Approaching five-bit NMR quantum computing

R. Marx, A. F. Fahmy, John M. Myers, W. Bermel, S. J. Glaser

Research output: Contribution to journalArticlepeer-review

1 Scopus citations


Nuclear-magnetic-resonance (NMR) quantum computation is a fruitful arena in which to develop and demonstrate an enhanced capability for quantum control over molecular systems, regardless of the prospects, which may be limited, for building a quantum computer superior to a conventional computer for any computing task. We demonstrate a five-bit NMR quantum computer that distinguishes among various functions on four bits, making use of quantum parallelism, an example of the Deutsch-Jozsa problem. Its construction draws on the recognition of the sufficiency of linear coupling along a chain of nuclear spins, the synthesis of a suitably coupled molecule containing four distinct nuclear species, and the use of a multichannel spectrometer. Radio-frequency pulse sequences are described to execute controlled-NOT gates on two adjoining spins while leaving the other three spins essentially unaffected.

Original languageEnglish
Pages (from-to)8
Number of pages1
JournalPhysical Review A
Issue number1
StatePublished - 2000


Dive into the research topics of 'Approaching five-bit NMR quantum computing'. Together they form a unique fingerprint.

Cite this