Tuesday, March 12, 2013

What's The Difference?

OK, I have two figures here for you:



Other than the orientation and the pixel density, can you tell what is what in these two, and what are the differences?


What if I tell you that one is a 2-slit interference experiment using single electrons, while the other is a 2-slit interference experiment using single photons. Can you tell which is which?

You are not at fault if you can't, because I won't be able to either, just from looking at the figures. Figure A is the single-photon interference experiment, while Figure B is the single-electron interference experiment (G. Matteucci et al., Eur. J. Phys. v.34, p.511 (2013)). The effects look the same for both.



Anonymous said...

That's volume 34, 511 (2013). One web link to it is

Elovelo said...

I cant imagine how is it possible to make a interference experiment with photos ;-)