Time-frequency Domain Analogues of Phase Space Sub-Planck Structures
Ludmila Praxmeyer, Piotr Wasylczyk, Czeslaw Radzewicz, Krzysztof Wodkiewicz
Abstract
We present experimental data of the frequency resolved optical gating (FROG) measurements of light pulses revealing interference features corresponding to sub-Planck structures in phase space. For superpositions of pulses a small, sub-Fourier shift in the carrier frequency leads to a state orthogonal to the initial one, although in the representation of standard time-frequency distributions these states seem to have a nonvanishing overlap.
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