/sci/ - Science & Math

>>3190290
Eh... yes.

fuck yeah, summer

>Does an electron pass between two quantum states when it moves from one to another?
What does this even mean?

>>3190310

Sorry i wasn't specific. You know how an electron can only occupy specific quantum states, and it cannot be anywhere in between any two energy levels? I'm asking that if it were to absorb enough energy to bring it up to a higher energy state, does it actually pass BETWEEN the two states, even though quantum mechanics dictates that it is not possible for an electron to be there?

>when it moves from one penis to another?

I don't think this experiment has been done....

Do you mean:

Does an electron in an atom physically move between two energy levels when it changes energy state such as when it absorbs a photon?

If so, no. The regions between the 'shells' are classically forbidden regions, electron tunnels from one to the other without passing through the intervening space.

>>3190303
>retard social science major

>>3190290

No, it's NEVER between states. It's in one or the other. This also includes going physically from one point to another without ever going between.

>>3190317
*pop* and it's in the other state.
Haven't heard of theories that violate that yet, but it's at least thinkable, we've got continuous spin and weird stuff like that after all in some places

>>3190317
>even though quantum mechanics dictates that it is not possible for an electron to be there

i think you answered your own question

(the answer is no)

>>3190326

>the pseudoscience is strong in this one

tunnel through what?

>>3190326


also
>mfw when your questiong

>>3190317
Pretty sure that the more advanced descriptions of transition probabilities work this out. The simpler models by which you can produce and talk about energy levels are actually too simple to allow transitions *at all*. You need a time-varying E-field for that.

>>3190317
The electron "oscillates" between the two states until a photon is completely absorbed or emitted. It's hence in a superposition of both states but usually not indefinitely. That is also the reason why jumps between certain states are not possible: it's impossible for the electron to emit or absorb a photon.

>>3190332


quantum tunneling. learn your shit before you start questioning it.

guise guise.

just because it will never be possible to MEASURE it between states, does that really mean it can never pass between the states :O ?!

...i mean obviously it will never be a discrete particle between the states, but that doesn't mean it manages to teleport to a new state.

i confus?

ITT: QUANTUM TUNNELLING

/THREAD

>>3190329
Sure is intro QM understanding in here.

i imagine the probability of it being in the lower state decreases, and the probability for the higher state increases

>>3190303
FUCKING TRIPFAG ANSWERING A QUSETION WRONG HOLY SHIT WHY EVEN POST IF YOU DON'T KNOW THE ANSWER FUCKING TRIPFAG ANSWERING A QUSETION WRONG HOLY SHIT WHY EVEN POST IF YOU DON'T KNOW THE ANSWER FUCKING TRIPFAG ANSWERING A QUSETION WRONG HOLY SHIT WHY EVEN POST IF YOU DON'T KNOW THE ANSWER FUCKING TRIPFAG ANSWERING A QUSETION WRONG HOLY SHIT WHY EVEN POST IF YOU DON'T KNOW THE ANSWER FUCKING TRIPFAG ANSWERING A QUSETION WRONG HOLY SHIT WHY EVEN POST IF YOU DON'T KNOW THE ANSWER FUCKING TRIPFAG ANSWERING A QUSETION WRONG HOLY SHIT WHY EVEN POST IF YOU DON'T KNOW THE ANSWER FUCKING TRIPFAG ANSWERING A QUSETION WRONG HOLY SHIT WHY EVEN POST IF YOU DON'T KNOW THE ANSWER FUCKING TRIPFAG ANSWERING A QUSETION WRONG HOLY SHIT WHY EVEN POST IF YOU DON'T KNOW THE ANSWER FUCKING TRIPFAG ANSWERING A QUSETION WRONG HOLY SHIT WHY EVEN POST IF YOU DON'T KNOW THE ANSWER FUCKING TRIPFAG ANSWERING A QUSETION WRONG HOLY SHIT WHY EVEN POST IF YOU DON'T KNOW THE ANSWER FUCKING TRIPFAG ANSWERING A QUSETION WRONG HOLY SHIT WHY EVEN POST IF YOU DON'T KNOW THE ANSWER FUCKING TRIPFAG ANSWERING A QUSETION WRONG HOLY SHIT WHY EVEN POST IF YOU DON'T KNOW THE ANSWER FUCKING TRIPFAG ANSWERING A QUSETION WRONG HOLY SHIT WHY EVEN POST IF YOU DON'T KNOW THE ANSWER FUCKING TRIPFAG ANSWERING A QUSETION WRONG HOLY SHIT WHY EVEN POST IF YOU DON'T KNOW THE ANSWER FUCKING TRIPFAG ANSWERING A QUSETION WRONG HOLY SHIT WHY EVEN POST IF YOU DON'T KNOW THE ANSWER FUCKING TRIPFAG ANSWERING A QUSETION WRONG HOLY SHIT WHY EVEN POST IF YOU DON'T KNOW THE ANSWER FUCKING TRIPFAG ANSWERING A QUSETION WRONG HOLY SHIT WHY EVEN POST IF YOU DON'T KNOW THE ANSWER FUCKING TRIPFAG ANSWERING A QUSETION WRONG HOLY SHIT WHY EVEN POST IF YOU DON'T KNOW THE ANSWER FUCKING TRIPFAG ANSWERING A QUSETION WRONG HOLY SHIT WHY EVEN POST IF YOU DON'T KNOW THE ANSWER

>>3190396
Fucking anonymousfag isn't contributing anything of value

i'm not OP but i have another question
when a photon is absorbed by an electron with the right wavelength is this only improving the chance that you find the electron in a higher orbit?

i mean does every absorbed photon (with the right wavelength) excite the electron?
or does it just better the chance that we find it there

i don't know how big the probability wave of an electron is compared to the distances between the electron shells..
but something tells me that if the photon is absorbed it's energy should definitely go somewhere

>>3190358
>guise guise.
>:O
>i confus?

Please don't post this shit on /sci/, thankyou.

>>3190376
Tunneling has nothing to do with the question.

>just because it will never be possible to MEASURE it between states, does that really mean it can never pass between the states
If you can't measure it, it doesn't exist. Experiments are physical, the rest is just mathematical trickery to predict those results easier.

>>3190303

why do you even post in a science board?

and why would you use a trip for

"Eh...yes"

>If you can't measure it, it doesn't exist.

why is so hard for people to accept this?

>>3190423
Because you're not taught what science is in science class.

op here

itt: probabilities! probabilities everywhere!

thanks for answering though. Yes underage fag, and yes only basic physics knowledge. But thank you anyways.

>>3190407
>when a photon is absorbed by an electron with the right wavelength is this only improving the chance that you find the electron in a higher orbit?

I don't know what you mean by chance. If the photon has the right wavelenght, hence right energy, and is absorbed, the electron will be in a higher energetic state.

>i mean does every absorbed photon (with the right wavelength) excite the electron?
or does it just better the chance that we find it there

If the photon has enoug energy to put the electron in a higher energetic state, the electron will be in the higher energetic state after absorbtion.

>but something tells me that if the photon is absorbed it's energy should definitely go somewhere

The energy is still around, it's conserved in the higher energetic state of the electron. If the electron falls back to a lower energetic state, a photon of the same energy is re-emitted.

>>3190414
Because I was right. prove me wrong.

>>3190437

thanks for reminding me I could hide posts made by you.

>>3190317
>does it actually pass BETWEEN the two states, even though quantum mechanics dictates that it is not possible for an electron to be there?

you answered your own question in that sentence :)

>>3190428
>>3190423
Congratulations!! Now you get to prove a negative.. Why will nobody ever be able to measure it?

>>3190437
no you're wrong, here's why: Eh... no.

>>3190448
The real EK can consider her reputation annihilated.

>>3190330
I'm a bit late, but I just now opened the thread.
Continuous spin? As in non-discrete values? How/where/when was that achieved? That's a bit of a brain-fryer...

>>3190498 Continuous spin?
I've heard of some models suggesting this; it is not consensus. From my point of expertise spin is as discrete as it gets, I just wanted to say that there are many weird surprises along the way when diving deeper into QM.

Off to bed now, have a good night

>>3190530
me too, I'm very busy and very right, I will now honorably announce my leave.

>>3190530
Okay, I guess I don't have to start freaking out.
Continuous mass (which actually seems to be the case) or charge or anything like that is plausible, but spin... would be weird. But then again, how could I possibly have intuition about the quantum world?

>>3190338
Winrar is you.

>>3190290
OP, the answer to your question is actually "yes, it passes through other states." However, this is a question of quantum field theory, which only the fewest people here have any understanding of. Also, it should be qualified that "pass through" here means "there are contributions from other states." Furthermore, in this case, "states" really means terms in the coupling Hamiltonian. If any of this made sense to you, you wouldn't have asked in the first place.

So the short answer is really, "no, it does not. It may be excited to another state, in which case the switch is basically instantaneous, also known as a quantum leap."

>>3190407
Again, this is a question of field theory and depends highly on the coupling constant. Just as two protons can form a bizarre Hydrogen-like state, a photon and electron may or may not interact. This is elementary field theory, actually, and if I cracked open my books I'd probably have a specific number for you in about five minutes of scribbling. However, to really understand field theory you need a very solid grounding in quantum mechanics. That's real quantum mechanics, not popular books on what quantum mechanics means or what you read on wikipedia.

>>3190423
Just because you can't measure something doesn't mean it doesn't exist, unless you take the in-my-opinion absurd position that the only thing that is real is what you feel and think yourself. You can't measure a wave function, and yet, to say the wave function isn't real is pretty absurd. It's not just technically unmeasurable, it's fundamentally unmeasurable. I would go so far as to say that that which correctly describes our measurements is more real than what we see, hear, feel, or think.