Enhanced Subchannel Discrimination with postselection

Wan-Guan Chang^1,2*, Gelo Noel M. Tabia¹, Huan-Yu Ku³, Costantino Budroni³

¹Department of Physics and Center for Quantum Frontiers of Research & Technology (Qfort), National Cheng Kung University, Tainan, Taiwan
²Institute of Information Science, Academia Sinica, Taipei, Taiwan
³IQOQI - Institute for Quantum Optics and Quantum Information, Austrian Academy of Sciences, Vienna, Austria

* Presenter:Wan-Guan Chang, email:tom40109@gmail.com

In this work, we investigated the properties of the subchannel discrimination problem corresponding to the dual problem of the steering robustness and the success probability of the discrimination game. According to our result, we obtained that the local filter actually improve the success probability of the same subchannel discrimination game.

Keywords: Quantum Information, Quantum steering, Incompatibility Robustness, Steering Robustness