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Plans for secure quantum internet take a leap forward
The ability to ‘sculpt’ individual photons is a crucial step towards a secure network of powerful quantum computers.
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A new 1152 Qubit Quantum annealing system will be released in March 2015 by D-wave Systems
D-Wave is making fantastic progress in fabricating ever-larger processors. In fact, we will be releasing our new 1,152-qubit “Washington” processor in March of this year. So we’re all very excited about that. However, size is not the only aspect of the processor that has been improved. We have also lowered the noise and stretched the energy scale of the qubits (making them inherently more quantum mechanical), and we have strengthened our ability to create chains of qubits...
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Two quantum properties teleported together for first time
The values of two inherent properties of one photon – its spin and its orbital angular momentum – have been transferred via quantum teleportation onto another photon for the first time by physicists in China. Previous experiments have managed to teleport a single property, but scaling that up to two properties proved to be a difficult task, which has only now been achieved. The team's work is a crucial step forward in improving our understanding of the fundamentals of quantum mechanics...
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Quantum weirdness passes the atomic walk test
It's time we embraced quantum mechanics and stopped trying to explain away its weirdness.
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No, You Cannot Catch an Individual Photon Acting Simultaneously as a Pure Particle and Wave
Asking questions that don't muddy the waters about wave-particle duality.
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Researchers develop the first-ever quantum device that detects and corrects its own errors
When scientists develop a full quantum computer, the world of computing will undergo a revolution of sophistication, speed and energy efficiency that will make even our beefiest conventional machines seem like Stone Age clunkers by comparison. But, before that happens, quantum physicists like the ones in UC Santa Barbara’s physics professor John Martinis’ lab will have to create circuitry that takes advantage of the marvelous computing prowess promised by the quantum bit...
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Quantum radar can detect what’s invisible to regular radar
The latest application of entangled particles uses correlations between entangled microwave and optical beams to detect objects of low reflectivity, creating in effect, a quantum radar.
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Quantum experiment verifies Einstein's 'spooky action at a distance'
Scientists have for the first time demonstrated Albert Einstein's original conception of 'spooky action at a distance' using a single particle.
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Thousands of atoms entangled with a single photon
Physicists have developed a new technique that can successfully entangle 3,000 atoms using only a single photon. The results represent the largest number of particles that have ever been mutually entangled experimentally.
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Entangled photons cast a new light on cause and effect
Correlation can imply causation in the quantum world, say physicists
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Helium atoms put in same quantum state, start appearing in same place
Quantum mechanics has so many counterintuitive features that it seems possible to learn a new one every month. Today's lesson involves particles that are set into the same quantum state and effectively become indistinguishable. Once they are indistinguishable, they start behaving that way, showing up in the same place even when we'd expect to see them distributed at random.
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Wormholes Untangle a Black Hole Paradox
One hundred years after Albert Einstein developed his general theory of relativity, physicists are still stuck with perhaps the biggest incompatibility problem in the universe. The smoothly warped space-time landscape that Einstein described is like a painting by Salvador Dalí — seamless, unbroken, geometric. But the quantum particles that occupy this space are more like something from Georges Seurat: pointillist, discrete, described by probabilities.
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Can quantum computing change the world? This start-up is betting on it.
Imagine a computer that could sift through millions of financial transactions in real time to detect fraud or look for signs of insider trading, and do it exponentially faster than the most powerful computers in the world today. A Washington start-up is betting that such a machine can be built in the not-too-distant future, using the mysterious principles of quantum computing.
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How Quantum Pairs Stitch Space-Time
New tools may reveal how quantum information builds the structure of space.
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Quantum computing is about to overturn cybersecurity’s balance of power
“Spooky action at a distance” is how Albert Einstein described one of the key principles of quantum mechanics: entanglement. Entanglement occurs when two particles become related such that they can coordinate their properties instantly even across a galaxy. Think of wormholes in space or Star Trek transporters that beam atoms to distant locations. Quantum mechanics posits other spooky things too: particles with a mysterious property called superposition, which allows them to have a...
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How spacetime is built by quantum entanglement
A collaboration of physicists and a mathematician has made a significant step toward unifying general relativity and quantum mechanics by explaining how spacetime emerges from quantum entanglement in a more fundamental theory..
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The Sound of a Single Atom
Every ping is an atom hitting the surface. Incredible.
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Strange behavior of quantum particles may indicate the existence of other parallel universes
It started about five years ago with a practical chemistry question. Little did Bill Poirier realize as he delved into the quantum mechanics of complex molecules that he would fall down the rabbit hole to discover evidence of other parallel worlds that might well be poking through into our own, showing up at the quantum level. The Texas Tech University professor of chemistry and biochemistry said that quantum mechanics is a strange realm of reality.
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At near absolute zero, molecules may start to exhibit exotic states of matter
The air around us is a chaotic superhighway of molecules whizzing through space and constantly colliding with each other at speeds of hundreds of miles per hour. Such erratic molecular behavior is normal at ambient temperatures.
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A Private View of Quantum Reality
Quantum theorist Christopher Fuchs explains how to solve the paradoxes of quantum mechanics.
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