Natural Thermal and Magnetic Entanglement in the 1D Heisenberg Model

2000/09/30 by M. C. Arnesen, S. Bose, Sougato Bose +2 · 14 citations
Computer Science · Physics and Astronomy · #Antiferromagnetism #Condensed matter physics #Field (mathematics) #Heisenberg model #Integrable system #Magnetic field #Mathematical physics #Physics #Quantum #Quantum Information and Cryptography #Quantum and electron transport phenomena #Quantum entanglement #Quantum many-body systems #Quantum mechanics #Spins #Thermal #Thermodynamics #quant-ph

paper · pdf · doi:10.1103/physrevlett.87.017901

4 pages, 5 figures

arxiv created 2001/03/09 · openalex publication_date 2001/06/14 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

We investigate the entanglement between any two spins in a one dimensional Heisenberg chain as a function of temperature and the external magnetic field. We find that the entanglement in an antiferromagnetic chain can be increased by increasing the temperature or the external field. Increasing the field can also create entanglement between otherwise disentangled spins. This entanglement can be confirmed by testing Bell's inequalities involving any two spins in the solid.

Citations

• Can Quantum-Mechanical Description of Physical Reality Be Considered Complete?
• Entanglement of Formation of an Arbitrary State of Two Qubits
• Die gegenw�rtige Situation in der Quantenmechanik
• Transitions in Quantum Networks
• On the Einstein Podolsky Rosen paradox
• Quantifying Entanglement
• Distributed Entanglement

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