Clarity beats accuracy

Quantum Physics for 7 Year Olds
Dominic Walliman
TEDxEastVan
May 24, 2016
In this lighthearted talk Dominic Walliman gives us four guiding principles for easy science communication and unravels the myth that quantum physics is difficult to understand, it’s all in how it’s explained.

11:20
1. Start off in the right place. Everyone has a different background, everyone has a different set of knowledge …
12:15
2. Don’t go too far down the rabbit hole.
12:48
3. Clarity beats accuracy

4. Explain what you think is cool

related:
http://www.npr.org/sections/13.7/2016/10/17/498218201/do-we-need-scientific-idioms-for-everyday-experience

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Quinine is highly fluorescent

Tonic water, in normal light and ultraviolet “black light”.

Quinine occurs naturally in the bark of the cinchona tree, though it has also been synthesized in the laboratory.
The medicinal properties of the cinchona tree were originally discovered by the Quechua, who are indigenous to Peru and Bolivia

Quinine is highly fluorescent (quantum yield ~0.58)

Because of its relatively constant and well-known fluorescence quantum yield, quinine is used in photochemistry as a common fluorescence standard.
The UV absorption peaks around 350 nm (in UVA).
Fluorescent emission peaks at around 460 nm (bright blue/cyan hue).

source:
http://en.wikipedia.org/wiki/Quinine

related:
https://franzcalvo.wordpress.com/2014/03/30/make-magic-mud-from-a-potato

Scientists Take Quantum Steps Toward Teleportation

Scientists Take Quantum Steps Toward Teleportation
August 01, 2010
http://www.npr.org/templates/story/story.php?storyId=128910996

It’s not exactly the Star Trek version of teleportation, where an object disappears then reappears somewhere else. Rather, it “entangles” two different atoms so that one atom inherits the properties of another.

“According to the quantum theory, everything vibrates,” theoretical physicist Michio Kaku says. “When two electrons are placed close together, they vibrate in unison. When you separate them, that’s when all the fireworks start.”

This is where quantum entanglement — sometimes described as “teleportation” — begins. “An invisible umbilical cord emerges connecting these two electrons.
And you can separate them by as much as a galaxy if you want. Then, if you vibrate one of them, somehow on the other end of the galaxy the other electron knows that its partner is being jiggled.”

This process happens even faster than the speed of light, physicists say.

Quantum entanglement isn’t a new idea — Einstein once famously referred to it as “spooky action at a distance” — but it wasn’t until the past 30 years that scientists were first able to observe this process.

related:
quantum teleportation
Oct. 2006
http://www.nature.com/nphys/journal/v2/n10/covers/index.html

The Teleportation of Quantum States
2006
http://www.nature.com/nphys/journal/v2/n10/fig_tab/nphys425_ft.html

Time ‘Emerges’ from Entanglement

Time ‘Emerges’ from Entanglement
Quantum Experiment Shows How Time ‘Emerges’ from Entanglement
October 23, 2013
https://medium.com/the-physics-arxiv-blog/d5d3dc850933

Time is an emergent phenomenon that is a side effect of quantum entanglement, say physicists. And they have the first experimental results to prove it

related:
https://franzcalvo.wordpress.com/2015/01/20/emergence-process

Universe is a hologram

At a black hole, Albert Einstein’s theory of gravity apparently clashes with quantum physics, but that conflict could be solved if the Universe were a holographic projection.

Simulations back up theory that Universe is a hologram
A ten-dimensional theory of gravity makes the same predictions as standard quantum physics in fewer dimensions.
10 December 2013
http://www.nature.com/news/simulations-back-up-theory-that-universe-is-a-hologram-1.14328

In 1997, theoretical physicist Juan Maldacena proposed that an audacious model of the Universe in which gravity arises from infinitesimally thin, vibrating strings could be reinterpreted in terms of well-established physics. The mathematically intricate world of strings, which exist in nine dimensions of space plus one of time, would be merely a hologram: the real action would play out in a simpler, flatter cosmos where there is no gravity.

Maldacena’s idea thrilled physicists because it offered a way to put the popular but still unproven theory of strings on solid footing — and because it solved apparent inconsistencies between quantum physics and Einstein’s theory of gravity.
[You are a simulation & physics can prove it: George Smoot at TEDxSalford. Nobel.
http://tedxtalks.ted.com/video/You-are-a-simulation-physics-ca]
It provided physicists with a mathematical Rosetta stone, a ‘duality’, that allowed them to translate back and forth between the two languages, and solve problems in one model that seemed intractable in the other and vice versa (see ‘Collaborative physics: String theory finds a bench mate’).
But although the validity of Maldacena’s ideas has pretty much been taken for granted ever since, a rigorous proof has been elusive.

In two papers posted on the arXiv repository, … now provide, if not an actual proof, at least compelling evidence that Maldacena’s conjecture is true.

In one paper2, Hyakutake computes the internal energy of a black hole, the position of its event horizon (the boundary between the black hole and the rest of the Universe), its entropy and other properties based on the predictions of string theory as well as the effects of so-called virtual particles that continuously pop into and out of existence (see ‘Astrophysics: Fire in the Hole!’).

related:
Do we live in a 2-D hologram?
New Fermilab experiment will test the nature of the universe
August 26, 2014
http://www.fnal.gov/pub/presspass/press_releases/2014/2-D-Hologram-20140826.html

Physicists Almost Certain The Universe Is Not A Hologram
July 05, 2011
http://www.npr.org/blogs/thetwo-way/2011/07/06/137634397/physicists-almost-certain-the-universe-is-not-a-hologram

https://franzcalvo.wordpress.com/2014/12/28/11-dimensions

The moon isn’t there when you’re not looking at it

Einstein’s Real Breakthrough? Quantum Theory
November 01, 2013
http://www.npr.org/2013/11/01/242356997/einsteins-real-breakthrough-quantum-theory

Einsten went for the Unified Field Theory and beautiful mathematics and he sort of felt less willing to just listen to what nature was telling him. So as I argue in the book, I think it was his philosophical beliefs about why he was doing science and why it was a noble pursuit, you know, sort of the justification of his life’s mission, which was to find these objective truths about the world that were independent of man: Eternal truths.

And because quantum mechanics seem to involve an observer, he really didn’t like that framework and he used to say in this just shorthand, do you really believe that the moon isn’t there when you’re not looking at it?.

see also:
http://castroller.com/podcasts/YaleEngineering/1171783
Yale Engineering & Technology
Einstein dismissed quantum mechanics with “God does not play dice”

Princeton University Press
http://press.princeton.edu/titles/10068.html