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| Main Authors: | , , , |
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| Format: | Preprint |
| Published: |
2024
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2411.07803 |
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| _version_ | 1866916478287085568 |
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| author | Yang, Kang-Kang Shen, Zhong-Xi Wang, Zhi-Xi Fei, Shao-Ming |
| author_facet | Yang, Kang-Kang Shen, Zhong-Xi Wang, Zhi-Xi Fei, Shao-Ming |
| contents | Quantum coherence serves as a crucial physical resource, with its quantification emerging as a focal point in contemporary research. Superadditivity constitutes one of the most fundamental attributes in characterizing the coherence distribution in multipartite quantum systems. In this paper, we provide a way to derive tighter superadditivity inequalities of $l_1$-norm coherence measure for arbitrary multiqubit states. We present a category of superadditivity relations related to the $α$-th ($α\geqslant 2$) power of $l_{1}$-norm coherence $C_{l_{1}}$ under certain conditions. Our results are better than existing ones and are illustrated in detail with examples. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2411_07803 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Tighter superadditivity relations for $l_{1}$-norm coherence measure Yang, Kang-Kang Shen, Zhong-Xi Wang, Zhi-Xi Fei, Shao-Ming Quantum Physics Quantum coherence serves as a crucial physical resource, with its quantification emerging as a focal point in contemporary research. Superadditivity constitutes one of the most fundamental attributes in characterizing the coherence distribution in multipartite quantum systems. In this paper, we provide a way to derive tighter superadditivity inequalities of $l_1$-norm coherence measure for arbitrary multiqubit states. We present a category of superadditivity relations related to the $α$-th ($α\geqslant 2$) power of $l_{1}$-norm coherence $C_{l_{1}}$ under certain conditions. Our results are better than existing ones and are illustrated in detail with examples. |
| title | Tighter superadditivity relations for $l_{1}$-norm coherence measure |
| topic | Quantum Physics |
| url | https://arxiv.org/abs/2411.07803 |