photonic29

5 ms·

1.
by photonic29 11y ago
> This "apparent randomness" of measurement results is equally true of chaotic classical systems; it's not something that only appears in QM. Is that a fair comparison? Yes, in either case, the experimenter is limited in
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by photonic29 11y ago
> But this isn't true. The MWI is completely deterministic, because wave function collapse never occurs, and wave function collapse is the source of all the indeterminism in the Copenhagen interpretation. For what useful definition
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by photonic29 11y ago
But it can be used for security: http://www.nature.com/news/2008/080827/full/news.2008.1067.h...
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by photonic29 11y ago
> Quantum entanglement could allow users to send data through a network and know immediately whether that data had made it to its destination without being intercepted or altered. With hyperentanglement, users could send much denser pack
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by photonic29 11y ago
>The correct statement is this: you can make an observation of a system which is not in an eigenstate of the measurement operator you are using. I should have distinguished better, but what you're more rigorously calling an eigensta
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by photonic29 11y ago
Is that really the case though? An observation collapses a wave function. The Copenhagen interpretation suggests that the collapsed state arises from a probability distribution, but it does not address the "fundamental" origin of
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by photonic29 11y ago
You can make an observation of a system whose state is undetermined. By interrogating the system for its state, a state becomes determined. Suppose, for example, that you have a flipped coin and sent it rotating in space, never hitting the
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by photonic29 11y ago
>Does measurement have to include an agent? Could measurement mean interaction with other atoms? Indeed it can. Roughly put, if information about the state left the undetermined system, a measurement has been made. One of the most frustr
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by photonic29 11y ago
If it dragged dominant EEG frequencies, that would suggest that the effect either alters thalamic pacemaking or otherwise takes over. This audio beat frequency may exist as an analog somewhere locally as changes in average postsynaptic pote
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by photonic29 11y ago
This study in PLOS seems to agree with the results: http://journals.plos.org/plosone/article?id=10.1371/journal.... This study suggests some measurable effects, though not as simple and direct as the appearance of
11.
by photonic29 11y ago
How about cryptogenic stroke? http://www.ncbi.nlm.nih.gov/pubmed/23366107 I think it's relatively clear that the tech works in a controlled setting. It even works surprisingly well in an uncontrolled setting. But a
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by photonic29 11y ago
Hey Brandon, I replied to you from an address containing 'dash'.
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by photonic29 11y ago
Photoplethsymographic heart rate requires a lot of algorithmic compensation for noise and motion artifact. There are some pretty sophisticated strategies available for beat interpolation, but individual R-R intervals are tremendously more d