Tunnelling experiments in fractional quantum hall effect: What the tunnelling quasiparticle effective charge tells about

The results above show that formula (5) despite not being consistent with modern models of the FQHE edges is a good fitting formula that allows encoding experimental data into two fitting parameters. However, one should be careful when interpreting the values of the fitting parameters. As exemplified above, the effective charge Q* given by (5) does not necessarily coincide with Q* of (3).