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+20 +1
Parallel worlds exist and interact with our world, say physicists
New theory explains many of the bizarre observations made in quantum mechanics.
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+37 +1
Google and NASA are getting a new quantum computer
The famous Quantum Artificial Intelligence Lab is getting some powerful new hardware. A joint project between Google, NASA, and the Universities Space Research Association, the Quantum AI Lab today announced a multiyear agreement to install a D-Wave 2X, a state-of-the-art quantum processor released earlier this year. With over 1,000 qubits, the machine is the most powerful computer of its kind, and will be...
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+26 +1
Laser-wielding physicists seize control of atoms’ behavior
Physicists have wondered in recent years if they could control how atoms interact using light. Now they know that they can, by demonstrating games of quantum billiards with unusual new rules. In an article published in Physical Review Letters, a team of Univ. of Chicago physicists explains how to tune a laser to make atoms attract or repel each other in an exotic state of matter called a Bose-Einstein condensate.
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+21 +1
The Topolariton, a New Half-Matter, Half-Light Particle
A new type of “quasiparticle” theorized by Caltech’s Gil Refael, a professor of theoretical physics and condensed matter theory, could help improve the efficiency of a wide range of photonic devices—technologies, such as optical amplifiers, solar photovoltaic cells, and even barcode scanners, which create, manipulate, or detect light.
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+29 +1
Chance effect of lab's fluorescent lights leads to discovery
An accidental discovery of a “quantum Etch-a-Sketch” that may lead to the next generation of advanced computers and quantum microchips has been made by team of scientists from Penn State University and the University of Chicago.
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+26 +1
Tangled Up in Entanglement
Researchers affirmed once again that quantum mechanics, as strange as it may seem, works in every way we can test it. By Lawrence M. Krauss.
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+23 +1
Will Quantum Mechanics Swallow Relativity?
The contest between gravity and quantum physics takes a new turn. By Corey S. Powell.
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+31 +1
New derivation of pi links quantum physics and pure math
In 1655 the English mathematician John Wallis published a book in which he derived a formula for pi as the product of an infinite series of ratios. Now researchers from the University of Rochester, in a surprise discovery, have found the same formula in quantum mechanical calculations of the energy levels of a hydrogen atom.
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+4 +1
Physicists put the arrow of time under a quantum microscope
Entropy caused by quantum fluctuations measured at the molecular level. By Jon Cartwright.
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+2 +1
A classic formula for pi has been discovered hidden in hydrogen atoms
This is truly amazing. By Fiona MacDonald.
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+19 +1
Quantum entanglement achieved at room temperature in semiconductor wafers
Entanglement is one of the strangest phenomena predicted by quantum mechanics, the theory that underlies most of modern physics. It says that two particles can be so inextricably connected that the state of one particle can instantly influence the state of the other, no matter how far apart they are...
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+29 +1
Physicists set quantum record by using photons to carry messages from electrons almost 2 kilometers apart
Researchers from Stanford have advanced a long-standing problem in quantum physics – how to send "entangled" particles over long distances. Their work is described in the online edition of Nature Communications. Scientists and engineers are interested in the practical application of this technology to make quantum networks that can send highly secure information over long distances – a capability that also makes the technology appealing to governments, banks and militaries.
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+19 +1
Einstein’s Unfinished Dream: Marrying Relativity to the Quantum World
On the centennial of the theory of general relativity, senior Fermilab scientist Don Lincoln reflects on Einstein's quest to understand the quantum world.
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+18 +1
Physicists confirm thermodynamic irreversibility in a quantum system
For the first time, physicists have performed an experiment confirming that thermodynamic processes are irreversible in a quantum system—meaning that, even on the quantum level, you can't put a broken egg back into its shell. The results have implications for understanding thermodynamics in quantum systems and, in turn, designing quantum computers and other quantum information technologies.
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+38 +1
Fermilab Experiment Finds No Evidence That We Live in a Hologram
A controversial experiment at Fermilab designed to hunt for signs that our universe may really be a hologram has failed to find the evidence it was seeking, the laboratory has announced. It’s called the Holometer (short for “Holographic Interferometer”), and it’s the brainchild of Fermilab physicist Craig Hogan. He dreamed up the idea in 2009 as a way to test the so-called holographic principle.
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+19 +1
Google Finds D-Wave Machine To Be 10^8 Times Faster Than Simulated Annealing
We found that for problem instances involving nearly 1000 binary variables, quantum annealing significantly outperforms its classical counterpart, simulated annealing. It is more than 10^8 times faster than simulated annealing running on a single core.
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+3 +1
Google, NASA: Our quantum computer is 100 million times faster than a normal PC
Two years ago Google and NASA went halfsies on a D-Wave quantum computer, mostly to find out whether there are actually any performance gains to be had when using quantum annealing instead of a conventional computer. Recently, Google and NASA received the latest D-Wave 2X quantum computer, which the company says has "over 1000 qubits."
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+36 +1
How Real Is Reality?
Reality seems pretty stubborn, pretty fixed — and pretty much independent of whatever is going on in your head. But is it, really? Astrophysicist Adam Frank explores the scientific debate.
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+25 +1
Physicists have managed to tie a quantum knot for the first time
An international team of scientists has managed to create a quantum knot for the first time - a fundamental breakthrough in quantum physics that could one day help power the supercomputers of the future. These knots aren't quite the same as the ones you might tie to moor a boat to a jetty - they've been made in a superfluid form of quantum matter called Bose-Einstein Condensate, or BEC, and are more like smoke rings than traditional knots.
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+39 +1
Forget Schrödinger's Cat: The Latest Quantum Puzzle Is About Three Pigeons in Two Holes
For decades, Schrödinger’s famous thought experiment involving a cat has been the turn-to illustration of quantum mechanics. But now there’s a new quantum puzzle, which asks: Can three pigeons be placed into two pigeonholes with no two pigeons being in the same hole?
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