Evaluation of multipartite mode entanglement in linear optics networks

Jun-Yi Wu^1*

¹Physics, Tamkang University, New Taipei City, Taiwan

* Presenter:Jun-Yi Wu, email:wujunyi@gms.tku.edu.tw

Entanglement between modes of indistinguishable particles was a controversial concept for a long time due to the lack of its physical significance. However, recently, it has been shown in theory and demonstrated in experiments that the physical significance of mode entanglement can be revealed between two local multiphoton linear topic networks [Wu and Hofmann, NJP, 19(10), 10303; Kiyohara et al, Optica, Vol. 7, No. 11, p. 1517 (2020)]. To complete our understanding of mode entanglement, we will extend our entanglement evaluation method to multipartite mode entanglement based on the theoretical framework established in [Wu and Murao, NJP, 22, 103054. (2020)] . We will employ our method to evaluate the genuine multipartite mode entanglement generated in multiphoton linear optics networks with CV (squeezed light) and DV (single photon) input sources.

Keywords: Multipartite mode entanglement, Linear optics network, Entanglement evaluation, Squeezed states