dorsal/arxiv
View SchemaEntanglement of electron spins of non-interacting electron gases
| Authors | Sangchul Oh, Jaewan Kim |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0403214 |
| URL | https://arxiv.org/abs/quant-ph/0403214 |
| DOI | 10.1103/PhysRevA.69.054305 |
| Journal | Physical Review A 69, 054305 (2004) |
Abstract
We study entanglement of electron spins in many-body systems based on the Green's function approach. As an application we obtain the two-particle density matrix of a non-interacting electron gas and identify its two-spin density matrix as a Werner state. We calculate entanglement measures, a classical correlation, mutual information, and a pair distribution function of two electrons at zero and finite temperatures. We find that changes of entanglement measures are proportional to $T^2$ at low temperatures.
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"abstract": "We study entanglement of electron spins in many-body systems based on the\nGreen\u0027s function approach. As an application we obtain the two-particle density\nmatrix of a non-interacting electron gas and identify its two-spin density\nmatrix as a Werner state. We calculate entanglement measures, a classical\ncorrelation, mutual information, and a pair distribution function of two\nelectrons at zero and finite temperatures. We find that changes of entanglement\nmeasures are proportional to $T^2$ at low temperatures.",
"arxiv_id": "quant-ph/0403214",
"authors": [
"Sangchul Oh",
"Jaewan Kim"
],
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"quant-ph",
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],
"doi": "10.1103/PhysRevA.69.054305",
"journal_ref": "Physical Review A 69, 054305 (2004)",
"title": "Entanglement of electron spins of non-interacting electron gases",
"url": "https://arxiv.org/abs/quant-ph/0403214"
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