Hello,(adsbygoogle = window.adsbygoogle || []).push({});

in my lecture notes I have made a note that if V is a local potential, then <r|V|r'> is diagonal. Is this true, and how come?

It popped up with the Lippmann-Schwinger equation, and I know it's important that V is local, but does really locality implicate diagonality?

Best regards,

Jonas

**Physics Forums | Science Articles, Homework Help, Discussion**

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Local potential and diagonal

**Physics Forums | Science Articles, Homework Help, Discussion**