{"id":343125,"date":"2024-01-04T10:14:39","date_gmt":"2024-01-04T10:14:39","guid":{"rendered":"\/forum\/forums\/topic\/compasison-between-fdtd-and-quantum-mechanics\/"},"modified":"2024-01-04T10:14:39","modified_gmt":"2024-01-04T10:14:39","slug":"compasison-between-fdtd-and-quantum-mechanics","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/compasison-between-fdtd-and-quantum-mechanics\/","title":{"rendered":"Compasison between FDTD and quantum mechanics"},"content":{"rendered":"

Hi all,<\/p>\n

I am using ‘Lumerical FDTD’ to simulate a structure involving metallic spheres. I observed that when the separation between spheres is decreased, the peak extinction cross-section gradually redshifts. But when the separation was less than 0.5 nm, the absorption started blueshifting. This blueshifting for smaller separations is quantum mechanically explained through the tunneling of charges.<\/p>\n

I wonder how this tunneling can be explained through classical FDTD simulations. I want to know whether there is any analogy between quantum mechanics and Lumerical FDTD simulations. Otherwise, can this blueshifting be explained through classical FDTD?<\/p>\n

Please help me understand this.<\/p>\n","protected":false},"template":"","class_list":["post-343125","topic","type-topic","status-closed","hentry","topic-tag-absorption-1","topic-tag-cross-section","topic-tag-lumerical","topic-tag-LumericalFDTD-1","topic-tag-metal","topic-tag-photonics","topic-tag-scattering"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t