Dense Coding in Experimental Quantum Communication

Klaus Mattle, Harald Weinfurter, Paul G. Kwiat, and Anton Zeilinger
Phys. Rev. Lett. 76, 4656 – Published 17 June 1996
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Abstract

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” 1.58bit, 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.

  • Received 22 November 1995

DOI:https://doi.org/10.1103/PhysRevLett.76.4656

©1996 American Physical Society

Authors & Affiliations

Klaus Mattle1, Harald Weinfurter1, Paul G. Kwiat1,2, and Anton Zeilinger1

  • 1Institut für Experimentalphysik, Universität Innsbruck, A-6020 Innsbruck, Austria
  • 2Los Alamos National Laboratory, P-23, MS-H803, Los Alamos, New Mexico 87545

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Vol. 76, Iss. 25 — 17 June 1996

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