26 March 2025
Asia/Taipei timezone

Optimizing Quantum Subchannel Discrimination: One-Way Communication and Device-Independent Security

26 Mar 2025, 13:47
3m
Atomic, Molecular and Optical Physics Poster Talks

Speaker

Yen-An Shih (National Tsing Hua University)

Description

Steerable states provide a quantum advantage in subchannel discrimination tasks. In this work, we experimentally demonstrate a discrimination task with high-dimensional entanglement and show how local filtering operations can enhance its success probability. By distilling the steerable states, we boost the discrimination probability close to 100%. Our work also confirm the generality of this approach, which is valid across any dimension with appropriately chosen filters. This study establishes subchannel discrimination as a practical application of partially untrusted devices, deepening our understanding of their operational significance.

Primary author

Yen-An Shih (National Tsing Hua University)

Co-author

Presentation materials