Deterministic unitary operations on time-bin qudits for quantum communication

Details Deterministic unitary operations on time-bin qudits for quantum communication Deterministic unitary operations on time-bin qudits for quantum communication

2006-08-23

arxiv.org/abs/quant-ph/0608183v2

Physics

Quantum Physics

4 pages, 5 figures. One figure replaced

Scientific paper

We show for the first time how deterministic unitary operations on time-bin qubits encoded in single photon pulses can be realized using fiber optics components that are available with current technology. We also generalize this result to operations on time-bin qudits, i.e. $d$-level systems, and show that this can be done efficiently using 2$\times$2 beamsplitters and phase modulators. Important benefits for experimental quantum communication are highlighted. This work shows how to bridge the gap between current proof-of-principle demonstrations and complete, deterministic experiments.

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