Quantifying dynamical coherence with coherence measures

被引:10
|
作者
Kim, Sunho [1 ]
Xiong, Chunhe [2 ]
Kumar, Asutosh [3 ,4 ,5 ]
Zhang, Guijun [6 ]
Wu, Junde [6 ]
机构
[1] Harbin Engn Univ, Sch Math Sci, Harbin 150001, Peoples R China
[2] Zhejiang Univ City Coll, Sch Comp & Comp Sci, Hangzhou 310015, Peoples R China
[3] Magadh Univ, Gaya Coll, PG Dept Phys, Rampur 823001, Gaya, India
[4] HBNI, Harish Chandra Res Inst, Chhatnag Rd, Allahabad 211019, Uttar Pradesh, India
[5] Vaidic & Modern Phys Res Ctr, Bhinmal 343029, Jalore, India
[6] Zhejiang Univ, Sch Math Sci, Hangzhou 310027, Peoples R China
基金
中国国家自然科学基金;
关键词
D O I
10.1103/PhysRevA.104.012404
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
Quantum coherence, like entanglement, is a fundamental resource in quantum information. In recent years, remarkable progress has been made in formulating resource theory of coherence from a broader perspective. The notions of block-coherence and POVM-based coherence have been established. Certain challenges, however, remain to be addressed. It is difficult to define incoherent operations directly, without requiring incoherent states, which proves a major obstacle in establishing the resource theory of dynamical coherence. In this paper, we overcome this limitation by introducing an alternate definition of incoherent operations induced via coherence measures and quantify dynamical coherence based on this definition. Finally, we apply our proposed definition to quantify POVM-based dynamical coherence.
引用
收藏
页数:7
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