کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1533742 1512569 2015 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Decoherence analysis of multiple photon annihilation-then-creation coherent state: Amplitude decay and phase damping
ترجمه فارسی عنوان
تجزیه و تحلیل انسداد حالت چندگانه نابودی و ایجاد چندگانه فوتون: انحراف آمپولیت و مهار فاز
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد مواد الکترونیکی، نوری و مغناطیسی
چکیده انگلیسی
We mainly study on the effect of decoherence of the multiple photon annihilation-then-creation coherent state (MPACCS) in two different channels, i.e., amplitude decay and phase damping, by virtue of the time-evolution of the Wigner functions (WFs) of such state. Based on deriving the analytical expression of MPACCS's normalization factor related to the Bell-polynomial, the time-evolution of its WFs in each channel is derived analytically and discussed numerically. After undergoing the amplitude decay channel, the partial negativity of WFs diminishes gradually and the WFs have no negative region when the decay time exceeds a threshold value, while the negativity of WFs in phase damping channel varies more slowly than that of the amplitude decay. Especially, at long times WF evolves into the case of vacuum state in amplitude decay channel and a sum of weight WFs of all the Fock states in phase damping channel.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optics Communications - Volume 354, 1 November 2015, Pages 291-298
نویسندگان
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