| Description: | [DPS Seminar] Dr. Arindam Mitra (Korea Research Institute of Standards and Science) -- Relating completely positive divisibility of dynamical maps with compatibility of channels |
| Date: | Wednesday, Sep 24, 2025 |
| Time: | 2:30 p.m. - 4 p.m. |
| Venue: | Asima Chatterjee Lecture Theatre |
| Details: | The role of completely positive–indivisibility (CP-indivisibility) and incompatibility as valuable resources for various information-theoretic tasks is widely acknowledged. This study delves into the intricate relationship between CP-divisibility and channel compatibility. Our investigation focuses on the behavior of incompatibility and robustness of quantum channels for a pair of generic dynamical maps. We show that the incompatibility robustness of channels is monotonically non increasing for a pair of generic CP-divisible dynamical maps. Further, our explicit study of the behavior of incompatibility robustness with time for some specific dynamical maps reveals nonmonotonic behavior in the CP-indivisible regime. Additionally, we propose a measure of CP-indivisibility based on the incompatibility robustness of quantum channels. Our investigation provides valuable insights into the nature of quantum dynamical maps and their relevance in information-theoretic applications. |
| Calendar: | Seminar Calendar (entered by sgarain) |