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Complete design of a silicon quantum computer chip unveiled

Research teams all over the world are exploring different ways to design a working computing chip that can integrate quantum interactions. Now, engineers believe they have cracked the problem, reimagining the silicon microprocessors we know to create a complete design for a quantum computer chip that can be manufactured using mostly standard industry processes and components. 7 more words

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Superradiance of an ensemble of nuclei excited by a free electron laser

Scientists have succeeded in verifying a basic prediction of the quantum-mechanical behavior of resonant systems. They were able to carefully follow, one x-ray at a time, the decay of nuclei in a perfect crystal after excitation with a flash of x-rays. 26 more words

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Single-photon detector can count to four

Engineers have shown that a widely used method of detecting single photons can also count the presence of at least four photons at a time. The researchers say this discovery will unlock new capabilities in physics labs working in quantum information science around the world, while providing easier paths to developing quantum-based technologies. 6 more words

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Error-free into the quantum computer age

A study led by physicists at Swansea University in Wales, carried out by an international team of researchers and published in the journal Physical Review X shows that ion-trap technologies available today are suitable for building large-scale quantum computers. 19 more words

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Real-time observation of collective quantum modes

A cylindrical rod is rotationally symmetric – after any arbitrary rotation around its axis it always looks the same. If an increasingly large force is applied to it in the longitudinal direction, however, it will eventually buckle and lose its rotational symmetry. 88 more words

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Superradiance of an ensemble of nuclei excited by a free electron laser

A collaboration of scientists from five of the world’s most advanced x-ray sources in Europe, Japan and the US, has succeeded in verifying a basic prediction of the quantum-mechanical behavior of resonant systems. 95 more words

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Complete design of a silicon quantum computer chip unveiled

Research teams all over the world are exploring different ways to design a working computing chip that can integrate quantum interactions. Now, UNSW engineers believe they have cracked the problem, reimagining the silicon microprocessors we know to create a complete design for a quantum computer chip that can be manufactured using mostly standard industry processes and components. 6 more words

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