- Tytuł:
- The Effect of Field Changing on Two Qubit Entanglement with Different Criteria
- Autorzy:
-
Mirzaee, M.
Batavani, M. - Powiązania:
- https://bibliotekanauki.pl/articles/1398634.pdf
- Data publikacji:
- 2015-03
- Wydawca:
- Polska Akademia Nauk. Instytut Fizyki PAN
- Tematy:
- 03.65.Ud
- Opis:
- We investigate the effect of field changing on two qubit entanglement. We choose the coherent state, the cat state and the squeezed state as different states of interacting field with atom. The correlation between two qubits can be degraded by environmental noise, this phenomenon has been labelled sudden death of entanglement. The double Jaynes-Cummings model as a solvable model is used for describing the dynamic of sudden death of entanglement. We measure two-qubit entanglement using the concurrence and the negativity. The Fisher information is introduced, too, and compares results with previous entanglement measures. Finally we conclude that the Fisher information is not an entanglement measure.
- Źródło:
-
Acta Physica Polonica A; 2015, 127, 3; 663-668
0587-4246
1898-794X - Pojawia się w:
- Acta Physica Polonica A
- Dostawca treści:
- Biblioteka Nauki
Artykuł