dorsal/arxiv
View SchemaMagnetic Susceptibility as a Macrosopic Entaglement Witness
| Authors | M. Wiesniak, V. Vedral, C. Brukner |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0503037 |
| URL | https://arxiv.org/abs/quant-ph/0503037 |
| DOI | 10.1088/1367-2630/7/1/258 |
| Journal | New Journal of Physics 7, 258 (2005) |
Abstract
We show that magnetic susceptibility can reveal spin entanglement between individual constituents of a solid, while magnetisation describes their local properties. We then show that these two thermodynamical quantities satisfy complementary relation in the quantum-mechanical sense. It describes sharing of (quantum) information in the solid between spin entanglement and local properties of its individual constituents. Magnetic susceptibility is shown to be a macroscopic spin entanglement witness that can be applied without complete knowledge of the specific model (Hamiltonian) of the solid.
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"abstract": "We show that magnetic susceptibility can reveal spin entanglement between\nindividual constituents of a solid, while magnetisation describes their local\nproperties. We then show that these two thermodynamical quantities satisfy\ncomplementary relation in the quantum-mechanical sense. It describes sharing of\n(quantum) information in the solid between spin entanglement and local\nproperties of its individual constituents. Magnetic susceptibility is shown to\nbe a macroscopic spin entanglement witness that can be applied without complete\nknowledge of the specific model (Hamiltonian) of the solid.",
"arxiv_id": "quant-ph/0503037",
"authors": [
"M. Wiesniak",
"V. Vedral",
"C. Brukner"
],
"categories": [
"quant-ph"
],
"doi": "10.1088/1367-2630/7/1/258",
"journal_ref": "New Journal of Physics 7, 258 (2005)",
"title": "Magnetic Susceptibility as a Macrosopic Entaglement Witness",
"url": "https://arxiv.org/abs/quant-ph/0503037"
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