Double slit experiment IN TIME

[marlon]

Double slit experiment IN TIME !

The famous double slit experiment performed in another way ... The slits are not in space but in time : two positive peaks and one negative peak of an electric field contained in a very short laser pulse...


https://www.physicsforums.com/journal.php?s=&journalid=13790&action=view

marlon

 

[Hans de Vries]

The famous double slit experiment performed in another way ... The slits are not in space but in time : two positive peaks and one negative peak of an electric field contained in a very short laser pulse...


https://www.physicsforums.com/journal.php?s=&journalid=13790&action=view

marlon

I was looking at this. There are several related talks on video in the link
below about the equipment used, very interesting!

http://itamp.harvard.edu/attosecond/attosecond.html

especially the talk of Paulus here:

http://cfa-www.harvard.edu/dvlwrap/itamp/0311/paulus.ram

(Uses the Realplayer plug-in which you can download for free)


Regards, Hans

 

[gptejms]

There was a discussion on this a few months back in the thread 'Interference in time' in the 'theory development' forum.I am including here something that I wrote in one of my posts there:-

Diffraction in time domain is possible in the following sense---you have a screen blocking a matter wave which is suddenly removed(constituting an edge in time).Then there is a finite probability of finding the particle at a point distance d away in a time different from d/v,where v is the speed of the particle.In fact such a calculation has been done(see Phys. Rev. A,? & Zeilinger,3804-3824,1997)--the basic reason is fast spreading of matter wave-packets due to the presence of high momentum (Fourier)components (constituting the (sharp) wavepacket)--so the probability density reaches out faster than the speed of the particle.Such an effect is absent in the case of classical wave-equation(light) as there is no dispersion in free space.

Jagmeet

 

[anuj]

I had started a thread 'Interference in Time' on this topic last year
www.physicsforums.com/archive/topic/t-33217_Interference_in_time.html