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.
Converting Coherence to Quantum Correlations / Ma, J.; Yadin, B.; Girolami, D.; Vedral, V.; Gu, M.. - In: PHYSICAL REVIEW LETTERS. - ISSN 0031-9007. - 116:16(2016), p. 160407. [10.1103/PhysRevLett.116.160407]
|Titolo:||Converting Coherence to Quantum Correlations|
|Data di pubblicazione:||2016|
|Digital Object Identifier (DOI):||http://dx.doi.org/10.1103/PhysRevLett.116.160407|
|Appare nelle tipologie:||1.1 Articolo in rivista|