Magnetic susceptibility as a macroscopic entanglement witness
By M. Wiesniak, Vlatko Vedral, Č. Brukner. 2005
151 citations recorded by the source corpus.
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.
Subfields: Artificial Intelligence, Atomic and Molecular Physics, and Optics
View Paper: https://www.semanticscholar.org/paper/cc0f1c81b87995d422df6c0fe3e4444f622a775d
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In Artificial Intelligence
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In Atomic and Molecular Physics, and Optics
- Mehul Malik
- Marcus Huber
- Otfried Gühne
- Nicolai Friis
- Giuseppe Vitagliano
- Géza Tóth
- Arnau Riera
- Paul Skrzypczyk
Citations in the corpus
- Entanglement detection (2008, background): “[521] that if we define the magnetic susceptibility along the directions l = x, y, z as”
- The role of quantum information in thermodynamics—a topical review (2015, background): “the magnetic susceptibility [167] or the entropy [168].”
- Entanglement certification from theory to experiment (2018, background): “[293] M.”