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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 d3d \geq 3 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.

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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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Published version

R2 v1 2026-06-22T15:07:36.868Z