| Инд. авторы: | Tomilin V.A., Il'ichov L.V. |
| Заглавие: | Correlations of photoemissions in a multiatomic ensemble driven by a cat-state field |
| Библ. ссылка: | Tomilin V.A., Il'ichov L.V. Correlations of photoemissions in a multiatomic ensemble driven by a cat-state field // Physical Review A. - 2017. - Vol.96. - Iss. 6. - Art.063805. - ISSN 2469-9926. - EISSN 2469-9934. |
| Внешние системы: | DOI: 10.1103/PhysRevA.96.063805; WoS: 000417074000006; |
| Реферат: | eng: A system of two-level noninteracting atoms driven by superposition of two Glauber coherent photonic states (a cat state) is studied. The field state is continuously restored by a source explicitly incorporated into the model. Due to its nature, the cat state changes phase by pi upon stimulated excitation of any atom, a peculiar kind of coherent quantum feedback. That results in correlations between photonic and atomic subsystems. In the limit of a strong field, the ansatz for the system's density matrix is proposed and an approximate analytical solution to the master equation is obtained in the case of a large number of atoms and slow spontaneous emission. Based on this solution, the steady-state second-order correlation function of atomic photoemissions is evaluated and investigated. The results demonstrate a remarkable difference from the case of the classical field (i.e., the field in a Glauber coherent state).
|
| Ключевые слова: | SUPERPOSITIONS; FEEDBACK-CONTROL; LOOP; RESONANCE FLUORESCENCE; 2-LEVEL ATOM; GENERATION; |
| Издано: | 2017 |
| Физ. характеристика: | 063805 |