Event
01_1
| 제출번호(No.) | 0104 |
|---|---|
| 분류(Section) | Special Session |
| 분과(Session) | Quantum Information, Computation and Cryptography (SS-04) |
| 영문제목 (Title(Eng.)) |
Distinguishability, ensemble steering, and the no-signaling principle |
| 저자(Author(s)) |
Joonwoo Bae1 Hanyang University1, Freiburg Institute for Advanced Study, Germany2 |
| 초록본문(Abstract) | We consider a fundamental operational task, distinguishing systems in different states, in the framework of generalized probabilistic theories and provide a general formalism of minimum-error discrimination of states in convex optimization. With the formalism established, we show that the distinguishability is generally a global property assigned to the ensemble of given states rather than other details of a given state space or pairwise relations of given states. Then, we consider bipartite systems where ensemble steering is possible, and show that show that with two operational tasks, ensemble steering and the no-signaling condition, the distinguishability is tightly determined. The result is independent to the structure of the state space. This concludes that the distinguishability is generally determined by the compatibility between two tasks, ensemble steering on states and the non-signaling principle on probability distributions of outcomes. |
| 분류기호 (MSC number(s)) |
81P94, 81P45, 81P16 |
| 키워드(Keyword(s)) | quantum cryptography, quantum information theory, quantum correlations |
| 강연 형태 (Language of Session (Talk)) |
Korean |