Quantum Error Correction Report
Discover the most comprehensive review of quantum error correction (QEC), the defining challenge for today’s quantum computers. Packed with cutting-edge research, analysis and insights from top industry experts, this three-part report breaks down the complexities of QEC in an accessible way.
Why do quantum computers need error correction?
Today’s quantum computers have high error rates – around one error in every few hundred operations. These errors occur primarily due to the fragile nature of qubits where environmental disturbances and decoherence affect their quantum state.
Once we reduce this error rate to one in a million (referred to as the MegaQuOp regime), truly useful applications will start being unlocked, with larger algorithms requiring one in a billion or even one in a trillion error rates. However, it is unlikely that qubit and/or quantum algorithm improvements alone will be enough to run algorithms with billions of operations reliably. For that, we will need quantum error correction (QEC).
This is incredibly challenging but also an essential technology that needs to be developed before the quantum computing revolution can start.
Why is quantum error correction such a tough challenge to crack?
Scaling quantum computers to millions of qubits requires classical systems capable of processing vast amounts of data—up to 100 terabytes per second.
Quantum error correction is essential for ensuring reliable quantum operations (QuOps) by identifying and correcting qubit errors. This must scale to millions of quantum operations (MegaQuOps) and ultimately trillions (TeraQuOps) for quantum computers to fulfil their vast potential.
Learn more about the scale of the challenge

How are we tackling quantum error correction?

Demonstrating real-time and low-latency quantum error correction with superconducting qubits

A real-time, scalable, fast and highly resource efficient decoder for a quantum computer

Parallel window decoding enables scalable fault tolerant quantum computation

Leakage Mobility in Superconducting Qubits as a Leakage Reduction Unit
We're building the Quantum Error Correction Stack to unlock useful quantum computing
Learn more about Deltaflow: The Quantum Error Correction Stack