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Closing Loopholes in Quantum Mechanics - The Fun Is Real

Closing Loopholes in Quantum Mechanics - The Fun Is Real | Quantum Physics | Scoop.it
Violations of Bell’s Inequalities and Loopholes in Quantum Mechanics Recall that, in 1935, Einstein, Podolsky, and Rosen wrote their famous paper that became known as the EPR paradox.  In it, they pointed out the bizarre consequences of the mathematics...
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I discuss a very cool experiment that has been proposed to eliminate one of the loopholes in quantum mechanics and nonlocality.  Combines astrophysics and a desktop experiment.

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Many Worlds Interpretation and the Emperor’s New Clothes

Many Worlds Interpretation and the Emperor’s New Clothes | Quantum Physics | Scoop.it
Encountering the Many Worlds Interpretation Several years ago, I looked into the Ma­ny Worlds Interpretation (MWI) of quantum mechanics and concluded that it was not on the right track.  It seemed to be creating more conceptual and technical problems...
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I try to be as clear as possible about my opinion of many worlds interpretations of quantum mechanics.

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Physicists find that entanglement concentration is irreversible, in contrast ... - Phys.Org

Physicists find that entanglement concentration is irreversible, in contrast ... - Phys.Org | Quantum Physics | Scoop.it
Physicists find that entanglement concentration is irreversible, in contrast ...
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more steps in the quest to understand the quantum world.  The Fun Is Real!!

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It's bigger on the inside: Tardis regions in spacetime and the expanding universe

It's bigger on the inside: Tardis regions in spacetime and the expanding universe | Quantum Physics | Scoop.it
A team of cosmologists in Finland and Poland have proposed that the accelerated expansion of the universe, usually explained by dark energy, may actually be...
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Alternative to dark energy as an explanation for the accelerating expansion of the universe: pockets that are expanding faster then the rest of the universe.  But then, you will have to explain why some pockets are expanding at a different rate than the bulk.

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Backreaction: Testing Conspiracy Theories

Backreaction: Testing Conspiracy Theories | Quantum Physics | Scoop.it
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Theorertical Physicist Sabine Hossenfelder discusses her work on superdeterministic quantum mechanics.  I suppose you can make an analogy with superstring theory; people couldn't figure out how to make string theory work, so they started working on superstring theory.

 

I liked her seemingly sarcastic comment towards the end of the article that downplays the intellectual thrill and excitement of working on these issues: "If you think about it for a moment, you can never rule out generic superdeterminism anyway, so why even bother."

 

(superstring theory is the addition of supersymmetry to string theory; superdeterministic QM is the addition to QM of a hypothesis that the experimenter does not freely choose the detector settings)

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Quantum black hole study opens bridge to another universe

Quantum black hole study opens bridge to another universe | Quantum Physics | Scoop.it
Researchers in Uruguay and in Louisiana have succeeded in forming a loop quantum gravity model of a quantum black hole. The result is that predictions of ph...
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Why Are There Still So Few Women in Science?

Why Are There Still So Few Women in Science? | Quantum Physics | Scoop.it
Hint: The answer has more to do with “The Big Bang Theory” than with longstanding theories about men’s so-called natural aptitude.
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Lengthy article, but very important subject. Please read and ponder.  One of the things the article touches upon is peer pressure among young girls - the desire to fit in with friends, be accepted by boys, and not perceived as a nerd, etc.  These issues are real and prevalent today, despite all the initiatives and programs to improve the atmosphere at colleges and professional institutions.  I have been subbing at the local DoD high school and have encountered these attitudes among the high school students.  I am particularly saddened by how girls will discourage other girls from pursuing interests in math, engineering, physics, etc.

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Scientists observe competing quantum effects on the kinetic energy of protons in water

Scientists observe competing quantum effects on the kinetic energy of protons in water | Quantum Physics | Scoop.it
(Phys.org) —Quantum mechanics plays an important role in determining the structure and dynamics of water, down to the level of the atomic nuclei.

Via Ioannis
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When fluid dynamics mimic quantum mechanics

When fluid dynamics mimic quantum mechanics | Quantum Physics | Scoop.it
Researchers expand the range of quantum behaviors that can be replicated in fluidic systems, offering a new perspective on wave-particle duality.
Warren Huelsnitz's insight:

I mentioned these sort of fluid mechanics experiments in an earlier blog post: http://www.thefunisreal.com/2013/08/the-folly-of-physics-interpretations-of-quantum-physics-part-1/. ; In that post, I provide a link to an episode of Science Channel's Through the Wormhole where this is discussed and demonstrated.  What is so amazing about them is that they mimic phenomenon of quantum mechanics, but with a large, deterministic system!

 

A quote from this Science Daily article is very insightful:

 

"If you have a system that is deterministic and is what we call in the business 'chaotic,' or sensitive to initial conditions, sensitive to perturbations, then it can behave probabilistically," Milewski continues. "Experiments like this weren't available to the giants of quantum mechanics. They also didn't know anything about chaos. Suppose these guys -- who were puzzled by why the world behaves in this strange probabilistic way -- actually had access to experiments like this and had the knowledge of chaos, would they have come up with an equivalent, deterministic theory of quantum mechanics, which is not the current one? That's what I find exciting from the quantum perspective."

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Hunting quantum gravity in the big bang's echoes - New Scientist

Hunting quantum gravity in the big bang's echoes New Scientist The universe is currently described using two distinct frameworks: gravity for larger objects such as planets and black holes, and quantum mechanics for the tiny world of bosons and...
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Quantum Field Theory, String Theory and Predictions (Part 3)

Quantum Field Theory, String Theory and Predictions (Part 3) | Quantum Physics | Scoop.it
[This is the third post in a series; here's #1 and #2.] The quantum field theory that we use to describe the known particles and forces is called the ``Standard Model'', whose structure is shown sc...
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Excellent synopsis of the Standard Model of particle physics and predictions, by Matt Strassler.  Also, a pretty neat particle graphic.

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Particle Fever | WITH ONE SWITCH, EVERYTHING CHANGES.

Particle Fever | WITH ONE SWITCH, EVERYTHING CHANGES. | Quantum Physics | Scoop.it
Particle Fever follows the inside story of six brilliant scientists seeking to unravel the mysteries of the universe, documenting the successes and setbacks in the planet’s most significant and inspiring scientific breakthrough.
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The new movie on the Large Hadron Collider (LHC) and the Higgs discovery.  Hopefully, it will be a blockbuster!

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New York Times Wants to Fight Einstein, Einstein Declines

New York Times Wants to Fight Einstein, Einstein Declines | Quantum Physics | Scoop.it
The Albert Einstein of the popular imagination can seem a bit like Scott Pilgrim, forced into battle with new theories and young physicists.
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Excellent article by Matthew R. Francis that dispels the hype and exaggeration that accompanies just about any public discussion of ongoing efforts to understand and extend our theoretical and conceptual understanding of black holes and gravity.

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Google Explains Quantum Computing

Google Explains Quantum Computing | Quantum Physics | Scoop.it
Ever try to impress your friends with your razor sharp intellect only to fall woefully short? Well now with the help of Google, you too can di
Warren Huelsnitz's insight:

Yes, physics if fun!  Very cool video.  Please watch it all the way through, for the profound comments at the end.

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Physicists snatch a peep into quantum paradox

Physicists snatch a peep into quantum paradox | Quantum Physics | Scoop.it
Measurement-induced collapse of quantum wavefunction captured in slow motion.
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Measurement of evolution of a system's wave function; wave function 'collapse' in slow motion!  Incredible that scientists are able to make these delicate measurements.  Implications for foundations of quantum mechanics are immense!

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In quantum computing, light may lead the way

In quantum computing, light may lead the way | Quantum Physics | Scoop.it
Light might be able to play a bigger, more versatile role in the future of quantum computing, according to new research by Yale University scientists.
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This stuff is pretty cool.

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Do black holes have 'hair'? New hypothesis challenges 'clean' model

Do black holes have 'hair'? New hypothesis challenges 'clean' model | Quantum Physics | Scoop.it
A black hole. A simple and clear concept, at least according to the hypothesis by Roy Kerr, who in 1963 proposed a "clean" black hole model, which is the current theoretical paradigm. From theory to reality things may be quite different.
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Studying black hole physics with proposed alternative gravitational models: extensions to GR called tensor-scalar theories.

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Does Some Deeper Level of Physics Underlie Quantum Mechanics? An Interview with Nobelist Gerard ’t Hooft | Critical Opalescence, Scientific American Blog Network

Does Some Deeper Level of Physics Underlie Quantum Mechanics? An Interview with Nobelist Gerard ’t Hooft | Critical Opalescence, Scientific American Blog Network | Quantum Physics | Scoop.it
VIENNA—Over the past several days, I attended a fascinating conference that explored an old idea of Einstein’s, one that was largely dismissed for decades: that quantum ...
Warren Huelsnitz's insight:

't Hooft is working on a very ambitious agenda to create a deterministic (and local) theory that covers all quantum phenomenon, including entaglement.  Everything, including free will of the observor/experimenter is on the table.

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Physicists use blind quantum computing to verify results of quantum ...

Physicists use blind quantum computing to verify results of quantum ... | Quantum Physics | Scoop.it
(Phys.org) —A team of researchers working at the University of Vienna, has developed a technique for verifying results produced by a quantum computer. In their paper published in the journal Nature Physics, the researchers ...
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Important step towards quantum computers - how to verify whether the quantum computer is working as intended

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A Capella Science - Rolling in the Higgs (Adele Parody)

Subscribe! http://www.youtube.com/acapellascience FINALLY BACK ON ITUNES! http://bit.ly/TK07dV Like me on facebook! http://www.facebook.com/acapellascience T...
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'Walking droplets': Strange behavior of bouncing drops demonstrates pilot-wave dynamics in action

'Walking droplets': Strange behavior of bouncing drops demonstrates pilot-wave dynamics in action | Quantum Physics | Scoop.it
A research team recently discovered that it’s possible to make a tiny fluid droplet levitate on the surface of a vibrating bath, walking or bouncing across, propelled by its own wave field.
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More recent Science Daily article on macroscopic fluid dynamics mimicking quantum mechanics - demonstrates the viability of the mechanism for de Broglie-Bohm interpretation of quantum mechanics.

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The lightness of being: Smaller computer logic components through photon-molecule interaction

The lightness of being: Smaller computer logic components through photon-molecule interaction | Quantum Physics | Scoop.it

In the unending effort to reduce the size of computing nodes, scientists at University of Liège, Belgium, The Hebrew University, Jerusalem, University of Padova, Italy, and University of California, Los Angeles have employed molecules for the task...


Via José Gonçalves
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Backreaction: The multiverse is not a paradigm and it’s not shifting anything.

Backreaction: The multiverse is not a paradigm and it’s not shifting anything. | Quantum Physics | Scoop.it
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Physicist Sabine Hossenfelder critiques claims of a Multiverse Paradigm.  After giving a general critique, she takes on the unjustified claims of a recent paper on "Multiversality" (http://arxiv.org/abs/1307.7376).

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Stop the Insantiy, Physics is Cool Enough Without Excessive Hype!

Stop the Insantiy, Physics is Cool Enough Without Excessive Hype! | Quantum Physics | Scoop.it
The Historical Evidence for Excessive Hype in Physics I attended several seminars on string theory while I was a physics and astrophysics undergrad at the University of Minnesota in the mid 1980’s.  Some of you may recall this was the period in string...
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Just me venting some steam over the excessive hype and fluff in physics, with help from some brothers-in-arms.

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Particle Fever | Not Even Wrong

Particle Fever | Not Even Wrong | Quantum Physics | Scoop.it
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Peter Woit's review of the new LHC movie that tells the story of the LHC and the Higgs discovery.  Sounds like an excellent movie; I can't wait to see it!  Although, apparently a couple theorists violate my "no excessive hype" principle with regards to multiverses.

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