Home › Forums › setting the stage › solids as quantum systems › Definition of Solid This topic has 0 replies, 1 voice, and was last updated 4 weeks, 1 day ago by sayantan. Viewing 1 post (of 1 total) Author Posts January 22, 2025 at 10:31 am #12307 sayantanParticipant A solid is the physical state of matter in which all the atoms are packed in periodic or in aperiodic manner to form a specific structure. 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