Tuesday, August 25

A Couple Questions About Particle Physics‏

Professor ------

I'm sorry to trouble you. My name is Matt Coughlan, and I have been looking for answers to these questions in articles and online, and have been unable to find answers for them. I read all of your "Research Related Postings" and you are far more of an expert about this stuff than I am. If you could either answer these, or put me in contact with someone else who would want to, it would be most appreciated.

Thank you for your time!

1) In quantum physics, if we can't know where a particle is and where it is going at the same time, then how can we know when a particle is and when it is going at the same time? Meaning, if a particle is a probability cloud in space, then could it also be a probability cloud in time? Would this be conceivably measurable?

2) If virtual pairs of particles and antiparticles are coming into existence all around us, and then immediately annihilating, then are there virtual photons (and virtual energy) too?

3) If Hawking radiation is proven right, and these virtual pairs of particles/antiparticles are spontaneously created as real particles, then where are they coming from? Is the energy used to create these particles coming from nowhere, or is the virtual energy a part of spacetime? If this virtual energy is taken away from spacetime, and this energy is somehow tied to the expansion of it, does that mean spacetime slows down around black holes?

4) Right now matter either moves a 1sec/sec through time, or it can slow down to 0sec/sec by being light, or by jumping into a black hole. Meaning that matter can accelerate and deaccelerate through time within definite boundaries. (All relative to each other, of course. We can't objectively measure this, so these numbers are flimsy, I know, since every point in spacetime has its own ruler, so we are all really moving at 1sec/sec.) Hypothetically speaking, if a particle were to be moving backwards in time (say -1sec/sec relative to us), could we even measure it? Causality is a two way street, and when A goes to B goes to C, then C can also go back to B and A. (At least for particles. Not living things, of course.)

If we can't tell the difference between particles moving forward in time, and particles moving backwards in time, then could some of the ones we already know be those particles? Namely, could antiparticles be moving backwards in time? Maybe they have a negative "time spin?" Maybe matter is t1, light is a t0, and antimatter is t-1?

Anyway, I have more questions, and if these are interesting to you, then please consider them, and let me know the answers. Thanks!

-Matt Coughlan

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