Fig. 5: The circuit of our noiseless state recovery protocol.
From: Simulating non-completely positive actions via exponentiation of Hermitian-preserving maps
The Hamiltonian is set to be \({H}_{{{\mathcal{E}}}^{-1}}={\Lambda }_{{{\mathcal{E}}}^{-1}}^{{{\rm{T}}}_{1}}\), the partial transposition of the Choi matrix of the inverse map \({{\mathcal{E}}}^{-1}\). The evolved state σ serves as a guiding state which needs to have a high fidelity with the noiseless state ψ.
