Pictorial interpretation of quantum-enhanced measurements with wave functions
Yuki Sano, Yasuyuki Ozeki · Journal of the Optical Society of America B · 2021
Quantum-enhanced measurements using squeezed states of light provide sensitivities beyond the shot noise limit. Although the mechanism of quantum enhancement is well described by quantum mechanics, it is difficult to intuitively understand how squeezed states are exploited. In this paper, we present a pictorial interpretation of quantum-enhanced measurements using wave functions, which provides intuitive pictures of squeezed states in various experimental systems.