Correlated errors in quantum-error corrections

Won Young Hwang, Doyeol Ahn, Sung Woo Hwang

Research output: Contribution to journalArticlepeer-review


We show that errors are not generated correlatedly provided that quantum bits do not directly interact with (or couple to) each other. Generally, this no-qubit-interaction condition is assumed except for the case where two-qubit gate operation is being performed. In particular, the no-qubit-interaction condition is satisfied in the collective decoherence models. Thus, errors are not correlated in the collective decoherence. Consequently, we can say that current quantum error correcting codes that correct single-qubit errors will work in most cases including the collective decoherence.

Original languageEnglish
Article number022303
Pages (from-to)1-3
Number of pages3
JournalPhysical Review A - Atomic, Molecular, and Optical Physics
Issue number2
StatePublished - 2001


Dive into the research topics of 'Correlated errors in quantum-error corrections'. Together they form a unique fingerprint.

Cite this