Home › Forums › setting the stage › solids as quantum systems › Solid definition This topic has 0 replies, 1 voice, and was last updated 1 year, 8 months ago by tapashreepradhan. Viewing 1 post (of 1 total) Author Posts April 11, 2023 at 10:12 am #8480 tapashreepradhanParticipant Solid is the state of matter where the attoms are arranged in fixed lattice units repeated infinitely throughout the space. Author Posts Viewing 1 post (of 1 total) You must be logged in to reply to this topic. Log In Username: Password: Keep me signed in Log In