Entanglement sharing in Ex{epsilon} Jahn-Teller model in the presence of a magnetic field

Journal Article · Mon Oct 15 00:00:00 EDT 2007 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.76.042332· OSTI ID:21020701

Liberti, Giuseppe ^[1]; Zaffino, Rosa Letizia; Piperno, Francesco; Plastina, Francesco ^[1]

---

1. Dipartimento di Fisica, Universita della Calabria, 87036 Arcavacata di Rende (Italy)

We discuss the ground state entanglement of the Ex{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.

• OSTI ID: 21020701
• Journal Information: Physical Review. A, Vol. 76, Issue 4; Other Information: DOI: 10.1103/PhysRevA.76.042332; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 1050-2947
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
BIFURCATION
GROUND STATES
JAHN-TELLER EFFECT
MAGNETIC FIELDS
QUANTUM COMPUTERS
QUANTUM ENTANGLEMENT
QUANTUM MECHANICS
QUBITS