dorsal/arxiv
View SchemaMixed state sensitivity of several quantum information benchmarks
| Authors | Nicholas A. Peters, Tzu-Chieh Wei, Paul G. Kwiat |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0407172 |
| URL | https://arxiv.org/abs/quant-ph/0407172 |
| DOI | 10.1103/PhysRevA.70.052309 |
| Journal | PRA v70, 052309, (2004) |
Abstract
We investigate an imbalance between the sensitivity of the common state measures--fidelity, trace distance, concurrence, tangle, von Neumann entropy and linear entropy--when acted on by a depolarizing channel. Further, in this context we explore two classes of two-qubit entangled mixed states. Specifically, we illustrate a sensitivity imbalance between three of these measures for depolarized (i.e., Werner-state like) nonmaximally entangled and maximally entangled mixed states, noting that the size of the imbalance depends on the state's tangle and linear entropy.
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"abstract": "We investigate an imbalance between the sensitivity of the common state\nmeasures--fidelity, trace distance, concurrence, tangle, von Neumann entropy\nand linear entropy--when acted on by a depolarizing channel. Further, in this\ncontext we explore two classes of two-qubit entangled mixed states.\nSpecifically, we illustrate a sensitivity imbalance between three of these\nmeasures for depolarized (i.e., Werner-state like) nonmaximally entangled and\nmaximally entangled mixed states, noting that the size of the imbalance depends\non the state\u0027s tangle and linear entropy.",
"arxiv_id": "quant-ph/0407172",
"authors": [
"Nicholas A. Peters",
"Tzu-Chieh Wei",
"Paul G. Kwiat"
],
"categories": [
"quant-ph"
],
"doi": "10.1103/PhysRevA.70.052309",
"journal_ref": "PRA v70, 052309, (2004)",
"title": "Mixed state sensitivity of several quantum information benchmarks",
"url": "https://arxiv.org/abs/quant-ph/0407172"
},
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