Oxford Physicist Unveils Dynamical Quantum Error Correction at Isaac Newton Institute

In a seminar held on November 4, 2025, at the Isaac Newton Institute, Dr. Rajath Radhakrishnan from the University of Oxford presented groundbreaking advances in the field of quantum error correction, focusing on the emerging concept of "dynamical quantum error correcting codes" and their relation to non-invertible symmetries.

Dr. Radhakrishnan outlined how traditional, static quantum error correction relies on a fixed framework of stabilizer codes but faces limitations such as measurement complexity and restricted error detection capabilities. The new dynamical approach replaces this static framework with a flexible sequence of non-commuting measurements, enhancing the robustness and adaptability of error detection in quantum systems. This dynamical structure introduces novel ways to track and correct errors that evolve not only in space but also in time an essential requirement for future scalable quantum computing.

A significant highlight of the talk was the connection established between quantum error correcting measurements and non-invertible symmetries in advanced gauge theories. Dr. Radhakrishnan explained that sequences of quantum measurements could be described as fusions of operators implementing these symmetries, providing a new, topological lens for understanding error correction and the underlying quantum field theories.

The research shows promise for both fault-tolerant quantum computation and deeper insights into mathematical physics, potentially paving the way toward universal error-correcting architectures for next-generation quantum devices.

Reference:

"Dr. Rajath Radhakrishnan | Dynamical quantum error correction and non-invertible symmetries," Isaac Newton Institute Seminar, Nov 4, 2025.