A scheme for the generation of hybrid entanglement between time-bin and wave-like encoding

Elie Gouzien (1) , Floriane Brunel (1) , Sébastien Tanzilli (1) , Virginia d'Auria (2)

1 INPHYNI - Institut de Physique de Nice
2 LKB (Jussieu) - Laboratoire Kastler Brossel

We propose a scheme for the generation of hybrid states entangling a single photon time-bin qubit with a coherent state qubit encoded on phases. Compared to other reported solutions, time-bin encoding makes hybrid entanglement particularly well adapted to applications involving long distance propagation in optical fibres. This makes our proposal a promising resource for future out-of-the-laboratory quantum communication. In this perspective, we analyse our scheme by taking into account realistic experimental resources and discuss the impact of their imperfections on the quality of the obtained hybrid state.

Domaines: Optique [physics.optics]; Physique Quantique [quant-ph]

Elie Gouzien, Floriane Brunel, Sébastien Tanzilli, Virginia d'Auria. A scheme for the generation of hybrid entanglement between time-bin and wave-like encoding. Physical Review A, 2020, 102 (1), ⟨10.1103/PhysRevA.102.012603⟩. ⟨hal-02474883v2⟩