Seonglae ChoQuantum Computing Error
Quantum Error Correction Methods
Threshold
Quantum Computers Cross Critical Error Threshold | Quanta Magazine
In a first, researchers have shown that adding more “qubits” to a quantum computer can make it more resilient. It’s an essential step on the long road to practical applications.
https://www.quantamagazine.org/quantum-computers-cross-critical-error-threshold-20241209
Google claims breakthrough in quantum computer error correction
Company’s latest research could signal a step towards overcoming one hurdle to the technology
https://www.ft.com/content/9e04ff7d-f56a-4d5f-a4fa-849336abf659
The Azure Quantum team has proposed a 4D geometry-based error correction code that can be used across various hardware types (neutrons, ions, chips). They estimate that it can reduce the error rate from 0.1% per 1,000 physical qubits to 0.0001% for logical qubits. Microsoft and their partner Atom Computing are developing a first-generation device with 1,200 physical qubits, with plans to upgrade to 10,000 qubits, which would enable experiments with hundreds of logical qubits.
arxiv.org
https://arxiv.org/pdf/2506.15130
Tracking quantum computer progress should focus on quantum error correction and scaling improvements, not just factorization
Why haven't quantum computers factored 21 yet?
Craig Gidney's computer science blog
https://algassert.com/post/2500