学术进展
Classifying coherence with a finite set of witnesses
作者：
时间： 2024-10-25
阅读：
论文作者：
| Xue-Na Zhu, Zhi-Xiang Jin, Gui Bao, Shao-Ming Fei |
论文题目：
| Classifying coherence with a finite set of witnesses |
发表期刊：
J. Phys. A
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摘要：
| Coherence is a fundamental resource in quantum information processing, which can be certified by a coherence witness. In order to detect all the coherent states, we introduce a useful concept of coherence witness and structure the set of coherence witnesses $C^{d}_{[m,M]}$. We present necessary and sufficient conditions of detecting quantum coherence of $d-$dimensional quantum states based on $C^{d}_{[m,M]}$. Moreover,we show that each coherent state can be detected by one of the coherence witnesses in a finite set. The corresponding finite set of coherence witnesses is presented explicitly, which detects all the coherent states. |
