Home › Forums › setting the stage › so what’s the problem? › why? This topic has 0 replies, 1 voice, and was last updated 1 year ago by m.hadi. Viewing 1 post (of 1 total) Author Posts December 1, 2023 at 7:37 am #10261 m.hadiParticipant Because the quantum equations get really complicated when applied to real solids and, except for some simple cases, the exact solutions are somewhat impossible to achieve. 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