News: the first quantum teleportation of a qutrit

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AndyGoode

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Re: News: the first quantum teleportation of a qutrit
« Reply #15 on: August 20, 2019, 01:52:45 am »
I bet there is already a quantum aspect to biology. Why not?

Roger Penrose was a famous proponent of his hypothesis that the human brain uses quantum mechanics to do the amazing things it does. His conjectures have been proven wrong so far, and I expect they always will. As brilliant as the guy is, his hypotheses sound ridiculous to me.

(p. 400)
   There is, in fact, at least one clear place where action at the single quantum
level can have importance for neural activity, and this is in the retina.
(Recall
that the retina is technically part of the brain!) Experiments with toads have
shown that under suitable conditions, a single photon impinging on the
dark-adapted retina can be sufficient to trigger a macroscopic nerve signal
(Baylor, Lamb, and Yau 1979). The same appears to be true of man (Hecht,
Shlaer, and Pirenne 1941), but in this case there is an additional mechanism
present which suppresses such weak signals, so that they do not confuse the
perceived picture with too much visual 'noise'. A combined signal of about
seven photons is needed in order that a dark-adapted human subject can
actually become aware of their arrival. Nevertheless, cells with a single-photon
sensitivity do appear to be present in the human retina.

(p. 447)
Conclusion: a child's view

In this book I have presented many arguments intending to show the
untenability of the viewpoint--apparently rather prevalent in current philo-
sopohizing--that our thinking is basically the same as the action of some very
complicated computer. When the explicit assumption is made that the mere
enaction of an algorithm can evoke conscious awareness, Searle's terminology
'strong AI' has been adopted here. Other terms such as 'functionalism' are
sometimes used in a somewhat less specific way.
   Some readers may, from the start, have regarded the 'strong-AI supporter'
as perhaps largely a straw man! Is it not 'obvious' that mere computation
cannot evoke pleasure or pain; that it cannot perceive poetry or the beauty of
an evening sky or the magic of sounds; that it cannot hope or love or despair;
that it cannot have a genuine autonomous purpose? Yet science seems to
have driven us to accept that we are all merely small parts of a world governed
in full detail (even if perhaps ultimately just probabilistically) by very precise
mathematical laws. Our brains themselves, which seem to control all our
actions, are also ruled by these same precise laws. The picture has emerged
that all this precise physical activity is, in effect, nothing more than the acting
out of some vast (perhaps probabilistic) computation--and, hence our brains
and our minds are to be understood solely in terms of such computations.
Perhaps when computations become extraordinarily complicated they can
begin to take on the more poetic or subjective qualities that we associate with
the term 'mind'. Yet is is hard to avoid an uncomfortable feeling that there
must always be something missing from such a picture.
   In my own arguments I have tried to support this view that there must
indeed be something essential that is missing from any purely computational
picture. Yet I hold also to the hope that it is through science and mathematics
that some profound advances in the understanding of mind must eventually
come to light. There is an apparent dilemma here, but I have tried to show
that there is a genuine way out. Computability is not at all the same thing as
being mathematically precise. There is as much mystery and beauty as one
might wish in the precise Platonic mathematical world, and most of this
mystery resides with concepts that lie outside the comparatively limited part
of it where algorithms and computation reside.

Penrose, Roger. 1989. The Emperor's New Mind: Concerning Computers, Mind, and The Laws of Physics. New York: Oxford University Press.

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goaty

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Re: News: the first quantum teleportation of a qutrit
« Reply #16 on: August 20, 2019, 06:03:35 am »
Yes quantum is to be ridiculed.
Uncertainty, is definitely there to be a problem in measuring such small quantities of things,  but its not because the atoms are in two places at once.
If something isn't there after you measured it,  perhaps it was disturbed in a much more ordinary sense, than it representing more than one amplitude each measurement.
Even a capacitor, will change value if you put charge into it, to test its current polarity.
Entanglement (why entanglement, is it a scientists brain dead sexual fantasy??) seems to indicate to me, that light photons themselves form some form of memory where it was last refracted and reflected in two at the side of a crystal, that doesn't seem to be probable.
The famous double slit experiment, is computed probablisticly even tho its the same determined response!! also making sure given the slit was smaller than the wave length of light - so you have to make a very sharp slit if you plan on doing it, and its easily explained by phase inversion why you get positive and negative wave pattern, which again, i say doesn't seem to be probabilistic, its determined anyway.
Quantum computers use probabilistic mathematics, seemingly based apon the fact that such low amplitudes are noisy to measure from but you seem to be able to involve it in your mathematics as a part of your controlled output.

If Quantum entanglement was a true phenomenon, its not even a complex situation that wouldn't have been mastered already if it were true that it worked.

but that isn't actually a reason why it wouldn't be true I guess....

If you want to be ridiculed, I guess it could actually be true still...
It would actually mean the quite pleasant result of the universe containing more data context than its entire store of atoms by an exponent (which could be infinite anyway I guess.) which I like the idea of,  and I guess it may be true...   and if it is, watch out if anyone manages to harness the infinite memory you can get out of just a tiny miniscule amount of atoms just like the atomic bomb!   Let alone making a big one, out of a google of atoms.

But note, when I say something positive about it like that,   even if its true, everything on the internet is at least a half lie, and taught all backwards and completely wrong in general.  If your going to work it out,  I think you are on your own.   No decent help anywhere.  What if entanglement isn't about getting an exponent but its how you read out of quack memory or something, I dunno.  but its not what it seems.
« Last Edit: August 20, 2019, 07:52:20 am by goaty »

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AndyGoode

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Re: News: the first quantum teleportation of a qutrit
« Reply #17 on: August 21, 2019, 02:05:36 am »
I bet there is already a quantum aspect to biology.

Look what I just came across today by accident. It looks like you're likely to win your bet, though according to that video it is not yet known for sure.

()
How Quantum Biology Might Explain Life’s Biggest Questions | Jim Al-Khalili | TED Talks
TED
Published on Sep 16, 2015
https://www.youtube.com/watch?v=_qgSz1UmcBM

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Hopefully Something

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Re: News: the first quantum teleportation of a qutrit
« Reply #18 on: August 21, 2019, 04:08:37 am »
 :D
If we discover methods of interacting with them, these delicate states seem like they will be useful for allowing greater delicacy and finesse in the operations of future AI's and robots. We'll be able to fix a whole bunch of new stuff with tiny little instruments!

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goaty

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Re: News: the first quantum teleportation of a qutrit
« Reply #19 on: August 21, 2019, 04:18:26 pm »
Ive got a problem with dna being the size of atoms, and they know what it looks like.  I thought we couldn't see atoms?

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ivan.moony

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Re: News: the first quantum teleportation of a qutrit
« Reply #20 on: August 21, 2019, 04:24:29 pm »
Ive got a problem with dna being the size of atoms, and they know what it looks like.  I thought we couldn't see atoms?

https://en.wikipedia.org/wiki/Crystallography
Dream big. The bigger the dream is, the more beautiful place the world becomes.

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goaty

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Re: News: the first quantum teleportation of a qutrit
« Reply #21 on: August 21, 2019, 07:11:58 pm »
Ah rubbish,  you cant look into a microscope and see the balls!!  what a load.

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ivan.moony

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Re: News: the first quantum teleportation of a qutrit
« Reply #22 on: August 21, 2019, 07:36:13 pm »
Scientists analyzed structures of proteins got by crystallography and concluded that the Universe optimizes protein structures by solving "traveling salesman problem" in a very fast way. I believe them.

Also see https://en.wikipedia.org/wiki/Electron_microscope - it maginifies about 1 × 107 times. Let's do some math... The diameter of an atom ranges from about 0.1 to 0.5 nanometers (1 × 10−10 m to 5 × 10−10 m). It means that an image of an atom stretches in a range from about 1 × 10-3 m to 5 × 10-3 m. That's about 1 to 5 millimeters per atom, if I'm not mistaken. Though, I don't know about magnetic interactions between electrons sent from the microscope and observed atoms, assuming the distance between atoms is 1 × 10 -10 m...

[Edit]
Looked up that wiki, it says it's ok:

Quote
The resolution of TEMs is limited primarily by spherical aberration, but a new generation of hardware correctors can reduce spherical aberration to increase the resolution in high-resolution transmission electron microscopy (HRTEM) to below 0.5 angstrom (50 picometres), enabling magnifications above 50 million times. The ability of HRTEM to determine the positions of atoms within materials is useful for nano-technologies research and development.
« Last Edit: August 21, 2019, 08:39:33 pm by ivan.moony »
Dream big. The bigger the dream is, the more beautiful place the world becomes.

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goaty

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Re: News: the first quantum teleportation of a qutrit
« Reply #23 on: August 21, 2019, 09:20:49 pm »
Im seeing the balls!!!   :D


!!


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Hopefully Something

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Re: News: the first quantum teleportation of a qutrit
« Reply #24 on: August 21, 2019, 10:01:26 pm »
 Looking at the video below... Wow I can't imagine the necessary image stabilization/slowmo and resulting light requirements.
« Last Edit: August 22, 2019, 10:49:51 pm by Hopefully Something »

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AndyGoode

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Re: News: the first quantum teleportation of a qutrit
« Reply #25 on: August 22, 2019, 12:24:40 am »
I thought we couldn't see atoms?

()
Have you ever seen an atom?
nature video
Published on Mar 27, 2013
https://www.youtube.com/watch?v=yqLlgIaz1L0
()
Gold atoms being pulled apart
ScienceVideos
Published on Feb 15, 2017
https://www.youtube.com/watch?v=pGWSX6pStd0


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goaty

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Re: News: the first quantum teleportation of a qutrit
« Reply #26 on: August 23, 2019, 05:19:59 am »
Looks fake to me.  Your lucky you guys have me around before you all go jump on the bandwagon.   :2funny:

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