期刊
PHYSICAL REVIEW LETTERS
卷 116, 期 16, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.116.160407
关键词
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资金
- National Research Foundation (NRF) [NRF-NRFF2016-02]
- EPSRC [EP/L01405X/1]
- John Templeton Foundation [54914]
- National Research Foundation
- Ministry Education in Singapore Grant and Academic Research Fund [MOE2012-T3-1-009]
- National Basic Research Program of China [2011CBA00300, 2011CBA00302]
- National Natural Science Foundation of China [11450110058, 61033001, 613611, 36003]
- Leverhulme Trust
- Oxford Martin School
- Wolfson College, University of Oxford
- Engineering and Physical Sciences Research Council [EP/L01405X/1, 1814297] Funding Source: researchfish
- EPSRC [EP/L01405X/1] Funding Source: UKRI
Recent results in quantum information theory characterize quantum coherence in the context of resource theories. Here, we study the relation between quantum coherence and quantum discord, a kind of quantum correlation which appears even in nonentangled states. We prove that the creation of quantum discord with multipartite incoherent operations is bounded by the amount of quantum coherence consumed in its subsystems during the process. We show how the interplay between quantum coherence consumption and creation of quantum discord works in the preparation of multipartite quantum correlated states and in the model of deterministic quantum computation with one qubit.
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