on 09-10-2026
On October 9th, Instituto de Telecomunicações (IT), Lisbon branch, will host Bruno Coutinho for a seminar on Universal Logical Computation with Quantum LDPC Codes.
Quantum low-density parity-check (qLDPC) codes have attracted renewed interest since Panteleev and Kalachev demonstrated codes with good asymptotic properties in 2021. More recently, IBM proposed finite-size qLDPC codes combining relatively high rates and large distances while remaining compatible with realistic hardware architectures.
However, performing complex logical operations on these codes, including gate teleportation and magic state distillation, remains an open and active area of research.
The seminar will begin with a brief introduction to qLDPC codes and an explanation of why magic states are needed for universal quantum computation. Bruno Coutinho will then present recent progress in this area, focusing on the magic state distillation protocol developed by Shifan Xu and collaborators for the bicycle architecture.
The seminar will conclude with a discussion of major open challenges, particularly the simulation and decoding of the full protocol.
Date: October 9, 2026
Venue: IT Lisbon, 11th-floor seminar room (11:26)
Speaker: Bruno Coutinho - DLR (German Aerospace Center) and our former researcher
Free attendance.