Abstract
We report the experimental demonstration of a transmission scheme which has the ability to transmit any state of a photonic qubit over unstabilized optical fibres, regardless of whether the qubit is known, unknown, or entangled to other systems. A high fidelity to the noiseless quantum channel was achieved by adding an ancilla photon after the signal photon within the correlation time of the fibre noise and by performing a measurement which computes the parity. Simplicity, the maintenance-free nature and robustness against path-length mismatches among the nodes make our scheme suitable for multi-user quantum communication networks.
Original language | English (US) |
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Article number | 191 |
Journal | New Journal of Physics |
Volume | 9 |
DOIs | |
State | Published - Jun 29 2007 |
All Science Journal Classification (ASJC) codes
- General Physics and Astronomy