[Joint CQSE & NCTS Seminar] Distillation of steering and impossible distillation of measurement incompatibility under local filters

• Event Date: 2024-03-15
• Chen, Jhan Yu 陳詹喻
• Quantum Information and Quantum Computing Quantum computing and interdisciplinary applications
• Speaker: Prof. Huan-Yu Ku (National Taiwan Normal University)  /  Host: Prof. Hsi-Sheng Goan
  Place: NCTS Physics Lecture Hall, 4F, Chee-Chun Leung Cosmology Hall, NTU

Title: [Joint CQSE & NCTS Seminar] Distillation of steering and impossible distillation of measurement incompatibility under local filters
Speaker: Prof. Huan-Yu Ku (National Taiwan Normal University)
Time: 2024/3/15 (Fri.) 14:30-15:30
Place: NCTS Physics Lecture Hall, 4F, Chee-Chun Leung Cosmology Hall, NTU
Online: https://nationaltaiwanuniversity-zbh.my.webex.com/nationaltaiwanuniversity-zbh.my/j.php?MTID=mb00e764354d74a2b322c54de4cfdf7da
 

Abstract

Quantum steering is a central resource for one-sided device-independent quantum information. It is manipulated via one-way local operations and classical communication, such as local filtering on the trusted party. Here, we provide a necessary and sufficient condition for a steering assemblage to be transformable into another via local filtering. We characterize the equivalence classes with respect to filters in terms of the steering equivalent observables (SEO), first proposed to connect the problem of steerability and measurement incompatibility. We provide an efficient method to compute the extractable steerability that is maximal via local filters and show that it coincides with the incompatibility of the SEO. We also show that measurement incompatibility cannot be distilled under the filtering operation.
 

Biography