Entanglement increases the error-correcting ability of quantum error-correcting codes

Publisher:
American Physical Society
Publication Type:
Journal article
Citation:
Lai, Ching Yi and Brun, Todd 2013, 'Entanglement increases the error-correcting ability of quantum error-correcting codes', Physical Review A, vol. 88, pp. 012320-1-012320-10.
Issue Date:
2013
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If entanglement is available, the error-correcting ability of quantum codes can be increased. We show how to optimize the minimum distance of an entanglement-assisted quantum error-correcting (EAQEC) code, obtained by adding ebits to a regular quantum stabilizer code, over different encoding operators. By this encoding optimization procedure, we found a number of EAQEC codes, including a family of entanglement-assisted quantum repetition codes and several optimal EAQEC codes.
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