Fault-tolerant conversion between stabilizer codes by Clifford operations

Understand

We propose a scheme that converts a stabilizer code into another stabilizer code in a fault tolerant manner.

• The scheme first puts both codes in specific forms, and proceeds the conversion from a source code to a target code by applying Clifford gates.
• The Clifford gates are chosen from the comparisons between both codes.
• The fault tolerance of the conversion is guaranteed by quantum error correction in every step during the entire conversion process.