title: The complementarity relations of quantum coherence in quantum information processing.
abstract: We establish two complementarity relations for the relative entropy of coherence in quantum information processing, i.e., quantum dense coding and teleportation. We first give an uncertainty-like expression relating local quantum coherence to the capacity of optimal dense coding for bipartite system. The relation can also be applied to the case of dense coding by using unital memoryless noisy quantum channels. Further, the relation between local quantum coherence and teleportation fidelity for two-qubit system is given.
authors.affiliation: School of Physics, China University of Mining and Technology, Xuzhou 221116, China.
authors.forename: Fei
authors.initials: F
authors.lastname: Pan
authors.affiliation: School of Physics, China University of Mining and Technology, Xuzhou 221116, China.
authors.forename: Liang
authors.initials: L
authors.lastname: Qiu
authors.affiliation: School of Physics, China University of Mining and Technology, Xuzhou 221116, China.
authors.forename: Zhi
authors.initials: Z
authors.lastname: Liu