It looks like you're using an Ad Blocker.
Please white-list or disable AboveTopSecret.com in your ad-blocking tool.
Thank you.
Some features of ATS will be disabled while you continue to use an ad-blocker.
originally posted by: dragonridr
a reply to: ImaFungi
Im thinking you are at an impasse you dont want to look into experiments and chose not to believe the results. You dont want to do the math so you can understand how we would know hidden variables existed. And you dont understand what hidden variables are and once again they wouldnt be random if they were no need for hidden variables. So until you decide to make some effort towards learning about physics your stuck where you are alot of questions no answers.
originally posted by: dragonridr
a reply to: ImaFungi
Im thinking you are at an impasse you dont want to look into experiments and chose not to believe the results. You dont want to do the math so you can understand how we would know hidden variables existed. And you dont understand what hidden variables are and once again they wouldnt be random if they were no need for hidden variables. So until you decide to make some effort towards learning about physics your stuck where you are alot of questions no answers.
To observe behavior via experimental results is to know something, but not necessarily everything. We can say this for gravity and entanglement, that they are both understood to an extent, but not completely.
originally posted by: ImaFungi
Do you know how entanglement works?
This is like the "does a photon have mass?" question. It's probably impossible to prove the photon's mass is zero, and it may be impossible to prove "instantaneous" because there will always be limitations in our measurements. All we can hope to do is put lower and lower limits on the photon mass and the temporal separation of quantum entanglement events. The last research I saw claimed the entanglement operated at least 10,000 times faster than the speed of light, but made no claim about whether it was instantaneous or not.
Does the information from one particle transfer to another particle INSTANTANEOUSLY?
So is the spooky action at a distance associated with entanglement actually instantaneous, or does it simply has a very large propagation speed?...a number of factors go into the interpretation of the results, which reduce the lower limit of the speed of entanglement influence to about 10,000 times the speed of light.
Notice that this result does not eliminate the possibility that the influence of entanglement actually is instantaneous – it merely sets a limit saying how close the influence must be to infinitely fast.
Nature tells us how it behaves. Not the other way around; you can try to tell nature how to behave, but it won't obey you.
There can be no such thing as instantaneous, so right there you know there are variables hidden.
Maybe or maybe not to both. Bell's tests concern LOCAL hidden variables, not all hidden variables.
There is information unknown about how entanglement functions. That is hidden variables.
It's not apparent that you understand it, because it doesn't imply the things you seem to think it does. The interpretation doesn't claim that QM is complete. What does it claim?
You denying the existence of hidden variables is the same as saying you have complete understanding of what entanglement is and how it works, this is false.
I understand bells inequality theorem, it is false, it is a faulty arguement.
In experimental tests following Bell's example, now using quantum entanglement of photons instead of electrons, John Clauser and Stuart Freedman (1972) and Alain Aspect et al. (1981) convincingly demonstrated that the predictions of QM are correct in this regard. While this does not demonstrate QM is complete, one is forced to reject at least one of the principles of locality, realism, or freedom
originally posted by: ErosA433
a reply to: ImaFungi
Just want to point out the following. Being unable to understand an argument due to personal ignorance does not mean your original proposition is correct.
originally posted by: Arbitrageur
This is like the "does a photon have mass?" question. It's probably impossible to prove the photon's mass is zero, and it may be impossible to prove "instantaneous" because there will always be limitations in our measurements. All we can hope to do is put lower and lower limits on the photon mass and the temporal separation of quantum entanglement events. The last research I saw claimed the entanglement operated at least 10,000 times faster than the speed of light, but made no claim about whether it was instantaneous or not.
Quantum "spooky action at a distance" travels at least 10,000 times faster than light
So is the spooky action at a distance associated with entanglement actually instantaneous, or does it simply has a very large propagation speed?...a number of factors go into the interpretation of the results, which reduce the lower limit of the speed of entanglement influence to about 10,000 times the speed of light.
Notice that this result does not eliminate the possibility that the influence of entanglement actually is instantaneous – it merely sets a limit saying how close the influence must be to infinitely fast.
Nature tells us how it behaves. Not the other way around; you can try to tell nature how to behave, but it won't obey you.
Maybe or maybe not to both. Bell's tests concern LOCAL hidden variables, not all hidden variables.
It's not apparent that you understand it, because it doesn't imply the things you seem to think it does. The interpretation doesn't claim that QM is complete. What does it claim?
Bell's theorem
In experimental tests following Bell's example, now using quantum entanglement of photons instead of electrons, John Clauser and Stuart Freedman (1972) and Alain Aspect et al. (1981) convincingly demonstrated that the predictions of QM are correct in this regard. While this does not demonstrate QM is complete, one is forced to reject at least one of the principles of locality, realism, or freedom
originally posted by: dragonridr
a reply to: ImaFungi
Ok lets start with i think your a bit confused about entanglement.So first lets just look at two particles from a classical interpretation. Think of two particles (which repel one another) on a collision course as viewed in their center-of-mass frame. If the particles are directed perfectly "head-on", each one will bounce back in exactly the opposite direction. this will mean their spin and velocity are entangled. This means we can measure one and know the other this is a very basic example and their are other ways to create entanglement but this is the easiest to visualize.
Entanglement at its most basic means a particle may have the same spin and momentum only direction would be different.
So this is basic entanglement than we thow QM into the mix and we get a weird result this has to do with wave functions like i tried to explain to you in previous experiment.
But i can come back to this to explain i want to clarify something for you entanglement doesnt mean they change states or even information is being transferred. What does happen is the entangled particle acts as if we measured it even if we didnt. In other words the wave function breaks down and acts as a particle instead of a wave even though if we didnt observe it we get different results.
Now for your question there can be opposite states created im not sure what question you think your asking?
Quantum mechanics is such a description. There is some debate on exactly how quantum mechanics should be interpreted
originally posted by: ImaFungi
The term instantaneous, would only imply, that an entangled particle, is physically the same object as its entangled partner, and that when you move one of the particles, 'you are not actually moving it'. Please explain how a reality might exist that this is physically hypothetically and/or theoretically possible?
I don't understand why you're making such a distinction here about whether it's instantaneous or not, because it's interesting either way. I disagree that if it's instantaneous it's the same particle. This is an argument that you have decreed what is and is not possible for nature to do, and you're not in any position to make such a decree since you're not god.
If it is not instantaneous, then you MUST ADMIT, that there is some physical structure, some means as to how the information or influence occurs. I am not saying you must know how it occurs or what the structure is, but you must admit that 'there is some reason' why it occurs at the speed it does, and not infinitely faster or slower. This is admitting there exists truth, that you are ignorant of the full enlightenment of. Do you understand this? This is Newton saying, I know a phenomenon of gravity exists, but I dont know everything about it. That which Newton did not know about gravity, were hidden variables, of his knowledge.
I think you are using that term "hidden variables" in a way in which it's not typically used so I'd advise against that. If you mean we aren't sure of the correct interpretation of QM, and therefore our knowledge is incomplete in that respect then it would be more clear to say that, then to refer to "hidden variables".
The fact you do not know everything about entanglement, is the fact that there are variables hidden from your knowledge. If you were to know that knowledge, there would be no hidden variables.
See, this is what I mean by saying it comes down to an interpretation of quantum mechanics. My understanding of the many worlds interpretation is that they are. The Copenhagen interpretation says they aren't. We haven't figured out a way to prove which of these interpretations are correct.
I am trying to argue what nature, or your experiments have told you to tell yourselves. How do you know that when an entangled pair of particles are created, 2 particles with opposite states arent created? HOW DO YOU KNOW THAT, ANSWER THAT QUESTION RIGHT THERE.
The quantum-mechanical "Schrödinger's cat" paradox according to the many-worlds interpretation. In this interpretation, every event is a branch point; the cat is both alive and dead, even before the box is opened, but the "alive" and "dead" cats are in different branches of the universe, both of which are equally real, but which do not interact with each other.
non-locality is an odd descrition of something that's local.
Even non locality would be local.
As I said and posted a paper explaining, the MWI says entanglement is local, but even though the MWI has a fully local explanation, it has other issues.
No, this sort of argument is silly. Please answer my questions, importantly, how you know that when an entangled pair of particles are created, 2 particles with opposite states arent created?
QM says, 2 particles with superposition states, meaning each being both head and tails, exist, and that when we measure them they are definite and opposite. And then they measure, and say, yes they are definite and opposite, information must have traversed them instantly, how do you know, when you create 2 particle pairs, 2 entangled particles, they are not opposite states the entire time, and that when you measure them, you measure that they are opposite states?
Nor a physics textbook I bet.
originally posted by: Nochzwei
Don't have time to read all the walls of text.
Decoherence of entanglement in the body happens so quickly that it's probably not relevant to biological processes according to Max Tegmark:
But briefly 2 QE particles need not have different states. Place 2 particles in the same magfield for some time and they will quantumentangle. Like electrons in your body are qe
So I don't know why people even consider the entanglement in say human tissue when decoherence happens so rapidly as to make it mostly irrelevant to anything I can think of.
Based on a calculation of neural decoherence rates, we argue that that the degrees of freedom of the human brain that relate to cognitive processes should be thought of as a classical rather than quantum system, i.e., that there is nothing fundamentally wrong with the current classical approach to neural network simulations. We find that the decoherence timescales ~10^[-13]-10^[-20] seconds are typically much shorter than the relevant dynamical timescales (~0.001-0.1 seconds), both for regular neuron firing and for kink-like polarization excitations in microtubules.
originally posted by: Arbitrageur
Quantum mechanics is such a description. There is some debate on exactly how quantum mechanics should be interpreted
I don't understand why you're making such a distinction here about whether it's instantaneous or not, because it's interesting either way. I disagree that if it's instantaneous it's the same particle. This is an argument that you have decreed what is and is not possible for nature to do, and you're not in any position to make such a decree since you're not god.
I think you are using that term "hidden variables" in a way in which it's not typically used so I'd advise against that. If you mean we aren't sure of the correct interpretation of QM, and therefore our knowledge is incomplete in that respect then it would be more clear to say that, then to refer to "hidden variables".
See, this is what I mean by saying it comes down to an interpretation of quantum mechanics. My understanding of the many worlds interpretation is that they are. The Copenhagen interpretation says they aren't. We haven't figured out a way to prove which of these interpretations are correct.
non-locality is an odd descrition of something that's local.
See the reference to Yanhua Shin's paper "quantum entanglement" below, or better yet see the paper.
originally posted by: ImaFungi
No quantum mechanics does not give a description as to how information can transfer between two particles instantly or 10,000 times the speed of light. Can you tell me in a sentence what the description is, is it like; There is a field that exists that connects the two particles, like the EM field is the force carrier between electrons, and this entangled particle field carries the force or information 10,000 times the speed of light, or it carries the information instantly. Is that the QM description?
Not exactly the same but in some sense not separate entities, again see the reference below.
Because the only way something can be 'truly instantaneous' if it is 'the same object, attachment in some way.
I think you'd be spending your time better taking a physics course and actually doing some experiments, rather than denying experimental results of experiments you don't understand and then making seemingly irrelevant suppositions, or at least I don't see the relevance of the Earth's movement through space with regard to entanglement experiments.
Also the other reason I thought that entanglement could actually be true, may have to do with the fact of the earths movement through space.
I never suggested otherwise and I don't assume any one person is right, but at least I can admit some people who have specialized in a field for years or decades know more about it than I do. Before I can show that they are wrong about something I have to close a very large gap in my personal ignorance of not having worked in that field for decades. You on the other hand can deny the results of experiments that people perform, experiments you don't even understand, and when I point this out you accuse me of having reading comprehension issues. No, my reading comprehension is fine; you basically suggested the experimenters don't know what they are doing, but it's apparent this observation is made from complete ignorance since you've never even tried to do the experiment and you're obviously not really familiar with it.
Just because you think something, doesnt mean its right. I am very weary of what you think, I am questioning your beliefs, I can not so religiously accept them. I do not think smart men are infallible, especially book smart ones.
I never said I liked it myself, in fact I said I didn't like it, but your questions insist on having some kind of locality and if the answer to your question is that interpretation provides the locality you seek, why shoot the messenger? It's not my personal favorite. But if you don't like that interpretation, the other popular interpretations are non-local.
Dont ever use the many world interpretation when speaking to me again please. You have brought it up at least 3 times.
Again you are speaking from ignorance here. What I can say is these concepts are subtle and physicists work hard to communicate the subtleties and exact conditions related to their usage of terminology, efforts which you cavalierly discard without even understanding all the subtle meanings in these definitions.
um, exactly, thats my point, its a human description, made up. Even something you call non local, has entirely local, reasons for occurring.
Possibly a way to understand entanglement is to avoid looking at relativity theory altogether, and not to think of two entangled entities as particles “sending a message” from one to the other. In a paper entitled “Quantum Entanglement,” Yanhua Shih argues that because two entangled particles are (in some sense) not separate entities, there is even no apparent violation of the uncertainty principle, as EPR had suggested.
Entangled particles transcend space. The two or three entangled entities are really parts of one system, and that system is unaffected by physical distance between its components. The system acts as a single entity.
...to truly understand what entanglement is and how it works is for now beyond the reach of science.
For to understand entanglement, we creatures of reality depend on “elements of reality,” as Einstein demanded, but as Bell and the experiments have taught us, these elements of reality simply do not exist. The alternative to these elements of reality is quantum mechanics. But the quantum theory does not tell us why things happen the way they do: why are the particles entangled? So a true comprehension of entanglement will only come to us when we can answer John Archibald Wheeler’s question: “Why the quantum?”
originally posted by: Arbitrageur
I think you'd be spending your time better taking a physics course and actually doing some experiments, rather than denying experimental results of experiments you don't understand and then making seemingly irrelevant suppositions, or at least I don't see the relevance of the Earth's movement through space with regard to entanglement experiments.
I never said I liked it myself, in fact I said I didn't like it, but your questions insist on having some kind of locality and if the answer to your question is that interpretation provides the locality you seek, why shoot the messenger? It's not my personal favorite. But if you don't like that interpretation, the other popular interpretations are non-local.
Again you are speaking from ignorance here. What I can say is these concepts are subtle and physicists work hard to communicate the subtleties and exact conditions related to their usage of terminology, efforts which you cavalierly discard without even understanding all the subtle meanings in these definitions.
um, exactly, thats my point, its a human description, made up. Even something you call non local, has entirely local, reasons for occurring.
Possibly a way to understand entanglement is to avoid looking at relativity theory altogether, and not to think of two entangled entities as particles “sending a message” from one to the other. In a paper entitled “Quantum Entanglement,” Yanhua Shih argues that because two entangled particles are (in some sense) not separate entities, there is even no apparent violation of the uncertainty principle, as EPR had suggested.
Entangled particles transcend space. The two or three entangled entities are really parts of one system, and that system is unaffected by physical distance between its components. The system acts as a single entity.
...to truly understand what entanglement is and how it works is for now beyond the reach of science.
For to understand entanglement, we creatures of reality depend on “elements of reality,” as Einstein demanded, but as Bell and the experiments have taught us, these elements of reality simply do not exist. The alternative to these elements of reality is quantum mechanics. But the quantum theory does not tell us why things happen the way they do: why are the particles entangled? So a true comprehension of entanglement will only come to us when we can answer John Archibald Wheeler’s question: “Why the quantum?”
We do see a slight blue shifting of the CMB (Cosmic microwave background) in one direction, and a slight red-shifting in the opposite direction, due to the motion of the Earth through space (which includes of course the motion of the sun since the Earth orbits the sun), but the CMB is an external reference frame. Entanglement experiments done in an Earth reference frame may not use such an external reference frame.
originally posted by: ImaFungi
The earths movements are important potentially, because every time we measure light, we are measuring it using atoms that are moving (in at least 4 different ways, rotating, revolving around sun, revolving around galaxy, traveling with galaxy through space) relative to light, which when created propagates in all directions.
What is the problem with that?
I skimmed a few papers by that guy you mentioned, and he even right off the bat speaks about light radiating in spheres, as I assumed.
It would be better to cite a specific example of what you have a problem with than to speak in generalities. I know the full moon is a 3D object but to me it looks 2D to my naked eye and in photographs. The first time I saw the moon through a telescope, I remember thinking that it looked different, like a 3-D object, because there was enough detail to see craters and their shadows as 3-D features.
Something he also has no problem speaking of which I hate, is speaking of 1-d things and 2-d as if they are or can be real. I am of the judgement that they cant, try and give me one argument as to how something that is 2-d can exist in the universe, if you disagree with me.
As I said the exact usage is subtle and depends on complex factors so any oversimplification will be incomplete, but with that in mind, here is a simplified description of the concept of locality:
Saying "uhhhh...hmmmm......its....ummmm....its non local". Is not the same as saying "it might be non local because non local means ____________________". "It might be non local in the way that the term non local means ___________________"
So if that describes locality (they even used your moon example!), influences which are bounded by the speed of light, then non-locality would involve influences exceeding the speed of light, which that paper argues are likely infinitely fast in the case of entanglement (instantaneous). Again these descriptions are neither formal nor complete. Here is a somewhat more formal explanation in the context of relativity:
Our intuitive understanding of correlations between events relies on the concept of causal influences, either relating directly the events, such as the position of the moon causing the tides, or involving a past common cause, such as seeing a flash and hearing the thunder when a lightning strikes. Importantly, we expect the chain of causal relations to satisfy a principle of continuity, i.e., the idea that the physical carriers of causal influences propagate continuously through space at a finite speed. Given the theory of relativity, we expect moreover the speed of causal influences to be bounded by the speed of light.
Locality is one of the axioms of relativistic quantum field theory, as required for causality. The formalization of locality in this case is as follows: if we have two observables, each localized within two distinct spacetime regions which happen to be at a spacelike separation from each other, the observables must commute. Alternatively, a solution to the field equations is local if the underlying equations are either Lorentz invariant or, more generally, generally covariant or locally Lorentz invariant.
I just did in the quote from the book, which is saying the same thing mbkennel referred to as Hilbert space without mentioning Hilbert space. This is a repeat of the sourced quote above:
And then give me a single theory (Qm...qm is the theory....I am asking for a sentence as to a general expression of how a crude example of what non locality means, how it possible can function as a real thing that functions and occurs) as to how non locality can possibly function as a real that that functions and occurs.
The speed of gravity is hard to pin down exactly in experiment but it's apparently also the speed of light (though we can't measure it as accurately as we can the speed of light, so there's some margin for error). So assuming the speed of gravity actually doesn't exceed the speed of light, an assumption consistent with experiment, this would make such a gravitational influence as that between the Earth and moon "local".
Would you say the influence the moon has on earth is non local? (dont answer this with 'see mann, you dont even understand dudeeee", I am not saying I think the moon is non local or not, I am seeing what you say, I can not say I have a thought on the matter until you answer my question, because as of yet, I do not have a settled understanding of your understanding of the term non local, and what you mean by when you use it. The term was invented to describe something that was thought was impossible, and for good reason. You think it is possible, I am asking, how can it possibly be possible. I am suspending disbelief, and saying 'ok yes, non locality, ok! instant information, yes! entanglement, right on! though, please, give me one tiny sliver of a piece of concept as to how non locality can possibly mean something or function as an existing phenomenon that works and has a way of working and a reason for working physically.
It's an interesting question and if I personally knew any quantum entanglement researchers, I'd ask them, but, I don't. If someone else does maybe they can answer, but if not, reading papers by the researchers is the best we have, (if you can handle comments about light radiating in spheres, but I still don't see why this bothers you).
Ok, I am asking for an idea, as I did above. QM doesnt tell us why they happen, I am asking you 1 theory as to why/how the smartest people working on this stuff might think entanglement happens.
Yes there's nothing wrong with saying we don't know certain things about QM but what we do know is certainly strange and interesting enough without introducing quantum quackery. Unfortunately that is all too rampant, since the quackery proponents say "see science doesn't know everything about QM therefore anything I make up could be true".
originally posted by: dragonridr
So when you ask someone here how on this point you get people that will feed you BS based off whatever they believe this opens up pseudo science and thats why physics doesnt come right out and speculate at least not in public.
- I want magic to exist.
- I don't understand quantum.
- Therefore, quantum could mean magic exists.
Hey beware tommy bearden is listening in threateningly
originally posted by: [post=18434848]Arbitrageur Quantum woo
- I want magic to exist.
- I don't understand quantum.
- Therefore, quantum could mean magic exists.
Thanks for sharing those ideas, and I've wondered if there could be some kind of extra-dimensional explanation too. Whatever the real explanation is, it could be a little strange to explain a seemingly strange experimental result. Let's hope the woo masters don't take the speculative ideas and write even more science fiction posing as real science. I think we have enough already.