| Autor: |
Tahira Nasreen, K. Zaheer |
| Rok vydání: |
1994 |
| Předmět: |
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| Zdroj: |
Physical review. A, Atomic, molecular, and optical physics. 49(1) |
| ISSN: |
1050-2947 |
| Popis: |
The pure-state evolution of the atomic as well as the field states in the resonant two-photon Jaynes-Cummings model with the field initially in the coherent state is studied. Analytic expressions for various quantities involved are obtained under the large-n\ifmmode\bar\else\textasciimacron\fi{} approximation. It is shown that the atom as well as the field are approximately in the pure state for gt=k\ensuremath{\pi}/4, where k is an integer and in a completely pure state for gt=k\ensuremath{\pi}. The field states generated at the times gt=k\ensuremath{\pi}/4 are shown to be a quantum superposition of the coherent states for a particular choice of the relative phase. The interference between these states leads to a spiked photon-number distribution but the field is still Poissonian. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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