4 papers
Quantifying and detecting quantum-state texture
Xiangyu Chen, Qiang Lei
Quantum-state texture is a recently proposed quantum resource that characterizes the inhomogeneity of a quantum state's matrix element distribution in the computational basis, enri…
Construction and characterization of measures in block coherence resource theory
Xiangyu Chen, Qiang Lei
Quantum coherence, as a direct manifestation of the quantum superposition principle, is a crucial resource in quantum information processing. Block coherence resource theory genera…
Imaginarity measures induced by relative entropy
Xiangyu Chen, Qiang Lei
In this paper, we introduce two measures for the resource theory of imaginarity. One is induced by ----Rényi relative entropy and the other, defined for positive definite d…
Imaginarity of quantum channels: Refinement and Alternative
Xiangyu Chen, Qiang Lei
In this paper, we introduce the framework for quantifying the imaginarity of quantum channels. Besides, an alternative framework is given together to simplify the process of verify…