Optimal Signal-to-Quantum Noise Ratio for Nonclassical Number States
Feng, Y, Solomon, A I · CERN Document Server (European Organization for Nuclear Research) · 1997
We analyze the properties of nonclassical number states, specifically squeezed number states D(a)S(z)|n >, and find their maximum signal-to-quantum noise ratio. It is shown that the optimal signal-to-quantum noise ratio for these states decreases as 1/(2n+1)2, where n is the photon number, from the optimal value as derived by Yuen.