Entanglement sharing in $E\otimes\epsilon$ Jahn-Teller model in the presence of a magnetic field

Autor: Liberti, G., Zaffino, R. L., Piperno, F., Plastina, F.
Rok vydání: 2007
Předmět:
Zdroj: Phys. Rev. A 76, 042332 (2007)
Druh dokumentu: Working Paper
DOI: 10.1103/PhysRevA.76.042332
Popis: We discuss the ground state entanglement of the $E\otimes\epsilon$ Jahn-Teller model in the presence of a strong transverse magnetic field as a function of the vibronic coupling strength. A complete characterization is given of the phenomenon of entanglement sharing in a system composed by a qubit coupled to two bosonic modes. Using the residual $I$-tangle, we find that three-partite entanglement is significantly present in the system in the parameter region near the bifurcation point of the corresponding classical model.
Databáze: arXiv