π-tangle of a Jaynes-Cummings System and an Isolated Atom

Using the π -tangle, we investigate entanglement properties of a quantum system consisted of a Jaynes-Cummings system and an isolated atom. We obtain analytical expressions of one-tangle, two-tangle and the π -tangle. Entanglement behaviors of the system are analyzed according to the analytical resu...

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Veröffentlicht in:	International journal of theoretical physics 2018-04, Vol.57 (4), p.1141-1147
Hauptverfasser:	Zhang, Hua-Ping, Qiang, Wen-Chao
Format:	Artikel
Sprache:	eng
Schlagworte:	Elementary Particles Mathematical analysis Mathematical and Computational Physics Physics Physics and Astronomy Quantum entanglement Quantum Field Theory Quantum Physics Quantum theory Theoretical
Online-Zugang:	Volltext
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Beschreibung
Zusammenfassung:	Using the π -tangle, we investigate entanglement properties of a quantum system consisted of a Jaynes-Cummings system and an isolated atom. We obtain analytical expressions of one-tangle, two-tangle and the π -tangle. Entanglement behaviors of the system are analyzed according to the analytical results. We find that the one-tangles have some relations with geometrical discord and entanglement sudden death never occurs in the total system.
ISSN:	0020-7748 1572-9575
DOI:	10.1007/s10773-017-3644-8