Put a standalone wall barrier inside a 2D square well potential

Question

Here is the code for the 2D square well potential:

v[x_, y_] := Piecewise[{{1, 58 < Abs[x]}, {1, 58 < Abs[y]}}]; Plot3D[v[x, y], {x, -70, 70}, {y, -70, 70}]

Is Piecewise the right function to use? How do I put a standalone wall barrier inside this square well potential?

David G. Stork · Accepted Answer · 2023-04-18T22:39:03.700

4

Plot3D[1 - HeavisidePi[x/116, y/116], 
    {x, -70, 70}, {y, -70, 70},
    PlotPoints -> 100, Exclusions -> None]

Plot3D[1 - HeavisidePi[x/116, y/116] + 
       HeavisidePi[x/2, y/116],
 {x, -70, 70}, {y, -70, 70},
 Mesh -> 50,
 PlotPoints -> 100, Exclusions -> None]

edited Apr 18 '23 at 22:39

answered Apr 18 '23 at 22:31

David G. Stork

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Thanks, that works! – Michael B. Heaney Apr 18 '23 at 23:06
1

Then please accept ($\checkmark$). – David G. Stork Apr 18 '23 at 23:11

Put a standalone wall barrier inside a 2D square well potential

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