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Please use this identifier to cite or link to this item: http://hdl.handle.net/123456789/2565

Authors: Limenew, Alemu
Advisors: Dr.Fesseha Kassahun
Copyright: Jun-2010
Date Added: 4-May-2012
Publisher: AAU
Abstract: We discuss the statistical and squeezing properties of squeezed coherent state, squeezed vacuum state and displaced squeezed vacuum state. We also study the quantum properties of the superposition of squeezed coherent and squeezed vacuum states as well as the superposition of displaced squeezed vacuum and squeezed vacuum states. It so turns out that the mean photon number of the superposed state is the sum of the mean photon number of the separate squeezed states. In addition, we note that the superposition of a coherent state and a squeezed vacuum state is the displaced squeezed vacuum state. Furthermore, the superposition leads to a two-fold increase in the degree of squeezing. Unlike the individual squeezed states, the squeezing occurs for 0 < r < 1 ln 2.
URI: http://hdl.handle.net/123456789/2565
Appears in:Thesis - Physics

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