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Author Topic: “Quantum Systems” act together using one another
Jedi Master
Posts: 92
Post “Quantum Systems” act together using one another
on: June 16, 2011, 11:53

I am not an expert on Quantum Information Science, but I find the concept of "mutual information" to be fascinating, as it seems to affirm the notion of "unity in diversity". It's also interesting how Aristotle related information to varying degrees of "expectation".

"June 2011 Scientific American By Vlatko Vedral, explains practical examples to demonstrate were in our everyday understanding these “Quantum Systems”, from our observations of the Animal Kingdom, to our coral reef, deep oceans and the flora and Fauna, down to our microscopic world and astrophysics is demonstration able.

“Until the past decade, experimentalists had not confirmed that quantum behavior persists on a macroscopic scale. Today, however, they routinely do. These effects are more pervasive than anyone ever suspected. They may operate in the cells of our body."

In brief Vlatko Vedral, from Scientific American Magazine adds:

“Quantum mechanics is commonly said to be a theory of microscopic things: molecules, atoms, subatomic particles.
Nearly all physicists, though, think it applies to everything, no matter what the size. The reason its distinctive features tend to be hidden is not a simple matter of scale.

Over the past several years experimentalists have seen quantum effects in a growing number of macroscopic systems.
The quintessential quantum effect, entanglement, can occur in large systems as well as warm ones—including living organisms—even though molecular jiggling might be expected to disrupt entanglement.”“quantum-systems”-act-together-using-one-another/2011/3423462.html/

To view the article in its entirety go to:

"By stripping away all irrelevant details we can distil the essence of what information means. (…) Unsurprisingly, we find the basis of our modern concept of information in Ancient Greece. The Ancient Greeks laid the groundwork for its definition when they suggested that the information content of an event somehow depends only on how probable this event really is. Philosophers like Aristotle reasoned that the more surprised we are by an event the more information the event carries. By this logic, having a clear sunny autumn day in England would be a very surprising event, whilst experiencing drizzle randomly throughout this period would not shock anyone. This is because it is very likely, that is, the probability is high, that it will rain in England at any given instant of time. From this we can conclude that less likely events, the ones for which the probability of happening is very small, are those that surprise us more and therefore are the ones that carry more information.

Following this logic, we conclude that information has to be inversely proportional to probability, i.e. events with smaller probability carry more information. In this way, information is reduced to only probabilities and in turn probabilities can be given objective meaning independent of human interpretation or anything else (meaning that whilst you may not like the fact that it rains a lot in England, there is simply nothing you can do to change its probability of occurrence). (…) p. 29

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