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bio website johngraybosch.com
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visits member for 1 year, 5 months
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I'm an Application Developer in Long Island, NY.


May
17
comment Is it possible to use quantum mechanics for an effective time based encryption?
Maybe consider asking this question on the cryptography stack exchange...
May
17
comment Is it possible to use quantum mechanics for an effective time based encryption?
It took some thinking and researching but I understand the motivation behind his question also. It's a good question. This question crypto.stackexchange.com/questions/606/… gives more background on Time-based crypto. The only thing I can think of in QM that is 'predictably' time-dependent is radioactive decay...
Apr
24
awarded  Popular Question
Mar
11
comment Why does Quantum Electrodynamics Allow a Photon to Exist Temporarily as a Positron and an Electron?
I understand it's "allowed" but not where the rules come from that allow it... I'm missing something fundamental about why the photon would do this and not just stay a photon...
Mar
11
asked Why does Quantum Electrodynamics Allow a Photon to Exist Temporarily as a Positron and an Electron?
Mar
11
comment Why does a photon colliding with an atomic nucleus cause pair production?
Accepted because of the nice explanation of the electron-positron virtual particle situation with the photon. I think I'm going to ask a more pointed question about this soon. Thanks!
Mar
11
accepted Why does a photon colliding with an atomic nucleus cause pair production?
Mar
11
comment Why does a photon colliding with an atomic nucleus cause pair production?
This looks like a book about non-mainstream physics... Not the best way to answer a question about mainstream physics.
Mar
11
comment Why does a photon colliding with an atomic nucleus cause pair production?
@dmckee Right, I'll keep that in mind for the next question. I tend to do that in my questions I guess. I think I'm trying to create a picture of the gap I'm trying to fill. Asking multiple questions, to me, helps define the gap. But it also makes it harder to answer as you said. I'll try to be more to-the-point next time.
Mar
8
comment Why does a photon colliding with an atomic nucleus cause pair production?
Can you expand on this part? "However, if an atomic nucleus is near by, then it is possible that a second photon coming from the nucleus can separate the two particles, before they annihilate again to give the original photon that generated them. I.e. the Coulomb field of the nucleus “pushes” the positron away, while it “pulls” the electron towards it. Hence the two particles became real, and can be guided into magnetic fields for storage and further use." Thanks!
Mar
8
comment Why does a photon colliding with an atomic nucleus cause pair production?
@twistor59 I guess if we could understand the "why", we'd have a much deeper understanding of Physics...
Mar
8
comment Why does a photon colliding with an atomic nucleus cause pair production?
@twistor59 So do we not have an answer for the "why"? Just a mathematical model that can predict the events we observe?
Mar
8
comment Why does a photon colliding with an atomic nucleus cause pair production?
Nice explanation, but all of that explains the "how" but not the "why". Why does a photon "split" into an electron and positron, and not just bounce off the nucleus? There's something more fundamental here... Does science have an explanation for this?
Mar
8
asked Why does a photon colliding with an atomic nucleus cause pair production?
Dec
12
awarded  Yearling
Nov
20
comment CPT Violation and Symmetry / Conservation Laws
So what is the "far more abstract quantity" that T-Symmetry refers to?
Nov
20
accepted CPT Violation and Symmetry / Conservation Laws
Nov
19
comment CPT Violation and Symmetry / Conservation Laws
Disclaimer: I'm not a math guy. If you could provide a conceptual explanation, I'd very much appreciate it, though.
Nov
19
asked CPT Violation and Symmetry / Conservation Laws
Sep
23
accepted Accelerating expansion of the universe and cyclic model