•September 24, 2013 • 2 Comments
“… the separation between past, present, and future is only an illusion, although a convincing one.” – Albert Einstein
“The amplituhedron is not built out of space-time and probabilities; these properties merely arise as consequences of the jewel’s geometry… Encoded in its volume are the most basic features of reality that can be calculated, “scattering amplitudes,” which represent the likelihood that a certain set of particles will turn into certain other particles upon colliding.
… The 60-year-old method for calculating scattering amplitudes — a major innovation at the time — was pioneered by the Nobel Prize-winning physicist Richard Feynman….“The number of Feynman diagrams is so explosively large that even computations of really simple processes weren’t done until the age of computers,” Bourjaily said….In 1986, it became apparent that Feynman’s apparatus was a Rube Goldberg machine.”
A Jewel at the Heart of Quantum Physics – Quanta Magazine
•September 12, 2013 • Leave a Comment
“A team of University of Queensland physicists has transmitted an atom from one location to another inside an electronic chip.
The team, which includes Dr Arkady Fedorov and Dr Matthias Baur from UQ’s ARC Centre of Excellence for Engineered Quantum Systems and the School of Mathematics and Physics, published its findings in Nature.
Dr Fedorov said the team had achieved quantum teleportation for the first time, which could lead to larger electronic networks and more functional electronic chips.
‘This is a process by which quantum information can be transmitted from one place to another without sending a physical carrier of information,’ Dr Fedorov said.
‘In this process the information just appears at the destination, almost like teleportation used in the famous science fiction series Star Trek.’”
One step closer to teleportation – Science Alert
•August 7, 2013 • Leave a Comment
My take: If we can get to the place where we understand that “reality” and what we perceive as its aspects are self-organizing data/information in constant flux within an interrelational context, the question posed by this article becomes moot. The rest – including debates about direct observation versus “indirect” observation (that is, observation via instruments designed by humans for the purpose of observation and that ultimately have a human making an observation of the instruments’ observations) – is mental masturbation… as are any attempts at using human thinking to disprove human thinking.
It is (Western) linguistic determinism and material reductionism that would advance an argument otherwise and make any of this more complicated than it actually is.
Does the Universe Exist if We’re Not Looking? – Discover
•July 2, 2013 • Leave a Comment
“In Wineland’s lab at the National Institute of Standards and Technology, he and his colleagues take a single ionized atom of, say, beryllium and put it into a magnetic trap. There it acts a bit like a marble rolling around in a bowl. It’s on the left side of the bowl, it’s on the right, it’s in both places at once. This particular bowl is 80 nanometers wide, and the marble is a ‘wave packet’ that is all of seven nm. ‘You might argue that it isn’t really Schrodinger’s cat because it’s small,’ Wineland said. But where do you draw the line? ‘We struggle with that, because at this point there’s no way of finding that classical-quantum boundary.’”
The Blurry Line Between Quantum and Small – Scientific American
•July 30, 2012 • Leave a Comment
“It’s a scientist’s duty to be properly skeptical, says Berkeley physics Prof. Richard Muller, who still says that much, if not most, of what is attributed to climate change is speculative, exaggerated or just plain wrong. He has analyzed some of the most alarmist claims and his skepticism about them hasn’t changed.
What has changed is his doubt about the very existence of global warming. And he is now going a step further: Humans are almost entirely the cause, he says.”
Berkeley Physics Professor Richard Muller: Conversion Of A Climate Skeptic – Science 2.0
•April 26, 2012 • Leave a Comment
“Two pairs of entangled photons are produced, and one photon from each pair is sent to a party called Victor. Of the two remaining photons, one photon is sent to the party Alice and one is sent to the party Bob. Victor can now choose between two kinds of measurements. If he decides to measure his two photons in a way such that they are forced to be in an entangled state, then also Alice’s and Bob’s photon pair becomes entangled. If Victor chooses to measure his particles individually, Alice’s and Bob’s photon pair ends up in a separable state. Modern quantum optics technology allowed the team to delay Victor’s choice and measurement with respect to the measurements which Alice and Bob perform on their photons. ‘We found that whether Alice’s and Bob’s photons are entangled and show quantum correlations or are separable and show classical correlations can be decided after they have been measured,’ explains Xiao-song Ma, lead author of the study.
According to the famous words of Albert Einstein, the effects of quantum entanglement appear as ‘spooky action at a distance.’ The recent experiment has gone one remarkable step further. ‘Within a naïve classical word view, quantum mechanics can even mimic an influence of future actions on past events,’ says Anton Zeilinger.”
Quantum physics mimics spooky action into the past – Eurekalert.org