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We propose an optical read-out scheme allowing a demonstration of principleof information extraction below the diffraction limit. This technique, whichcould lead to improvement in data read-out density onto optical discs, isindependent from the wavelength and numerical aperture of the readingapparatus, and involves a multi-pixel array detector. Furthermore, we show howto use non classical light in order to perform bit discrimination beyond thequantum noise limit.Comment: 9 page

Optical storage of high-density information beyond the diffraction limit: A quantum study