We present a Bell-state analyzer for time-bin qubits allowing the detection of three out of four Bell-states with linear optics, two detectors and no auxiliary photons. The theoretical success rate of this scheme is 50%. A teleportation experiment was performed to demonstrate its functionality. We also present a teleportation experiment with a Fidelity larger than the cloning limit of F=5/6.
@article{arxiv.quant-ph/0604211,
title = {Experimental Quantum Teleportation with a 3-Bell-state Analyzer},
author = {J. A. W. van Houwelingen and A. Beveratos and N. Brunner and N. Gisin and H. Zbinden},
journal= {arXiv preprint arXiv:quant-ph/0604211},
year = {2009}
}