1. What contributions have the authors mentioned in the paper "A columnar model explaining long-term memory" ?
In this study, the authors first examined the performance of columnar memory and found that it was comparable to holographic memory.. Secondly, the authors showed that this model could explain the above-mentioned experimental results as well as associative memory.
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2. How many periods are necessary for the FT analysis?
When the authors inversely Fourier transform Eq. (1), 2 data points per period are necessary according to the Whittaker–Shannon sampling theorem[41], and 2 periods are necessary for the FT analysis.
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3. What is the rigorous calculation algorithm for scattering intensity?
Rigorous coupled wave analysis (RCWA) is one of the most rigorous calculation algorithms for scattering intensity, but the calculations are generally limited to periodic scatterers [52].
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4. What is the shape of the column?
Because the shape is columnar, and the authors can consider the change of scattering according to the shape and size of the column, memory can reflect the subtle changes in the column.
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![Fig. 1. The method used measure the distances [17] (a) The sample array of rectangles. (b) The analyzed results of the angular distribution of scattering. The horizontal axis is the calculated distance. The arrows indicate peaks, which represent the distance from rectangle 1 to rectangles 2, 3, and 4.](/figures/fig-1-the-method-used-measure-the-distances-17-a-the-sample-2htly026.webp)
