1 The Mystique

In every text­book we know, quantum mechanics has been largely san­i­tized of these beau­tiful encite­ments and their impli­ca­tions. — George Green­stein & Arthur C. Zajonc

0 Prob­a­bility

“In a non-​​deterministic world, prob­a­bility has nothing to do with incom­plete knowl­edge. Quantum mechanics is the first example in human expe­ri­ence where prob­a­bil­i­ties play an essen­tial role even when there is nothing to be igno­rant about.” — N. David Mermin

1 Bell’s the­orem

“Any­body who’s not both­ered by Bell’s the­orem has to have rocks in his head.” — A dis­tin­guished Princeton physicist

2 Rules of the Game

“Every­thing should be made as simple as pos­sible, but not sim­pler.” — Albert Einstein

3 A scat­tering event

“Half of sci­ence is asking the right ques­tions.” — Roger Bacon

4 Two slits

“It could have gone either way … and it did.” — Dou­glas Adams

5 Bomb testing

“No rea­son­able def­i­n­i­tion of reality could be expected to permit this.” — A. Ein­stein, B. Podolsky, and N. Rosen

6 A quantum game

“There are no ‘wheels and gears’ beneath this analysis of Nature.” — Richard Feynman

7 The GHZ experiment

“So farewell ele­ments of reality! And farewell in a hurry.” — N. David Mermin

8 The ESW experiment

“Your expe­ri­ence with things that you have seen before is incom­plete. The behavior of things on a very tiny scale is simply dif­ferent. An atom does not behave like a weight hanging on a spring and oscil­lating. Nor does it behave like a minia­ture rep­re­sen­ta­tion of the solar system with little planets going around in orbits. Nor does it appear to be some­what like a cloud or fog of some sort sur­rounding the nucleus. It behaves like nothing you have ever seen before.” — Richard Feynman

9 Influ­encing the past?

“As Popper has remarked, our the­o­ries are ‘nets designed by us to catch the world.’ We had better face up to the fact that quantum mechanics has landed some pretty queer fish.” — Michael Redhead

10 Iden­tical bosons

“Anyone moving from the world of only black-​​and-​​white to the world of color is opening up the door to a new world — a world ripe with new pos­si­bil­i­ties and new expres­sion.… This same flood of rich­ness and fresh­ness comes from entering the quantum world.” — Dan Styer

11 An ancient conundrum

“Advances are made by answering ques­tions. Dis­cov­eries are made by ques­tioning answers.” — Bern­hard Haisch

12 Quantum sta­tis­tics

“Anyone who is not shocked by quantum theory has not under­stood it.” — Niels Bohr

13 Quantum coins and dice

“No accept­able expla­na­tion for the mirac­u­lous iden­tity of par­ti­cles of the same type has ever been put for­ward. That iden­tity must be regarded, not as a triv­i­ality, but as a cen­tral mys­tery of physics.” — C.W. Misner, K.S. Thorne, and J.A. Wheeler