Artículos de revistas
Witnessing spin-orbit thermal entanglement in rare-earth ions
Fecha
2013-08Registro en:
Europhysics Letters - EPL, Les Ulis : EDP Sciences,v. 103, n. 4, p. 40002-p1-40002-p4, Aug. 2013
0295-5075
10.1209/0295-5075/103/40002
Autor
Duarte, O. S.
Castro, C. S.
Pinto, Diogo de Oliveira Soares
Reis, M. S.
Institución
Resumen
We explore spin-orbit thermal entanglement in rare-earth ions, based on a witness obtained from mean energies. The entanglement temperature TE, below which entanglement emerges, is found to be thousands of kelvins above room temperature for all light rare earths. This demonstrates the robustness to environmental fluctuations of entanglement between the internal degrees of freedom of a single ion.