# Harmonic Oscillator

1. Apr 19, 2013

### Abigale

Hi guys,

is there a reason why the energy of the harmonic oscillator is always written as:$$E_{n} = \hbar \omega (n + \frac{1}{2})$$
$$E_{n} = h \nu (n + \frac{1}{2})$$
???

THX
Abby

2. Apr 19, 2013

### dextercioby

It means the same, usually QM uses hbar to avoid the 2pi appearing everywhere.