 发表年份
- 2010
关键词
Neural Networks and Reservoir ComputingQuantum Information and CryptographyQuantum Computing Algorithms and Architecture
摘要
Quantum walks of correlated particles offer the possibility of studying large-scale quantum interference; simulating biological, chemical, and physical systems; and providing a route to universal quantum computation. We have demonstrated quantum walks of two identical photons in an array of 21 continuously evanescently coupled waveguides in a SiO(x)N(y) chip. We observed quantum correlations, violating a classical limit by 76 standard deviations, and found that the correlations depended critically on the input state of the quantum walk. These results present a powerful approach to achieving quantum walks with correlated particles to encode information in an exponentially larger state space.