# Witnessing single-photon entanglement with local homodyne measurements: analytical bounds and robustness to losses

@article{Ho2012WitnessingSE, title={Witnessing single-photon entanglement with local homodyne measurements: analytical bounds and robustness to losses}, author={Melvyn Ho and Olivier Morin and Jean-Daniel Bancal and Nicolas Gisin and Nicolas Sangouard and Julien Laurat}, journal={New Journal of Physics}, year={2012}, volume={16}, pages={103035} }

Single-photon entanglement is one of the primary resources for quantum networks, including quantum repeater architectures. Such entanglement can be revealed with only local homodyne measurements through the entanglement witness presented in Morin et al (2013 Phys. Rev. Lett. 110 130401). Here, we provide an extended analysis of this witness by introducing analytical bounds and by reporting measurements confirming its great robustness with regard to losses. This study highlights the potential of…

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