Balint Pato

Sep 11, 2024 | link.aps.org | Balint Pato |Theerapat Tansuwannont |Kenneth Brown

A fault-tolerant error correction (FTEC) protocol with a high error suppression rate and low overhead is very desirable for the near-term implementation of quantum computers. In this work, we develop a distance-preserving flag FTEC protocol for the concatenated Steane code, which requires only two ancilla qubits per generator and can be implemented on a planar layout. We generalize the weight-parity error correction (WPEC) technique from Tansuwannont and Leung [Phys. Rev.

May 16, 2024 | link.aps.org | Theerapat Tansuwannont |Shilin Huang |Kenneth Brown |Balint Pato

Popular Summary Flag fault-tolerant quantum error correction (FTQEC) is a method to suppress error rate in quantum computation that uses a small number of ancilla qubits to detect faults in the error-correction protocol. One way to guarantee the number of correctable faults is using a lookup table decoder, but building it requires exhaustive search and may not scale well with the code size.