Thermal concurrence mixing in a one-dimensional Ising model

Gunlycke, D. and Kendon, V.M. and Vedral, V. and Bose, S. (2001) Thermal concurrence mixing in a one-dimensional Ising model. Physical Review A, 64 (4). 042302. ISSN 2469-9926 (

[thumbnail of Gunlycke-etal-PRA-2001-Thermal-concurrence-mixing-in-a-one-dimensional-Ising-model]
Text. Filename: Gunlycke_etal_PRA_2001_Thermal_concurrence_mixing_in_a_one_dimensional_Ising_model.pdf
Final Published Version

Download (472kB)| Preview


The natural thermal entanglement in an Ising ring in an external magnetic field was studied. The interactions of two qubits via the Ising interaction in a magnetic field orthogonal to the z direction was analyzed. A theorem for the concurrence mixing due to occupation of the ground and the excited state was formulated. The variation of entanglement with the orientation of magnetic field was numerically considered.