Photonic entanglement-assisted quantum low-density parity-check encoders and decoders

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Abstract

I propose encoder and decoder architectures for entanglement-assisted (EA) quantum low-density paritycheck (LDPC) codes suitable for all-optical implementation. I show that two basic gates needed for EA quantum error correction, namely, controlled-NOT (CNOT) and Hadamard gates can be implemented based on Mach-Zehnder interferometer. In addition, I show that EA quantum LDPC codes from balanced incomplete block designs of unitary index require only one entanglement qubit to be shared between source and destination.

Original languageEnglish (US)
Pages (from-to)1464-1466
Number of pages3
JournalOptics Letters
Volume35
Issue number9
DOIs
Publication statusPublished - May 1 2010

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ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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