Dense coding in experimental quantum communication

Klaus Mattle, Harald Weinfurter, Paul G. Kwiat, Anton Zeilinger

Research output: Contribution to journalArticlepeer-review


Classically, sending more than one bit of information requires manipulation of more than one two-state particle. We demonstrate experimentally that one can transmit one of three messages, i.e., 1 “trit” ≈1.58 bit, by manipulating only one of two entangled particles. The increased channel capacity is proven by transmitting ASCII characters in five trits instead of the usual 8 bits.

Original languageEnglish (US)
Pages (from-to)4656-4659
Number of pages4
JournalPhysical review letters
Issue number25
StatePublished - 1996
Externally publishedYes

ASJC Scopus subject areas

  • General Physics and Astronomy


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