# Bound States of Infinite Square Well

1. Jul 6, 2014

### "pi"mp

Hi all,
So I was recently set straight on the fact that bound state does *not* necessarily mean E<0 but rather is the statement that E<V(+/- infinity). So how do we apply this definition to the infinite square well where the potential at +/- infinity vanishes, and yet the bound states have positive energy?

2. Jul 6, 2014

### Jilang

The potential of the infinite square well at infinity is infinity?

3. Jul 6, 2014

### "pi"mp

oh god, yes of course. I was confusing it with the w.f. vanishing. Was very tired when i posted! thx