An Infinite Sea of Antimatter - Ask a Spaceman!
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- เผยแพร่เมื่อ 15 ม.ค. 2019
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Why is matter and antimatter symmetric? What happened in the early universe to make matter win? Do we have any clue as to why? What do puppies have to do with it? I discuss these questions and more in today’s Ask a Spaceman!
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Keep those questions about space, science, astronomy, astrophysics, and cosmology coming to #AskASpaceman for COMPLETE KNOWLEDGE OF TIME AND SPACE! Music by Jason Grady and Nick Bain. - วิทยาศาสตร์และเทคโนโลยี
What an incredible way to explain incredible things.
Now the next inevitable question is: "Why is there more matter than antimatter in the observable Universe?"
I've NEVER heard this metaphor or "anti-matter" being holes below the ground state. Thank you very much for this.
you probably dont give a shit but if you are stoned like me atm you can watch all of the new movies on InstaFlixxer. Have been streaming with my girlfriend recently :)
@Ryland Ethan yup, I have been using instaflixxer for since december myself :D
What a coincidence! I was with my father’s sister and all her friends, the other day, all telling stories too. It was like being surrounded by auntie natter.
Good one. I approve of this comment ^_^
Matter and antimatter always come in pairs. That leaves the question where the partners of all our visible matter are hidden.
TY I had heard of the Dirac sea & thought it was super interesting but no one explained it properly & skilfully like you.
A covalent bond after a couple of drinks? Love it.
Paul Dirac predicted antimatter (mathematically) in 1928; my father, Carl David Anderson, discovered antimatter in 1932 and won the Nobel Prize in Physics in 1936 for his discovery. -- Dave Anderson December 2019.
Wow, so a positron is kinda like the shadow of it's electron left back in sublevels. Great talk again.
Keep'em coming, professor!
Being the first and only one watching makes me feel special...like a vip sneak peek
Don't get so excited, you'll emite a photon
So in essence, a positron is the absence of an electron in the sea of electrons below the ground state?
Exactly. Insane, isn't it? :-)
Duuude that's a beautiful picture. I love it. Thank you.
I had simply studied the concept of dirac sea as a kind of roadblock arising from klein gordon equations 2nd order temporal part. And to fix the problem dirac hamiltonian came and dirac equation. Ofcourse professor talked about the dirac sea interpretation just a few days back but to me it sounded bizzare. like a sea of Infinite no of negative energies states! I could not wrap my head around it at that time. But yours way of telling things made it lot easier. And now i understand it better. Thanks.
I love these videos on particle physics.
"I don't have fifteen fingers." Thanks for sharing such a personal info with us 😇
blew my mind, thanks!
They used to teach electrons flow in one direction and holes flow in the opposite direction in a copper wire.
Just reading this section in your book last night!
I don't understand how the absence of an electron in an underground state equals a positron. A positron has the same mass as that of an electron, but the hole doesn't have any mass.
And also, when there is a hole underground, isn't it more likely for an electron in another underground state above it to fill the hole, rather than the same electron making its way back where it started ?
I dont think there is a real "ocean" of anti particles bellow the level of minimum energy. What the Math is describing is the exchange of matter/antimmater and that is why particles/antiparticles need to shift places.
That last bit about negative energy sounds like a possible explanation for dark matter?!
One infinity is all it takes to unleash the beast, any one will do. Or negative one? Great video Paul.
Nice images! Still very unexplained 😀 Was it Heisenberg's Uncertainty that broke the matter-antimatter symmetry?
when electrons (- charge) flow, they generate a magnetic field with positive and negative poles. When positrons (+ charge) flow, what do they generate? I assume a magnetic field with a reversed right-hand rule. How is that a hole in the ground state? Isn't it easier to just think of these as differently interacting QED fields?
So when a gamma ray creates an electron and positron and then the two annihilate each other does the annihilation create another gamma ray with the same energy as the original gamma ray? Or is there some loss of energy somewhere. I'm thinking maybe some loss through momentum when the gamma ray produced two particles which would have mass.
Hi Paul. What about turning all the matter of an object into energy, storing that energy in some kind of battery, then using lasers to recreate the object? I had a dream about it. It seems like it would work but maybe take a huge battery and a lot of energy to recreate the object?
So if we take this metaphor to the extreme (which we probably shouldn't), could the following scenario happen? :
Say you have an electron in the ground state. You fire a photon at it with energy exactly equal to the ground state plus the first excited state. Assuming this doesn't correspond to the energy of any positive state transition, it can only be fully absorbed by one of the "subterranean" electrons. This results in: an electron in the ground state, an electron in the first excited state, and a "hole" in the the first negative state (positron in its ground state?). Eventually the ground state electron/positron annihilate, releasing the energy of two ground states.
Is this distinguishable from an electron only absorbing part of a photon's energy to become excited, and re-emmiting the excess? Can the latter happen (doesn't that violate QUANTUM 'uptake')? What are the chances of a "subterranean" electron being excited, rather than a positive-stated one?
I've never heard anyone make electrons sound sleazy before. This is an achievement sir.
I heard a long time ago, maybe 10 years ago or so, that scientists were talking about doing calculations with "electron holes" in quantum computers is this a different phenomenon or should they have just said they were trying to make Data's positronic brain?
never mind, turns out Wikipedia has a nice article describing the quasiparticle in an article titled "Electron hole". I enjoy the content, thanks!
Cant wait you show me an item made of anti-matter !!
wait ?!? you cant ??
I guess the question is when matter and antimatter meet they become energy and when that energy disappears, it becomes matter and antimatter in equal pair. So is this a special kind of energy or is this energy the same type as what Einstein is talking about in, "E=MC²"? Does the M in Einstein's equation contain matter and antimatter or just matter? Would there be an antimatter form of "E=MC²"? like E=AMC², (AM as an antimatter C²" ?. In that Energy disappear and becomes antimatter and vise versa...?.
So here seem to be 3 types of scenarios. Energy one converts back and forth to matter. Energy two converts back and forth matter and antimatter. Energy 3 converts back and forth to antimatter. What do you have to say to all of this brainstorming that is going on in my head?
Is negative energy and negative gravity the same thing? Why doesn't the positron have negative gravity. Is negative energy and negative mass related in the same way that energy and mass are related?
So is there an alternate universe where an electron is the hole between negative and positive states that positrons pass through ?
Very cool....Of course if use anti-matter in combination with Di-lithium crystals you can create "warp drive" :-)
Antimatter matters
What happened to the puppies? It made much more sense when they were puppies!
I've got a hole in me pocket.
Does it happen to be, by any chance, the size of an electron?
I've got an electron burning a hole in me pocket!
8:40 why would the "hole" have the properties of a positron?
a998, I don't know, but also it doesn't make sense when the bloke said we shoot down an electric bolt to lodge some electron our of that infinite sea and that would leave a hole? Surely the electron in that bolt of energy would replace the electron that was nudged out, wouldn't it? Also I think there isn't an infinitive sea of electrons or positrons, rather an infinite see of coupled electrons and positrons, as they attract each other. Let's call the pozelectrons. They would be of course appear to us or our measuring instruments invisible, due to their neutral combined charges. When the LHC smashes high energy particles into another one, that may break that very strong bond and for a fraction of second and seemingly produce some particles out of nothing. But we know for sure that the word "nothing" is meaningless, because it cannot exist by definition, right? So that would explain a lot of problems like dark matter and dark energy...
Will the antimatter drives ever be possible? How long will it get to build them if they are possible?
@@JosefZila ,
So we can't build an antimatter drive yet
We will have to stick to the infinite improbability drive for now...
It's 'lectrons all the way down.
Now this was a truely hole-some video.
Wow. As a layman just watching physics stuff on youtube for fun you just peaked my interest. You took me to an elevated state of energy. All this anti-matter talk always seemed like magic smoke: something smart guys defined in the math that didn't make much sense in the real world. You made anti-matter start to make a little sense. And if it makes sense to me, the elevated energy state, then there's going to be some super smart physics phD appear spontaneously in the comments telling you how you're full of crap. The really smart ones seem to be annoyed when guys like you try to make it make sense to dummies like me. He would be my anti-matter counterpart. The really low energy state. A hole in this comment board. Our comments will likely smash together, release a little energy, and light will shine. :D
Hey, glad you learned something from the episode! Also, I have a PhD in Physics. So there :)
The question is - is it a story or not? Does radiation spontaneously split into matter/antimatter pairs then recombine? How is this known?
Something that pisses me off about physics is during the 1960's, a bunch of LSD heads decided to use terminology that was designed intentionally to confuse students. Well, it screwed up the education in the United States - but not Russia, which didn't play with the weirdest possible interpretations at all times.
Well a picture is nice to "picture" things, but it might have nothing to do with reality.
🫀🦠🫀
Dear Mr. Sutter. Like your videos. But please keep autofocus of your camera off or get rid of the microphone. It is fundamentally disturbing.
Deep below the ground state ... the deep state. LOL.
The whole description smells of math which is hardly surprising.