Measurement - induced qudit geometric discord
Quantum Physics
2017-06-07 v2
Abstract
We study the measurement-induced geometric discord based on the trace norm and generalize some properties known for qutrits to qudits. Previous preliminary results for bipartite qutrit systems (i.e. d=3 systems) are here strictly proved for arbitrary d. Present study supports observations, coming also from other approaches, that systems with show similar behaviour when quantum correlations are concerned, but there is pronounced difference between d=2 and d=3. Qubit systems are exceptionally simple. Underlying geometry of state spaces and related Lie groups are responsible for that.
Cite
@article{arxiv.1607.08753,
title = {Measurement - induced qudit geometric discord},
author = {Piotr Lugiewicz and Andrzej Frydryszak and Lech Jakobczyk},
journal= {arXiv preprint arXiv:1607.08753},
year = {2017}
}
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