A Coherence Preservation Control Strategy in Cavity QED Based on Classical Quantum Feedback

Figure 6

The error of each component of the reconstructed density matrix. (a) The error of 𝜌₁₁. (b) The error of 𝜌₁₂. (c) The error of 𝜌₂₁. (d) The error of 𝜌₂₂.

(a)

(b)

(c)

(d)