Автор |
Cao Chang-Qi |
Дата выпуска |
1995-12-01 |
dc.description |
The amplitude squeezing of coherent light in a high-Q cavity by interaction with atoms entering regularly one by one is studied. The interaction is assumed to be of two-photon transition type, and the mean photon number N of the initial coherent light is assumed to be large. The interaction interval tau for an individual atom is taken as the favourable value pi /g, where g denotes the effective coupling constant. This value makes an incoming atom in the upper level change to the lower level at the exit. The Golubev-Sokolov equation for the density matrix of photons and generating function approach are utilized without any approximation. From this equation, the variance squared of photon number < Delta n(t)<sup>2</sup>><sup>av</sup> as a function of t is derived. Over a certain range of parameters, < Delta n(t)<sup>2</sup>><sub>av</sub>/<n(t)><sup>av</sup> may have a minimum value much lower than its steady-state value 1/2 at some moment. The correlation functions and power spectrums of the photon number noise and of the output photon current noise are also investigated. |
Формат |
application.pdf |
Издатель |
Institute of Physics Publishing |
Название |
Amplitude squeezing of coherent light in a high-Q cavity by regular injection of atoms of two-photon transition |
Тип |
paper |
DOI |
10.1088/1355-5111/7/6/001 |
Electronic ISSN |
1361-6625 |
Print ISSN |
1355-5111 |
Журнал |
Quantum and Semiclassical Optics: Journal of the European Optical Society Part B |
Том |
7 |
Первая страница |
923 |
Последняя страница |
932 |
Аффилиация |
Cao Chang-Qi; Dept. of Phys., Beijing Univ., China |
Выпуск |
6 |