All corrections
X October 15, 2026 at 09:50 AM

x.com/letonyo/status/2110640730637262863

1 correction found

1
Claim
QEC was then invented (toric code by Kitaev)
Correction

This gets the history wrong: quantum error correction predates Kitaev’s toric code. QEC was already introduced in 1995–1996; the toric code is a later 1997 QEC code, not the invention of QEC itself.

Full reasoning

The claim conflates the invention of quantum error correction (QEC) with one later QEC construction, the toric code.

Here is the chronology from primary/official sources:

  1. QEC already existed by 1995. Peter Shor and A. R. Calderbank's paper “Good Quantum Error-Correcting Codes Exist” was submitted on December 30, 1995. The arXiv abstract explicitly defines a quantum error-correcting code, showing the field was already established before 1997.
  2. Kitaev’s toric code came later, in 1997. IBM Quantum’s documentation states that “the toric code … was discovered by Alexei Kitaev in 1997.”

So the toric code is an important example/family of QEC codes, but it is not when QEC was invented. Saying “QEC was then invented (toric code by Kitaev)” reverses that history by roughly two years.

2 sources
Model: OPENAI_GPT_5 Prompt: v1.16.0