学术进展
Nonlocal advantages of quantum imaginarity
作者：
时间： 2024-11-05
阅读：
论文作者：
| Zhi-Wei Wei, Shao-Ming Fei（通讯作者） |
论文题目：
| Nonlocal advantages of quantum imaginarity |
发表期刊：
| PHYSICAL REVIEW A |
| 110, 052202 (2024) |
简介：
| Quantum imaginarity and quantum nonlocality capture the essence of quantumness of a physical system from different aspects. We establish a connection between the imaginarity and quantum nonlocality in any two-qubit states. Based on the imaginarity l_1-norm and relative entropy, we derive complementary relations among the quantum imaginarities with respect to any set of mutually unbiased bases for arbitrary qubit states. Based on these complementary relations, we introduce the nonlocal advantage of quantum imaginarity (NAQI). We show that any two-qubit state with NAQI is quantum steerable, but not vice versa. In addition, we investigate the exclusion property of NAQI in three-qubit pure states. |
