Journal article
Magnetic susceptibility as a macroscopic entanglement witness
- Abstract:
- We show that magnetic susceptibility can reveal spin entanglement between individual constituents of a solid, while magnetization describes their local properties. We then show that magnetization and its variance (equivalent to magnetic susceptibility for a wide class of systems) 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 (thermodynamical) spin entanglement witness that can be applied without complete knowledge of the specific model (Hamiltonian) of the solid. © IOP Publishing Ltd and Deutsche Physikalische Gesellschaft.
- Publication status:
- Published
- Peer review status:
- Peer reviewed
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(Preview, Version of record, pdf, 126.2KB, Terms of use)
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- Publisher copy:
- 10.1088/1367-2630/7/1/258
Authors
+ Engineering and Physical Sciences Research Council
More from this funder
- Funding agency for:
- Vedral, V
- Publisher:
- IOP Publishing
- Journal:
- New Journal of Physics More from this journal
- Volume:
- 7
- Issue:
- 1
- Article number:
- 258
- Publication date:
- 2005-12-01
- DOI:
- EISSN:
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1367-2630
- ISSN:
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1367-2630
- Language:
-
English
- UUID:
-
uuid:96b74bad-078f-47b8-aaaa-18ff6832e2c0
- Local pid:
-
pubs:157510
- Source identifiers:
-
157510
- Deposit date:
-
2012-12-19
Terms of use
- Copyright holder:
- IOP Publishing Ltd and Deutsche Physikalische Gesellschaft
- Copyright date:
- 2005
- Notes:
- Copyright IOP Publishing Ltd and Deutsche Physikalische Gesellschaft. Authors, their institutions and third parties all have the same rights to reuse articles published in New Journal of Physics in accordance with the Creative Commons Attribution 3.0 Unported (CC-BY) license. This allows the articles to be shared, adapted and made commercial use of subject to appropriate attribution.
- Licence:
- CC Attribution (CC BY)
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