Demonstrating higher-order nonclassical effects by photon-added classical states: Realistic schemes

Abstract

Detecting nonclassical properties that do not allow classical interpretation of photoelectric counting events is one of the crucial themes in quantum optics. Observation of individual nonclassical effects for a single-mode field, however, has been so far practically confined to sub-Poissonian statistics and quadrature squeezing. We show that a photon-added classical (coherent or thermal) state exhibits generalized nonclassical features in all orders of creation and annihilation operators, thereby becoming a promising candidate for studying higher-order nonclassical effects. Our analysis demonstrates robustness of these effects against nonideal experimental conditions.

7 pages, 7 figures, published version

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• Photon added nonlinear coherent states for a one mode field in a Kerr medium
• Increasing and decreasing entanglement characteristics for continuous variables by a local photon subtraction
• Generating Hermite polynomial excited squeezed states by means of conditional measurements on a beam splitter
• Truncated Coherent States and Photon-addition
• Nonclassical properties of Hermite polynomial's excitation on squeezed vacuum and its decoherence in phase-sensitive reservoirs
• M Times Photon Subtraction-Addition Coherent Superposition Operated Odd-Schrődinger-cat State: Nonclassicality and Decoherence