کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
9867142 1529972 2005 20 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Von Neumann entropy and phase distribution of two mode parametric amplifier interacting with a single atom
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم فیزیک و نجوم (عمومی)
پیش نمایش صفحه اول مقاله
Von Neumann entropy and phase distribution of two mode parametric amplifier interacting with a single atom
چکیده انگلیسی
In the present article, we introduce a Hamiltonian model that consists of two modes of the field in a perfect cavity to interact with a single two-level atom. The interaction between the fields has been taken into account and considered to be in the parametric amplifier form. The model in one hand can be regarded as a generalization of the Jaynes-Cummings model (JCM), however, in the other hand it can be considered as a generalization of the parametric amplifier model. Under a certain condition the exact solution to the Schrödinger equation is obtained. Employing this solution and for chosen values of different parameters we discuss numerically the atomic occupation probabilities as well as the degree of entanglement through the entropy of the field. The system shows superstructure phenomenon similar to that appeared from the effect of the Kerr-like medium on the Jaynes-Cummings model. The von Neumann entropy and phase distribution for both two-mode correlated and uncorrelated coherent states cases are also considered.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Annals of Physics - Volume 318, Issue 2, August 2005, Pages 266-285
نویسندگان
, , ,