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- Title
Entanglement rebirth of multi-trapped ions with trap phonon modes: entanglement sudden death with recovery.
- Authors
Abdel-Aty, M.; Bouchene, M.; McGurn, A.
- Abstract
We consider a multi-qubit system consisting of two trapped ions coupled in a laser field. The ions are identical three-level electronic systems which interact with one another through the phonon modes of their relative or center of mass motions, and the system is tuned so that two-phonon processes dominate the electronic transitions. The resulting evolution of the system is studied theoretically with a focus on the entanglement properties of the system. A method of quantifying the entanglement is discussed, and the time dependence of these quantifications is determined. The cases of the two ions coupled to the same phonon field and to two different isolated phonon fields are compared for Fock cavity modes. Instances of the entanglement sudden death recovery are identified in these various systems.
- Subjects
ION traps; PHONONS; QUANTUM theory; QUBITS; SYSTEMS design
- Publication
Quantum Information Processing, 2014, Vol 13, Issue 9, p1937
- ISSN
1570-0755
- Publication type
Article
- DOI
10.1007/s11128-014-0787-x