Patent ID: 11948047
Assignee: ALMA MATER STUDIORUM—UNIVERSITA' DI BOLOGNA
Field: Basic communication processes (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 7:
8. The system of claim 7, wherein
said transmitter module includes a classical error code correction encoder configured to encode information data (Bk) to obtain encoded error syndromes (Si) which are applied as said error syndromes to the quantum information codewords (|ψ),
said receiver module configured to compute error syndromes (Si;; Ri) from said received codewords (EiPi|ψi) including one or more modules configured to
compute channel affected syndromes (Ri) from the received codewords (EiPi|ψi), and
perform a classical syndrome error correction on said channel affected syndromes (Ri) to obtain classical corrected error syndromes (Si),

an application of a correction operator ({circumflex over (P)}i†,{circumflex over (P)}i†Êi†) obtained at least by said computed syndromes (Si;; Ri) to obtain corrected codewords (|{circumflex over (ψ)}i including
obtaining said correction operator ({circumflex over (P)}i†,{circumflex over (P)}i†Êi†) by
performing an operation of computation of the intentional error ({circumflex over (P)}i) and of a channel error (Êi) of the quantum channel on the basis of said channel affected syndromes (Ri) and said classical corrected error syndromes (Si),
using said computed intentional error ({circumflex over (P)}i) and channel error (Êi) to obtain said correction operator ({circumflex over (P)}i†;{circumflex over (P)}i†Êi†), in particular as inverse of the computed intentional error ({circumflex over (P)}i) and channel error ({right arrow over (E)}i).