Hubbard model
an approximate model used, especially in solid-state physics, to describe the transition between conducting and insulating systems
en-US/ˈhʌbɚd ˈmɑdəl/
en-GB/hʌbbɑːd ˈmɒdəl/
an approximate model used, especially in solid-state physics, to describe the transition between conducting and insulating systems