  We build Floquet-driven capactive circuit networks to realize topological
states of matter in the frequency domain. We find the Floquet circuit network
equations of motion to reveal a potential barrier which effectively acts as a
boundary in frequency space. By implementing a Su-Shrieffer-Heeger Floquet
lattice model and measuring the associated circuit Laplacian and characteristic
resonances, we demonstrate how topological edge modes can nucleate at such a
frequency boundary.
