Recent content by shunra

Thank you vanhees71. In the case of QED, is the above "reversal point" also the point where the best agreement with experiment is achieved?

The results of QED calcualtions are in the form of an asymptotic series in the fine structure constant. This means that if one adds too many terms, the result diverges. So what is the meaning of "18 digits accuracy" of certain QED calculations, if they can be spoiled by adding MORE loops to the...

Ok, so the beam-splitter must be much thiner in an electronic MZ interferometer (thin enough for the electrons to pass though) but as I said, this has been done before and there is no loss of coherence. I still believe that there are no large scale electronic/protonic MZ interferometers for...

mfb wrote "...it is tricky to send [electrons and protons] through solid matter without significant incoherent interaction." But electron crystalography is possible (Davisson got a Nobel for it) so it seems that, at least with the right choice of crystals, coherence is not lost in the...

I have been looking for experiments demonstrating neutron interferomerty with protons or electrons instead, and found non. Should there be any difference? I refer to experiments in which, for example, the Mach-Zehnder interferometer is cut from a single crystal.