Classical versus complex fractional Fourier transformation.
The quantum optical complex fractional Fourier transform (FRFT) has been related to the classical FRFT using both classical and quantum formalisms. In particular, it was shown that the kernel of the complex FRFT can be classically produced with rotated astigmatic optical systems that mimic the quantum entanglement property.
Dragoman
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Department of Physics, University of Bucharest, P.O. Box MG-11, 077125 Bucharest, Romania. danieladragoman@yahoo.com