4.6 Article

Enhancing nonclassical properties of quantum states of light using linear optics

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OPTICS LETTERS
卷 48, 期 14, 页码 3645-3648

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Optica Publishing Group
DOI: 10.1364/OL.494609

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In this Letter, a simple and versatile scheme for enhancing nonclassical properties of light states using linear optics and photodetectors is presented. By combining a coherent state and an arbitrary pure state of light at two beam splitters, the amplitude of the coherent state can be tuned to filter out specific Fock components and generate states of light with increased nonclassical features. Two examples of input states are provided, demonstrating the effectiveness of the scheme in enhancing sub-Poissonian statistics or quadrature squeezing of the output states.
In this Letter, we present a simple and versatile scheme for enhancing the nonclassical properties of light states using only linear optics and photodetectors. By combining a coherent state |& alpha;) and an arbitrary pure state of light |& phi;) (excluding coherent states) at two beam splitters, we show that the amplitude & alpha; of the coherent state can be tuned to filter out specific Fock components and generate states of light with increased nonclassical features. We provide two examples of input states and demonstrate the effectiveness of our scheme in enhancing the sub-Poissonian statistics or the quadrature squeezing of the output states.& COPY; 2023 Optica Publishing Group

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