Qubit

using CairoMakie

function tα_qubit(β, ψ1, ψ2, fα, f)
    2 + 2 * β - cos(ψ1) - cos(ψ2) - 2 * β * cos(π * fα) * cos(2 * π * f + π * fα - ψ1 - ψ2)
end
ψ1 = ψ2 = range(0, 4 * π, length=100)
z = [tα_qubit(0.61, x, y, 0.2, 0.1) for x in ψ1, y in ψ2]

fig = Figure(resolution=(600, 400))
ax = Axis(fig[1, 1], aspect=1, xlabel="ψ1", ylabel="ψ2")
cls = contour!(ψ1, ψ2, z; colormap=:plasma, levels=20, linewidth=1.5)
# Colorbar(fig[1, 2], cls, label="α-q")
limits!(ax, 0, 4π, 0, 4π)
# colsize!(fig.layout, 1, Aspect(1, 1.0))

Warning

This example was autogenerated using:

using Pkg
Pkg.status(["CairoMakie"])

Status `~/work/BeautifulMakie/BeautifulMakie/docs/Project.toml`
  [13f3f980] CairoMakie v0.10.6

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