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Photonic Six Pack Provides Better Quantum Communication
To send a quantum message, it helps to have a photon six-pack. When bound together by a process called quantum entanglement, a set of six photons can withstand the hard knocks that ordinarily would...
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Quantum Computer Simulates Hydrogen Molecule Just Right
Almost three decades ago, Richard Feynman — known popularly as much for his bongo drumming and pranks as for his brilliant insights into physics — told an electrified audience at MIT how to build a...
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Reverse-Engineering a Quantum Compass
If the weird rules of atomic physics do help birds find their way around the globe — as some scientists suspect — a new study has identified ways of finding out how. The study is among the first to...
View ArticleHow to See Quantum Entanglement
Human eyes can detect the spooky phenomenon of quantum entanglement — but only sometimes, a new study on the physics preprint website arXiv.org claims. While eyes can help determine if two individual...
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String Theory Finally Does Something Useful
String theory has finally made a prediction that can be tested with experiments — but in a completely unexpected realm of physics. The theory has long been touted as the best hope for a unified “theory...
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Universe’s Quantum Weirdness Limits Its Weirdness
The more one probes the universe at smaller and smaller scales, the weirder matter and energy seem to behave. But this strangeness may limit its own extent in quantum mechanics, the theory describing...
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Quantum Entanglement Could Stretch Across Time
In the weird world of quantum physics, two linked particles can share a single fate, even when they’re miles apart. Now, two physicists have mathematically described how this spooky effect, called...
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In the Blink of Bird’s Eye, a Model for Quantum Navigation
European robins may maintain quantum entanglement in their eyes a full 20 microseconds longer than the best laboratory systems, say physicists investigating how birds may use quantum effects to “see”...
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Physicists Discover Quantum Speed Limit
Physicists have nailed down the maximum speed limit by which information can travel.
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New Quantum Record: Physicists Entangle 8 Photons
Physicists have created a "Schrödinger cat" state using pieces of light called photons. The researchers entangled eight photons together in a move that might bring control to quantum physics...
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Physicists Create First Long-Distance Quantum Link
Researchers in Germany have built the first true quantum link using two widely separate atoms -- a connection that could be repeated to construct a fully functional quantum computing network.
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Chinese Physicists Smash Quantum Teleportation Record
By Mark Brown, Wired UK A group of Chinese engineers have smashed the records for quantum teleportation, by creating a pair of entangled photons over a distance of almost 100 kilometers. Quantum...
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Laws of Physics Say Quantum Cryptography Is Unhackable. It’s Not
A technique called quantum cryptography can, in principle, allow you to encrypt a message in such a way that it would never be read by anyone whose eyes it isn’t for. But in recent years, methods that...
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