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Ytterbium: the Quantum Memory of Tomorrow

Ytterbium: the Quantum Memory of Tomorrow Quantum communication and cryptography are the future of high-security communication. But many challenges lie ahead before a worldwide quantum network can be set up, including propagating the quantum signal over long distances. One of the major challenges is to create memories with the capacity to store quantum information carried by light. Researchers at the University of Geneva (UNIGE), Switzerland, in partnership with CNRS, France, have discovered a new material in which an element, ytterbium, can store and protect the fragile quantum information even while operating at high frequencies. This makes ytterbium an ideal candidate [...]

Discovering new drugs and materials by simulating on a quantum computer

Discovering new drugs and materials by simulating on a quantum computer Last year (2017), on September, a team of researchers at IBM have successfully used their quantum computer, IBM Q, to precisely simulate the molecular structure of beryllium hydride (BeH2). It's the most complex molecule ever given the full quantum simulation treatment.Physicists and chemists routinely use computers to simulate how atoms and molecules behave. Such simulations require massive amounts of computing power, because interactions between three or more interacting particles quickly become devilishly complex. But the electrons inside molecules obey the strange laws of quantum mechanics: it’s impossible to simultaneously [...]

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