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  1. I

    Shrodingers cat. Observer

    I'm not a physicist, but how is this picture coherent? Different strands of reality in MWI will have different assortments of matter within spacetime --> different curvatures.
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    Shrodingers cat. Observer

    In decoherence isn't the wave packet is simply "bunching up" to a pointer like state at point of thermal interaction? (I'm noob, by the way.) Doesn't this mean that macro "superpositions" are still maintained to a certain extent? (Although, of course, these superpositions will be totally...
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    Do electrons really spin?

    alxm, whilst you're answering noob questions, I'm wondering: - I spoke to a deBB'r and he told me that in decoherence the wave function is simply "bunching up" to a pointer like state during thermal interaction. Is this a correct picture? And does this "bunching up" still entail some sort of...
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    Double slit experiment with detectors not recording

    Amit Goswami subscribes to this kind of interpretation. How does he still get work? "Amit Goswami is a theoretical nuclear physicist and member of The University of Oregon Institute for Theoretical Physics since 1968, teaching physics for 32..."
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    Double slit experiment with detectors not recording

    http://www.bottomlayer.com/bottom/reality/chap2.html Is this guy also selling crackpottery? It's another claim of a double slit experiment being done wherein the data is thrown out prior to backwall observation. (interference) Can someone link an experiment where the...
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    Does this experiment demonstrate that conscoiusness causes collapse?

    I thought these results were too good to be true. Conclusive evidence showing the von neumann chain ended in either readable data or a conscious observer with the ability to read the data sometime in the future. Oh well, hopefully someone will try and replicate what this source described.
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    Does this experiment demonstrate that conscoiusness causes collapse?

    Then what causes what the experimenters claim: Erase which-path information BEFORE backwall observation --> No collapse Maintain which-path information until backwall observation --> Collapse Muddle data BEFORE backwall observation --> no collapse Maintain integrity of data until...
  8. I

    Does this experiment demonstrate that conscoiusness causes collapse?

    If the source isn't bogus, then this is incorrect. When the data is not saved, there's an interference pattern. When the data is saved but then erased, there's an interference pattern. When the data is saved but the muddled, there's an interference pattern. When the data is saved, then the...
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    Does this experiment demonstrate that conscoiusness causes collapse?

    From the source: the difference is whether the analysis of the results at the back wall is conducted when information about the electrons' positions at the slits is available, or not. So, I only see either: a) the data is required to exist (#3 in source), be understandable, and not be...
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    Does this experiment demonstrate that conscoiusness causes collapse?

    According to the source in my OP, this is only true if the which-path info isn't destroyed before viewing the backwall. I don't undestand what could be so special about this data!!
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    Does this experiment demonstrate that conscoiusness causes collapse?

    That's a different experiment I think, i'll read it tomorrow. concerning my original link; The source says that the back wall is never looked at before the decision to delete the data is made. If the experimenter chooses to delete the data, an interference pattern is made. If the...
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    Does this experiment demonstrate that conscoiusness causes collapse?

    It's a real mystery! Thankyou for clearing it up drchinese & demystifier.
  13. I

    Does this experiment demonstrate that conscoiusness causes collapse?

    Reread point 4. of that source i provided in my first post. "Suppose we take our modified double slit set up -- with electron detectors at the slits -- and still leave everything intact. And we will still keep the electron detectors at the slits turned on, so that they will be doing whatever...
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    Does this experiment demonstrate that conscoiusness causes collapse?

    Ok thanks for making this clearer guys. Buy, why does this matter? What does it matter whether the which path data is stored thus the experimenter COULD determine which-path information (collapse), or if this data is deleted and the experimenter COULDN'T (thus no collapse). Why would the...
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    Does this experiment demonstrate that conscoiusness causes collapse?

    So you have two identical double slit experiments, both recording which-path information. a) In one of these experiments, after the shooting of the electrons at the two slots, the data of the which-path information is deleted. b) In the other experiment, the data is kept then analysed...
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    Does this experiment demonstrate that conscoiusness causes collapse?

    But what does it matter if the data of the which-path information is maintained on a hard drive or deleted off it... I don't see how a simple change in the magnetic state of the hard disk could change the results of this experiment.
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    Does this experiment demonstrate that conscoiusness causes collapse?

    http://www.bottomlayer.com/bottom/reality/chap2.html#difference The beginning part of this source is cursory, scroll all the way down to the bullet points labeled with numbers 1., 2., 3., 4. and read them.
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    Can the Quantum Zeno Effect be solely attributed to decoherence?

    So nobody actually knows what causes the quantum zeno effect in some cases? Is it conclusive that it is the measurement apparatus interfering with the electron?
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    Does the wavefunction have a zero value anywhere?

    I didn't understand much of what you said, but thanks for the answer
  20. I

    Does the wavefunction have a zero value anywhere?

    I was under the assumption from Brain Greene's book that the wavefunction always has a non-zero value and what we see in everyday life is just the most likely (by an extreme, unimaginable amount) occurance occuring. He gave the example that it is actually possible for every particle in every...
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    Does the wavefunction have a zero value anywhere?

    Does the wavefunction have a zero value anywhere?? Are there any places in the universe where a wavefunction has a 0 value? Or does the wavefunction have a non-zero value for everywhere in space? (0 doesn't equal incredibly unlikely). --- Also, let's assume the theory on the planck length is...
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    Uncertainty vs Determinism

    Couldn't you somehow utilize the cosmic quantum eraser delayed choice thingy to communicate information, supposedly FTL, in binary? All we'd need is to eliminate any form of decoherence (assuming the act of consciously observing the particle in the form of measurement doesn't endear its...
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    Can the Quantum Zeno Effect be solely attributed to decoherence?

    I thought decoherence was something along the lines of a wavefunction collapsing due to its interaction with the surrounding environment? An attempt to solve/better understand the measurement problem? I'm probably missing the point, but if you were able to completely take decoherence out of...
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    Can the Quantum Zeno Effect be solely attributed to decoherence?

    Can the Quantum Zeno Effect be solely attributed to decoherence? In every single case? Is the concensus on this matter opinion, or rigorously tested fact in which every case can be attributed to decoherence? On a more well known note, can the supposed wavefunction collapse (which gives...
  25. I

    Throwing a tennis ball through a wall

    According to professor Brian Greene, you can't. People just think they can because for all practical purposes a macroscopic measurement appears accurate, but it never really is.
  26. I

    Two entangled electrons

    I'm not a physicist but here goes. What happens if you have two entangled electrons A and B. What if B goes against what is probable and collapses onto a star 10 billion light years away traveling away from its "twin" electron back on earth. Would the two electrons still be entangled, even...
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    Quantum Zeno Effect.

    Does anybody else see the significance of this?
  28. I

    Quantum Zeno Effect.

    Hi, I don't know much about physics but the limited amount of reading I've done on this particular observation (is that what you call it?) is mind boggling. http://en.wikipedia.org/wiki/Quantum_Zeno_effect Wtf? Is this statement 100% accurate? If it is, what are the consequences for us?
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