Reply To: Compasison between FDTD and quantum mechanics

[Afroditi Petropoulou]

Dear Debasish,

Since you mentioned a separation between the spheres of less than 0.5nm, could you please tell me what is the mesh size that you have used? If the mesh is not fine enough, maybe the two spheres are touching each other. In this case the result that you get is probably a numerical error.

Considering the simulation is correct (the mesh grid is fine enough) the blueshift could be possibly observed due to very strong coupling between the spheres. The tunneling effect though cannot be simulated with FDTD.

Best Regards,

Afroditi