Fault-tolerant Operations for Universal Blind Quantum Computation

Understand

Blind quantum computation is an appealing use of quantum information technology because it can conceal both the client's data and the algorithm itself from the server.

• However, problems need to be solved in the practical use of blind quantum computation and fault-tolerance is a major challenge.
• On an example circuit, the computational cost measured in T gates executed by the client is 97 times more than performing the original computation directly, without using the server, even before applying error correction.
• (The client still benefits due to drastically reduced memory requirements.) Broadbent et al.