Quantum Error Correction by Coding

Details Quantum Error Correction by Coding Quantum Error Correction by Coding

1995-11-03

arxiv.org/abs/quant-ph/9511003v1

Physics

Quantum Physics

11 pages RevTeX + 2 figures in postscript; Please see http://feynman.stanford.edu/qcomp/ for figures.

Scientific paper

Recent progress in quantum cryptography and quantum computers has given hope to their imminent practical realization. An essential element at the heart of the application of these quantum systems is a quantum error correction scheme. We propose a new technique based on the use of coding in order to detect and correct errors due to imperfect transmission lines in quantum cryptography or memories in quantum computers. We give a particular example of how to detect a decohered qubit in order to transmit or preserve with high fidelity the original qubit.

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