Quantum Physics
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Hype versus Miscommunication, or the Language of Importance

Hype versus Miscommunication, or the Language of Importance | Quantum Physics | Scoop.it
A fellow amplitudes-person was complaining to me recently about the hype surrounding the debate regarding whether black holes have “firewalls”. New York Times coverage seems somewhat excessive for ...
Warren Huelsnitz's insight:

Wow! This physicist/blogger did an excellent job of summarizing my feelings on the issue of over-hyping physics. 
Over-hype is rampant in the media, blogs, books, articles, etc.  For me, I find it a turn-off - rather than having my interest heightened when I read hype, I get irritated and frustrated.

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John Preskill: Quantum Computing and the Entanglement Frontier

John Preskill visited Google LA to speak about "Quantum Computer and the Entanglement Frontier." This talk took place on September 25, 2013 (RT @seanmcarroll: Quantum computing and entanglement explained by @preskill.
Warren Huelsnitz's insight:

Physicist John Preskill presents lecture about quantum computing and entanglement.  The analogies he uses to explain qubits, entanglement, etc., are quite relevant.  Sometimes, lecturers use analogies that can be more misleading or confusing than useful.  But the analogies he uses stress some key yet subtle aspects of the quantum world.

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Closing Quantum Loopholes

New experiments strengthen confidence in the quantum weirdness of photons
Warren Huelsnitz's insight:

Many experiments in the past have demonstrated the bizarre behavior of the quantum world.  See, for example, my discussion at http://www.thefunisreal.com/2013/09/quantum-weirdness-the-unbridled-ability-of-quantum-physics-to-shock-us/.

 

Scientists continue to look for new and improved ways to pry natures secrets out of her grip.  They also design new experiments to close possible loop holes in previous experiments.  These loop holes are potential classical issues that could be messing up the results and giving the impression of quantum wierdness.  One of these issues is detection efficiency (if you don't detect every photon, how do you know you are not selecting a biased or otherwise special sample of events for some reason).  This paper addresses that.

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Parallel Universes: Many Worlds

Subscribe to MinutePhysics - it's FREE! References Non-Equilibrium Pilot Wave model: http://arxiv.org/pdf/0811.0810.pdf AND http://arxiv.org/pdf/1001.2758.pd...
Warren Huelsnitz's insight:

Nice 3 minute video that captures the Many Worlds Interpretation (MWI) of quantum mechanics.  The video is well done and gets the essentials correct.  However, I don't understand why MWI gets so much attention in blogs, videos, documentaries, etc., (probably more than any other proposed alternative).  Unless that is simply because it is one of the most bizarre yet easy to explain and easy to hype.  I think there are much more plausible foundational interpretations of QM available.

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Quantum Field Theory, String Theory, and Predictions

Quantum Field Theory, String Theory, and Predictions | Quantum Physics | Scoop.it
One of the important lessons of last Tuesday's debate about string theory is that if I'm going to talk about theories that do or don't predict things, I'd better be very clear about what's a theory...
Warren Huelsnitz's insight:

A lot to digest in this two-part article by Physicist Matt Strassler; perspectives central to 21st century physics.  Well worth the read.

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Richard Feynman - No Ordinary Genius (Documentary)

Richard Phillips Feynman was an American theoretical physicist known for his work in the path integral formulation of quantum mechanics, the theory of quantu...

Via Troy Mccomas (troy48)
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Feynman is a case where the man lived up to the legend.

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Three Roads to What Lies Beyond Quantum Mechanics - The Fun Is Real

Three Roads to What Lies Beyond Quantum Mechanics - The Fun Is Real | Quantum Physics | Scoop.it
Alternative Paths to an Interpretation of Quantum Mechanics If you have read my earlier posts, you have likely concluded that I am a realist with respect to the foundations of quantum mechanics (QM).  I believe there is some deeper reality behind ...
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Physicists Take a New Approach to Unify Quantum Theory and ...

Physicists Take a New Approach to Unify Quantum Theory and ... | Quantum Physics | Scoop.it
Space consists of tiny elementary cells or “atoms of space” in some modern theories of quantum gravity trying to unify General Relativity and Quantum Mechanics. Quantum gravity should make it possible to describe the ...
Warren Huelsnitz's insight:

interesting and intriguing developments in the world of quantum gravity.  Only time will tell whether this is a key moment in one of the greatest breakthroughs in 21st century physics, or just more blustering

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Kathy Lizenby's curator insight, October 11, 2013 5:41 PM

Imagine what we will know tomorrow!  We use to think there was something called 'ETHER' surrounding us.  Now we can maybe put a name to it, atoms of space. 

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Detection of single photons via quantum entanglement

Detection of single photons via quantum entanglement | Quantum Physics | Scoop.it
Almost 200 years ago, Bavarian physicist Joseph von Fraunhofer discovered dark lines in the sun's spectrum. It was later discovered that these spectral lines can be used to infer the chemical composition and temperature of the sun's atmosphere.
Warren Huelsnitz's insight:

development of applications for quantum information processing; contributing to what is likely to be the next leap in technology

 

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Physicists Discover Geometry Underlying Particle Physics | Simons Foundation

Physicists Discover Geometry Underlying Particle Physics | Simons Foundation | Quantum Physics | Scoop.it
Physicists have discovered a jewel-shaped geometric object that challenges the notion that space, time and particles are fundamental constituents of nature.
Warren Huelsnitz's insight:
 Physicists discover a jewel-like geometric object (the amplituhedron)simplifies calculations of particle interactions, challenging the notion that space and time are fundamental components of reality
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A Capella Science - Bohemian Gravity!

BUY THIS TRACK! iTunes: http://bit.ly/1ayyNN2 Amazon: http://amzn.to/1aFcIsG Subscribe! http://www.youtube.com/acapellascience Like me on facebook! http://ww...
Warren Huelsnitz's insight:

This is amazing.  He did such creative work putting this together!  All of the concepts he throws at you really are parts of quantum field theory and string theory.  I am sure this will get plenty of play-time at physics gatherings. 


Support the scientist/artist and buy this track and "Rolling in the Higgs" (by the same guy) from iTunes.  Rolling in the Higgs gets the physics right while singing about the discovery of the Higgs boson at CERN.  Wow!

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Emerging Writer: Quantum Shorts

Emerging Writer: Quantum Shorts | Quantum Physics | Scoop.it
Quantum Shorts:

I am a Physics nerd so this competition is appealing and challenging.
Quantum physics is a ... http://t.co/txMXSL2NJg
Warren Huelsnitz's insight:

Flash fiction writing competition: 1000 words or less, incorporate quantum physics into the plot line.  Prizes include cash.  Deadline is 01 December 2013.

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Wacky Physics: Are Entangled Particles Connected by Wormholes?

Wacky Physics: Are Entangled Particles Connected by Wormholes? | Quantum Physics | Scoop.it
Quantum entanglement (also known as “spooky action at a distance”) is one of the most bizarre things we see happening with particle interactions on a microscale.
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The Amplituhedron and Other Excellently Silly Words

The Amplituhedron and Other Excellently Silly Words | Quantum Physics | Scoop.it
Nima Arkani-Hamed recently gave a talk at the Simons Center on the topic of what he and Jaroslav Trnka are calling the Amplituhedron. There’s an article on it in Quanta Magazine. The article starts...
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Neil deGrasse Tyson Explains Quantum Entanglement

Could quantum entanglement be used for faster-than-light communication across vast distances? Watch Neil deGrasse Tyson explain to Eugene Mirman the problems...
Warren Huelsnitz's insight:

Quick blurb by Neil deGrasse Tyson on quantum entanglement.  He mentions that, for a macroscopic object, the large number of particles in it get entangled with many other particles so that quantum effects get averaged out.  Useful insight when trying to understand the dividing line between quantum "weirdness" at the microscopic level and the classical world we directly observe.

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Quantum entanglement only dependent upon area

Quantum entanglement only dependent upon area | Quantum Physics | Scoop.it
London, UK (SPX) Sep 25, 2013 - Two researchers at UCL Computer Science and the University of Gdansk present a new method for determining the amount of entanglement - a quantum phenomenon connecting two remote partners, and crucia (RT @FutureScience36:...
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On the road to fault-tolerant quantum computing: High temperature superconductivity in a toplogical insulator

On the road to fault-tolerant quantum computing: High temperature superconductivity in a toplogical insulator | Quantum Physics | Scoop.it
Reliable quantum computing would make it possible to solve certain types of extremely complex technological problems millions of times faster than today's most powerful supercomputers.

Via Gary Bamford
Warren Huelsnitz's insight:

I remain somewhat skeptical about quantum computing and how far off it is.  But people are making steady progress.  It will be so awesome when it becomes mainstream.

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Gary Bamford's curator insight, September 17, 2013 1:53 AM

I remember when a computer actually looked like that stuff in the background ;)

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Can We Resolve Quantum Paradoxes by Stepping Out of Space and Time? [Guest Post] | Critical Opalescence, Scientific American Blog Network

Can We Resolve Quantum Paradoxes by Stepping Out of Space and Time? [Guest Post] | Critical Opalescence, Scientific American Blog Network | Quantum Physics | Scoop.it
Next month will be the 100th anniversary of Bohr's model of the atom, one of the foundations of the theory of quantum mechanics. And look where ...
Warren Huelsnitz's insight:

Physicist and Philosopher Ruth Kastner (University of Maryland, same place I earned my PhD while working on IceCube neutrino telescope) talks about the Transactional Interpretation of Quantum Mechanics: The Reality of Possibility.  Also, check out her book by that title.

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[1309.5343] Using Cosmology to Establish the Quantization of Gravity

Warren Huelsnitz's insight:

I wouldn't normally add a paper from arXiv.org to Scoop.it (there are just too many of them on quantum physics).  But, this one is extremely interesting and it's by a couple of big shots in physics (Lawrence Krauss and Frank Wilczek).  "Using Cosmology to Establish the Quantization of Gravity".

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Three levels of locality in quantum physics

Three levels of locality in quantum physics | Quantum Physics | Scoop.it
Locality seems to be a deep principle of physics. It's the idea that what happens at any given place in the universe doesn't (directly) depend on things happening in other places far away, but only...
Warren Huelsnitz's insight:

Interesting blog article about locality.  Compares and contrasts locality in configuration space to that in real (observable) space.  Makes some interesting points but seems to assume a lot from the audience.

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Stephen Hawking's big ideas ... made simple - video animation

Stephen Hawking's big ideas ... made simple - video animation | Quantum Physics | Scoop.it
Stephen Hawking's big bang theory and the creation of the universe explained in two and a half minutes (A lovely distraction for your lunch break - and you thought quantum physics was difficult...http://t.co/vJWdA5TXGU)...
Warren Huelsnitz's insight:

2 1/2 minute video summarizing hawking radiation from black holes.  The video mentions the negative mass of the particle that falls into the black hole. This is an important point becuase it explains how the partner particle that escapes can become a real particle and have positive mass.  The mass/energy of the new particle comes from the black hole.  Towards the end of the video, it mentions the origin of the universe from the big bang singularity.  There is a lot of theoretical uncertainty about what actually happened back then.  Very fascinating subject and the possibilities seem to be growing as the math and physics develops.

 

Hawking has a new autobiography out - "My Brief History".  Highly reccomended to get some insight into this iconic man.

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Crystal quantum memories for quantum communication

Crystal quantum memories for quantum communication | Quantum Physics | Scoop.it
Research into the strange phenomenon known as quantum entanglement - once described as 'spooky' by Albert Einstein - could revolutionise ICT over the coming years, enabling everything from ultra-fast computing to completely secure long-distance...
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Quantum Times Article about Surveys on the Foundations of Quantum Theory

Quantum Times Article about Surveys on the Foundations of Quantum Theory | Quantum Physics | Scoop.it
A new edition of The Quantum Times (newsletter of the APS topical group on Quantum Information) is out and I have two articles in it. I am posting the first one here today and the second, a book re...
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Physicist Matt Leifer comments on the silliness of conducting opinion surveys on the correct interpretation of quantum mechanics. 

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Transactional Interpretation of Quantum Mechanics - The Fun Is Real

Transactional Interpretation of Quantum Mechanics - The Fun Is Real | Quantum Physics | Scoop.it
What is so strange about the Transactional Interpretation?
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The strengths of the Transactional Interpretation to resolve the paradoxes of the conventional interpretations of quantum mechanics

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Quantum Mechanics (an embarrassment) - Sixty Symbols

Even the professional understanding of quantum mechanics is "embarrassing", says cosmologist Sean Carroll.
Warren Huelsnitz's insight:

Interesting interview of Sean Carroll.  I agree with his assessment that the failure of physics to develop a conceptual understanding of quantum mechanics, and the failure to arrive at consensus on its foundational meanings, is an embarrassment.  I differ with him over his endoresement of the Many Worlds Interpretation (MWI) of quantum mechanics.  I think MWI makes ludicrous assumptions and assertions (i.e. as many as an infinite number of universes branching off of ours). There are other interpretations that can resolve the paradoxes of canonical (Copenhagen) interpretation of quantum mechanics without such wild assertions.  Examples of these alternatives include de Broglie-Bohm mechanics, Transacational Interpretation, or the Two-State Vector Formalism.

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