# De Broglie wavelength shift in gravitational fields

1. Jul 18, 2011

### e2m2a

Photons are blue-shifted as they accelerate in free-fall toward the earth. When an electron or positron is conceptualized as a wave using de Broglie's equation, are the de Broglie wavelengths of the electron or positron shortened (blue-shifted) as they accelerate toward the earth in free-fall? In other words do gravitational fields effect the quantum de broglie representation of matter-waves?

Last edited: Jul 18, 2011
2. Jul 18, 2011

### atyy

Hossenfelder wrote a nice post about an experimental demonstration of neutron wavefunctions in gravity: http://backreaction.blogspot.com/2007/06/bouncing-neutrons-in-gravitational.html" [Broken].

Last edited by a moderator: May 5, 2017
3. Jul 19, 2011

### bcrowell

Staff Emeritus
Atyy didn't quite say so explicitly, but the answer to the OP's question is yes.

4. Jul 19, 2011

### e2m2a

Thanks for the reference. I am reading it now and finding it fascinating. It will take time for me to absorb it.

Last edited by a moderator: May 5, 2017
5. Jul 19, 2011