Abstract
We report an experimental demonstration of Schumacher's quantum noiseless coding theorem. Our experiment employs a sequence of single photons, each of which represents three qubits in terms of eight spatial and polarization modes. We initially prepare each photon in one of a set of eight nonorthogonal code word states corresponding to the value of a block of three binary letters. We use quantum coding to compress this quantum data into a two-qubit quantum channel and then uncompress the two-qubit channel to restore the original data with a fidelity approaching the theoretical limit.
Original language | English |
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Article number | 217902 |
Number of pages | 4 |
Journal | Physical Review Letters |
Volume | 91 |
Issue number | 21 |
DOIs | |
Publication status | Published - 21 Nov 2003 |