Quantum technologies are steadily moving beyond purely laboratory-based demonstrations toward systems with practical relevance, promising to solve some complex problems more efficiently than classical computing, such as factoring large numbers in cryptography. However, the quantum revolution is progressing gradually, with the current Noisy Intermediate-Scale Quantum (NISQ) era serving as an important stepping stone toward fully fault-tolerant quantum computing (FTQC). At present, the inherent noise and limited scale of NISQ devices fundamentally constrain their reliability and scalability, constituting a significant barrier to the wider practical use of quantum computing.
The NISQEC project addresses this challenge by developing quantum error correction (QEC) methods for protecting quantum information in the NISQ era. The project is deliberately grounded in realistic assumptions about near-term quantum hardware. It focuses on QEC techniques that can operate effectively with fewer than 1,000 qubits or under limited entanglement resources. By analyzing concrete noise models, finite-blocklength codes, and practical decoding strategies, NISQEC aims to clarify which approaches can provide meaningful improvements in reliability under realistic resource constraints.
By advancing our understanding of the fundamental limits of quantum error correction in the NISQ era, NISQEC helps clarify how quantum technologies can be made more reliable in practice. The project supports the long-term development of scalable quantum systems while remaining closely aligned with the capabilities and limitations of today’s quantum hardware. All results will be shared openly through publications, conferences, and international collaboration.





