Home › Forums › setting the stage › solids as quantum systems › defination of a solid This topic has 1 reply, 1 voice, and was last updated 1 year, 2 months ago by Nan. Viewing 2 posts - 1 through 2 (of 2 total) Author Posts October 4, 2023 at 12:46 pm #9293 NanParticipant A solid is one of the basic three states of matters that retains its shape and density when not confined. October 4, 2023 at 2:23 pm #9294 NanParticipant Correction: A solid is a system of positive nuclei and negative electrons, all electromagnetically interacting with each other, and obeying the equations of motion prescribed by quantum physics. Author Posts Viewing 2 posts - 1 through 2 (of 2 total) You must be logged in to reply to this topic. Log In Username: Password: Keep me signed in Log In