History channel - The Universe - Multiverse Parallel Universes .

A parallel universe or alternative reality is a hypothetical self-contained separate reality coexisting with one's own. 
A specific group of parallel universes is called a "multiverse", although this term can also be used to describe the possible parallel universes that constitute physical reality. 
While the terms "parallel universe" and "alternative reality" are generally synonymous and can be used interchangeably in most cases, there is sometimes an additional connotation implied with the term "alternative reality" that implies that the reality is a variant of our own. 
The term "parallel universe" is more general, without any connotations implying a relationship, or lack of relationship, with our own universe. A universe where the very laws of nature are different – for example, one in which there are no relativistic limitations and the speed of light can be exceeded – would in general count as a parallel universe but not an alternative reality. 
The correct quantum mechanical definition of parallel universes is "universes that are separated from each other by a single quantum event."

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Quantum Physics & Harry Potter

An evening of science and magic presented by the Institute for Quantum Computing, "Quantum Physics and Harry Potter" explores real-life science that mirrors the fantastical phenomena of Harry Potter's realm.

IQC postdoctoral fellow Krister Shalm teams up with magician Dan Trommater to demonstrate quantum concepts such as teleportation and entanglement, and their analogies in J.K. Rowling's fantasy world.

A free, educational event, Quantum Physics and Harry Potter was held at the Princess Twin Cinemas in Waterloo, Ontario, on July 14 and 15, 2011.


Rather for kids, but nice and easy presented. 

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The Quantum Conspiracy: What Popularizers of QM Don't Want You to Know

About the speaker: 
 Dr. Ron Garret was an AI and robotics researcher at the NASA Jet Propulsion Lab for fifteen years before taking a year off to work at Google in June of 2000. 
He was the lead engineer on the first release of AdWords, and the original author of the Google Translation Console. 
Since leaving Google he has started a new career as an entrepreneur, angel investor and filmmaker.
He has co-founded three startups, invested in a dozen others, and made a feature-length documentary about homelessness. 


Richard Feynman once famously quipped that no one understands quantum mechanics, and popular accounts continue to promulgate the view that QM is an intractable mystery (probably because that helps to sell books). QM is certainly unintuitive, but the idea that no one understands it is far from the truth. In fact, QM is no more difficult to understand than relativity. The problem is that the vast majority of popular accounts of QM are simply flat-out wrong. They are based on the so-called Copenhagen interpretation of QM, which has been thoroughly discredited for decades. It turns out that if Copenhagen were true then it would be possible to communicate faster than light, and hence send signals backwards in time. This talk describes an alternative interpretation based on quantum information theory (QIT) which is consistent with current scientific knowledge. It turns out that there is a simple intuition that makes almost all quantum mysteries simply evaporate, and replaces them with an easily understood (albeit strange) insight: measurement and entanglement are the same physical phenomenon, and you don't really exist.


Google Tech Talk
January 6, 2011

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