Figure 5
Quantum information transmission rates.
(a) Fidelities F1 and F2 versus the strength fd of the driving force acting on the Duffing oscillator with p0 = 0.6 and τ = 2π/ω0 as the unit of time. (b) Upper bounds of the classical and quantum information transmission rates of different methods for ideal channel with η = 1 versus the number of the user pairs N. (c) and (d) Upper bounds of classical (quantum) information transmission rates of different methods for noisy channel with 0 < η < 1. The correction factor in the q-CDMA network is M = 0.01. FDMA is constrained by the frequency bandwidth δω/ω = 0.2. All the methods are constrained with the total energy 
. 
denote the classical (c) and quantum (q) information transmission rates in q-CDMA and q-FDMA networks with transmissivity η. The rates for the single user-pair channel are 
and 
.
