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Author Topic: How does a 'field' become observer dependent?  (Read 200640 times)

Offline yor_on

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Re: How does a 'field' become observer dependent?
« Reply #1175 on: 20/07/2014 16:03:46 »
Now imagine that you have a way to force the spin of one photon. You can choose it behave one specific way, 'up' or 'down'.

That's where the magic treads in.

Because, if entanglements are correct, then the other particle must adapt to this situation, even though it is spatially separated. And the common consensus is that it must do so 'instantly'
 

Offline yor_on

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Re: How does a 'field' become observer dependent?
« Reply #1176 on: 20/07/2014 16:05:11 »
you don't need entanglements to define why the spin is opposite. But you do need it for this.
 

Offline yor_on

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Re: How does a 'field' become observer dependent?
« Reply #1177 on: 20/07/2014 16:09:08 »
so what is a entanglement? A result of probability, resting on the experiment and angular conservation? I don't see how I can restrict it to just conservation laws, although those is what defines this spin in all situations described.
 

Offline yor_on

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Re: How does a 'field' become observer dependent?
« Reply #1178 on: 20/07/2014 16:15:45 »
And so it becomes as you say Ethos, a question of a equilibrium, that ignoring normal information limits ('c') demands a balance. And it doesn't matter what we do, as far as I know? The spin(s) will be opposite each other..
 

Offline yor_on

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Re: How does a 'field' become observer dependent?
« Reply #1179 on: 20/07/2014 16:17:09 »
Then again, how many spins exist? Is there only 'up' and 'down' to it? Or is that a simplification from the experiments we do.
 

Offline yor_on

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Re: How does a 'field' become observer dependent?
« Reply #1180 on: 20/07/2014 16:26:05 »
What is “spin” in particle physics? It's not the one I was thinking of originally, but it is good.
 

Offline yor_on

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Re: How does a 'field' become observer dependent?
« Reply #1181 on: 20/07/2014 16:32:25 »
Theory of strongly correlated systems. Just because I can :) And find it a interesting read. I'm not entirely sure how it connects but it should, in some way.
 

Offline yor_on

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Re: How does a 'field' become observer dependent?
« Reply #1182 on: 21/07/2014 01:59:40 »
There is another more accurate description of how it works. That one builds on the probability of a spin being 'up or 'down'. It has a 50% probability any which way, and we have no way of knowing which one it will be unless we measure. The only thing you can say with certainty is that the others particles spin must be the opposite.

Now, that is close to what I imagined before, but not exactly the same to me. But the ideas defining a entanglement today, also use so called 'weak interactions/experiments' presumed to leave this wavefunction representing the 'system' of two photons alone, without destroying it. So I think me free to apply a thought up description of what I find mysterious, and so let the spin 'change instantly' for the far away particle.

It's not perfectly correct to say that it change though, as we have a 50% probability of it already being in that state. But we know that it always must fall out that way, forcing the first spin. I think that is mysterious enough for me :)

We have two ideas here. Weak experiments, and wave functions. We also have two ideas describing why the experiment falls out as it does. Conservation laws and 'entanglements'.

When it comes to conservation laws I automatically think of 'The Heritage Of Emmy Noether.'
 

Offline yor_on

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Re: How does a 'field' become observer dependent?
« Reply #1183 on: 21/07/2014 02:25:57 »
This one may be more easily digested, and somewhat funnier. I especially enjoy 'because we are scientists' :)

Symmetries of the Laws of Physics and Noether's Theorem. 

It's truly weird that she didn't get a Nobel prise for it. You could call it a definition what makes a 'relativistic container' I think? And I will have to argue my way around this, sooner or later :) then again, there are more ways than one to define a universe, isn't there? In a good theory all correct descriptions should fit, no matter from where they come.
 

Offline yor_on

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Re: How does a 'field' become observer dependent?
« Reply #1184 on: 21/07/2014 02:37:20 »
In a way I do, by defining it as you must find a local equivalence, using that as a proof for why the universe must behave equivalently in all 'points' (locally defined). If it wasn't that way the universe would be different.
 

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Re: How does a 'field' become observer dependent?
« Reply #1185 on: 24/07/2014 19:49:03 »
So what is the meaning of life?
I don't know, do you?

To have a laugh, with some friends, before it's too late?
To come?

To kill?

What is it?
 

Offline yor_on

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Re: How does a 'field' become observer dependent?
« Reply #1186 on: 24/07/2014 19:51:08 »
I use an idea of complexity, but that isn't about individuals.
 

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Re: How does a 'field' become observer dependent?
« Reply #1187 on: 24/07/2014 19:51:55 »
To care?
 

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Re: How does a 'field' become observer dependent?
« Reply #1188 on: 24/07/2014 19:58:46 »
Do you care?
 

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Re: How does a 'field' become observer dependent?
« Reply #1189 on: 24/07/2014 19:59:55 »
Either that, or we're lost.
 

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Re: How does a 'field' become observer dependent?
« Reply #1190 on: 24/07/2014 20:05:45 »
Lost because we all need to be loved, not because we are going to revolutionize the world. Not because we have the answer to 'free energy'. Not even because we're going to leave a lot of money behind us. Just because we all need unrequited love, at some time in our life, to know that someone finds us worthy of living.

Weird stuff, isn't it?
=

Thinking a little, this day after :)

Unconditional love might be the better word here. Unrequited sounds a little too devoid of reciprocity to me, as I read myself. You should take this to heart. One should never read oneself the day after.
« Last Edit: 25/07/2014 11:57:05 by yor_on »
 

Offline yor_on

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Re: How does a 'field' become observer dependent?
« Reply #1191 on: 24/07/2014 20:06:57 »
but we will response, if the love is without demands.
That is humanity.
 

Offline yor_on

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Re: How does a 'field' become observer dependent?
« Reply #1192 on: 24/07/2014 20:09:39 »
And those without this, will be marked, by themselves, and others.
We're a pack animal.
 

Offline yor_on

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Re: How does a 'field' become observer dependent?
« Reply #1193 on: 24/07/2014 20:18:42 »
So you don't think you can change anything, do you? :)
I think you can change the world.
 

Offline yor_on

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Re: How does a 'field' become observer dependent?
« Reply #1194 on: 24/07/2014 20:20:28 »
That's my unrequited love.
And I'm counting on you.
 

Offline yor_on

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Re: How does a 'field' become observer dependent?
« Reply #1195 on: 24/07/2014 21:32:55 »
In some weird way you could say that complexity is more than just the statistics, it's about how they become. About ideals, ethics, dreams and deeply felt needs.
 

Offline yor_on

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Re: How does a 'field' become observer dependent?
« Reply #1196 on: 24/07/2014 21:41:34 »
My thesis here is that life is more than just a 'clock work orange'. Use blind fate, and statisitcs, when it's applicable, but involve intelligence, and the stuff that makes us believe, and I would expect the statistics to change. The coin is no longer 'fair'.
 

Offline yor_on

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Re: How does a 'field' become observer dependent?
« Reply #1197 on: 24/07/2014 21:43:39 »
You can ignore this, but on your own peril. Because doing it should invalidate any ideas of a progress.
 

Offline Ethos_

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Re: How does a 'field' become observer dependent?
« Reply #1198 on: 24/07/2014 23:54:17 »
Lost because we all need to be loved,

Very true my friend. But there is one more thing we need even more than to be loved. We need to start loving others ourselves.
 

Offline yor_on

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Re: How does a 'field' become observer dependent?
« Reply #1199 on: 25/07/2014 12:06:46 »
It's probably so that we can't Ethos, not all, and not everywhere. And I'm not even sure that I would want it? Some individuals actions speaks against them too such a degree, think of war crimes for example. Even without this security of 'knowing love', you should still have ethics to guide you.
 

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Re: How does a 'field' become observer dependent?
« Reply #1199 on: 25/07/2014 12:06:46 »

 

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