Phase cancellation with what? How does one particle cancel phase with itself? I was referring to the experiment cited to in Hawking's "A Brief History of Time", aligning with Schrodinger's Cat. Electrons impinging on a double slit produce the "wave interference phenomena". Reportedly (I haven't seen the experiment myself), decreasing the amplitude until only one electron at a time is emitted, still displays the interference pattern on the phosphor (time-exposed onto film).
As to the double slit, dear God man, it's just phase cancellation.
The act of observing which slit the electron passes through collapses the "wave equation", and the simple particle double-bell density distribution asserts (think, "machine gun spraying onto a wall through a double-slitted steel plate").
Same as Schrodinger's Cat --- the act of observing the cat collapses the "dual universes" (as Hawking proposes) and forces either the "dead-cat-Universe", or the "live-cat-Universe".
If the electron interference experiment supports "multiverse", then the two universes interact (else interference cannot assert). And that disputes the boundary condition. We must seek an equation that exists in a single Universe which explains the "dual path" of one electron.
An experiment that everyone reading this can try (which, as memory serves me, is also discussed in Hawking's book), is the polarizing filter one. Two crossed polarizers (at 90° to each other) have a through-transmission of 0%. However --- insert a third polarizer between the first two, the third at 45° to the others, and it's as if a clear window opens up. Transmission is 25%.
Hawking proposes that there are two Universes --- first comprised of polarizer #1 and #2 --- which because they are at 45° to each other, assert 50% transmission. The second Universe is comprised of filters #2 and #3, which are also at 45° to each other, so THEIR through transmission is 50%. Because the two Universes interact, the total transmission is 50% of 50%, or 25%.
Grab three pairs of polarized sunglasses (or one good pair and one disassembled pair), and instantly create the experiment. And then explain what's happening, in physics, here.
(Note --- do not use the new "Real 3D" glasses, those are circularly polarized; this experiment needs linearly polarized. The "Real 3D" glasses do have one side linear, with a birefringent (quarter-wave-retarder) layer to convert it to circular. I have no idea how they get "clockwise" and "counterclockwise", haven't bothered to sit down and do the math...)
