Register to reply

Double Slit - Post Incident Detection

by simplyred
Tags: detection, double, incident, slit
Share this thread:
Feb9-12, 05:33 PM
P: 2
Hey All,

I'm probably going to get railed for not searching hard enough for an answer to my idiotic question, but here goes anyways...

The double slit experiment results go like this [correct me if I'm wrong here]
1/ One slit open --> One band\probability dist.
2/ Two slits open --> Interference Pattern
3/ Two slits open with detector at slit --> 2 individual non-interfering bands\probability dist., essentially we've collapsed the wave function and forced the particle properties by "looking".

I hope I've understood that at least - yes?

So my question is - has anyone set up an experiment in a cold box with a thermally sensitive material for the slits and then shot hot particles one-by-one, then measured any temperature gradients across the slits after registering on the other side of the wall?

Would this be considered post-entrance detection? Will the heat signature will still be there? Is this even possible?

I'm guessing - there won't be any and we'll just get result #2? Just checking to see if this has been done or is not even required...

Thanks in advance!
Phys.Org News Partner Physics news on
Physical constant is constant even in strong gravitational fields
Physicists provide new insights into the world of quantum materials
Nuclear spins control current in plastic LED: Step toward quantum computing, spintronic memory, better displays

Register to reply

Related Discussions
'Detection' at a slit Quantum Physics 3
Absorbing Material Over a Slit in Deriving Double Slit Fraunhofer Interfernce Pattern Advanced Physics Homework 1
Young's double slit experiment (shallow slit and deep slit) General Physics 4
Double Slit/Photo Detection/Is it the SAME photon? Quantum Physics 2
Double-slit experiment when screen distance is of same magnitude of slit separation General Physics 4