METHOD FOR CORRECTING ERROR OF IMPERFECT ENTANGLED QUBIT IN RECEIVER

摘要

Provided is an EA-CWS quantum error correction code for correcting an error on imperfect entangled qubits, and a method for correcting an error using entangled qubits snared between a sender and a receiver includes, after an encoding process to send the entangled qubits, performing an operation of a Pauli error on different stabilizer generators of an EA-CWS code, converting an error occurring on the sender or the receiver to en error correction code in a correctable error form as a result of the operation, and correcting the error on entangled qubits occurring at the side of the sender or the receiver by generating a word operator of a CWS code using the converted error correction code.

主权项

1. A method for correcting an error using entangled qubits (ebits) shared between a sender and a receiver, comprising:
the sender correcting an error occurring on a channel using an entanglement-assisted codeword stabilized quantum (EA-CWS) code; and the receiver correcting an error occurring on received entangled qubits (ebits) using a stabilizer code, wherein two error correction codes of the EA-CWS code and the stabilizer code are combined to generate a combination code.