Superposition Of Squeezed States

We discuss the statistical and squeezing properties of squeezed coherent state, squeezedrnvacuum state and displaced squeezed vacuum state. We also study the quantum propertiesrnof the superposition of squeezed coherent and squeezed vacuum states as well as thernsuperposition of displaced squeezed vacuum and squeezed vacuum states.rnIt so turns out that the mean photon number of the superposed state is the sum ofrnthe mean photon number of the separate squeezed states. In addition, we note that thernsuperposition of a coherent state and a squeezed vacuum state is the displaced squeezedrnvacuum state.rnFurthermore, the superposition leads to a two-fold increase in the degree of squeezing.rnUnlike the individual squeezed states, the squeezing occurs for 0 < r < 1/2rn ln 2

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