Lingna Wang

Jan 13, 2025 | nature.com | Qing Li |Lingna Wang |Min Jiang |Haidong Yuan

AbstractPrevious studies in quantum information have recognized that specific types of noise can encode information in certain applications. However, the role of noise in quantum hypothesis testing, traditionally assumed to undermine performance, has not been thoroughly explored. Our study provides sufficient conditions for general noisy dynamics to surpass noiseless (unitary) dynamics within certain time interval.