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Quantum Physics news

Atoms may hum a tune from grand cosmic symphony

Researchers playing with a cloud of ultracold atoms uncovered behavior that bears a striking resemblance to the universe in microcosm. Their work, which forges new connections between atomic physics and the sudden expansion ...

dateApr 19, 2018 in Quantum Physics
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Quantum physicists achieve entanglement record

Entanglement is of central importance for the new quantum technologies of the 21st century. A German-Austrian research team is now presenting the largest entangled quantum register of individually controllable systems to ...

dateApr 16, 2018 in Quantum Physics
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Easing uncertainty

Heisenberg's uncertainty principle, the fundamental impossibility of simultaneously measuring properties such as position and momentum, is at the heart of quantum theory. Physicists at ETH Zurich have now demonstrated an ...

dateApr 03, 2018 in Quantum Physics
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New math bridges holography and twistor theory

The modern-day theoretical physicist faces a taxing uphill climb. "As we learn more, reality becomes ever more subtle; the absolute becomes relative, the fixed becomes dynamical, the definite is laden with uncertainty," writes ...

OpenFermion practice tool for quantum computer coding

In a global effort, researchers are working toward quantum computers. In the meantime, they have to learn how to write code for these devices, which are fundamentally different from conventional computers. A collaboration ...

Quantum speed-up predicted for charging quantum batteries

While batteries have been improving in recent times, at their core today's batteries still operate on the same basic electrochemical principles developed in the 18th and 19th centuries. Some physicists are now wondering whether ...

Putting quantum scientists in the driver's seat

Scientists at the Department of Energy's Oak Ridge National Laboratory are conducting fundamental physics research that will lead to more control over mercurial quantum systems and materials. Their studies will enable advancements ...

Molecular prison forces diatomic inmates to cell floor

A team of scientists including Carnegie's Tim Strobel and Venkata Bhadram now report unexpected quantum behavior of hydrogen molecules, H2, trapped within tiny cages made of organic molecules, demonstrating that the structure ...

Physicists reveal material for high-speed quantum internet

Researchers from the Moscow Institute of Physics and Technology have rediscovered a material that could be the basis for ultra-high-speed quantum internet. Their paper published in npj Quantum Information shows how to increase ...

Physicists made crystal lattice from polaritons

An international research team produced an analog of a solid-body crystal lattice from polaritons, hybrid photon-electron quasiparticles. In the resulting polariton lattice, the energy of certain particles does not depend ...

Quantum speed limits are not actually quantum

Quantum mechanics has fundamental speed limits—upper bounds on the rate at which quantum systems can evolve. However, two groups working independently have published papers showing for the first time that quantum speed ...

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