Quantitative wave-particle duality relations from the density matrix properties
Abstract
We derive upper bounds for Hilbert-Schmidt's quantum coherence of general states of a -level quantum system, a qudit, in terms of its incoherent uncertainty, with the latter quantified using the linear and von Neumann's entropies of the corresponding closest incoherent state. Similar bounds are obtained for Wigner-Yanase's coherence. The reported inequalities are also given as coherence-populations trade-off relations. As an application example of these inequalities, we derive quantitative wave-particle duality relations for multi-slit interferometry. Our framework leads to the identification of predictability measures complementary to Hilbert-Schmidt's, Wigner-Yanase's, and -norm quantum coherences. The quantifiers reported here for the wave and particle aspects of a quanton follow directly from the defining properties of the quantum density matrix (i.e., semi-positivity and unit trace), contrasting thus with most related results from the literature.
Keywords
Cite
@article{arxiv.1809.06354,
title = {Quantitative wave-particle duality relations from the density matrix properties},
author = {Marcos L. W. Basso and Diego S. S. Chrysosthemos and Jonas Maziero},
journal= {arXiv preprint arXiv:1809.06354},
year = {2020}
}