Detection of Quantum Signals Free of Classical Noise via Quantum Correlation
Detection of Quantum Signals Free of Classical Noise via Quantum Correlation
Extracting useful signals is key to both classical and quantum technologies. Conventional noise filtering methods rely on different patterns of signal and noise in frequency or time domains, thus limiting their scope of application, especially in quantum sensing. Here, we propose a signal-nature-based (not signal-pattern-based) approach which singles out a …