Abstract
The time evolution of the linear entropy of an atom in k-photon Jaynes-Cummings model is investigated taking into consideration Stark shift and Kerr-like medium. The effect of both the Stark shift and Kerr-like medium on the linear entropy is analyzed using a numerical technique for the field initially in coherent state and in even coherent state. The results show that the presence of the Kerr-like medium and Stark shift has an important effect on the properties of the entropy and entanglement. It is also shown that the setting of the initial state plays a significant role in the evolution of the linear entropy and entanglement.
| Original language | English |
|---|---|
| Pages (from-to) | 931-936 |
| Number of pages | 6 |
| Journal | Communications in Theoretical Physics |
| Volume | 53 |
| Issue number | 5 |
| DOIs | |
| State | Published - 2010 |
Keywords
- K-photon Jaynes-Cummings model
- Kerr-like medium
- Linear entropy
- Stark shift
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