Thursday, March 26, 2009

Uh oh, those quantum kids are goin to mess it all up for me and Einstein..or not?

Before we begin, I will define a key idea as I will not be returning to its definition or orgin in this particular discourse; Nonlocality is the possibility of physically affecting something without touching it or touching any series of entities reaching from here to there...this poses a threat to special relativity as according to Einstein, nothing can travel faster than the speed of light. Needless to say, Einstein was not down. In fact, he and two friends published a paper regarding the existence of entangled particles (evidence of nonlocality) and deemed this aspect of quantum mechanics 'strange and dubious' and assumed that this type of nature was apparent only, a mathematical anomaly surely.

Niels Bohr on the other hand, responded immediately with an incredibly prescient refutation highlighting Einstein et cie's use of the word reality and impressed the significance of subject and object, the conditions under which it makes sense to ask questions, and the nature of human language.

Okay, now, in the most recent issue of Scientific American, there is an article on entanglement and briefly the authors highlight what this would mean in terms of time travel. When considering special relativity and nonlocality, one must recall that sp. relativity is based on the impossibility of transmitting messages faster than the speed of light. After all, if sp. relativity is true, one can argue that no material carrier of a message can be accelerated from rest to speeds greater than that of light. And one can argue that a message transmitted faster than light would, according to some clocks, be a message that arrived before it was sent. The kind of nonlocality encountered in quantum mechanics calls for an absolute simultaneity...posing a very real threat to special relativity as subjectivity is IT in terms of relativity.

However, as Stephen (Eloise) Hawking (and a lot of other physicists) has emphatically proposed, a possible key to the ultimate theory of everything/the universe is the melding of quantum mechanics and relativity. Ugh, how to do this...

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