Tag: quantum mechanics
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Demons. Computers. A world of chaos. Death by order.
Physicists have employed a version of Maxwell’s demon to reduce entropy in a three-dimensional lattice of super-cooled, laser-trapped atoms – a process that could help speed progress toward creating quantum computers. (1) A cosmos full of chaos. We struggle into increasing order in the universe. At the end we will succeed. And the cosmos will…
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Quantum memories…
Quantum cryptography today uses optical fiber over several hundred kilometers and is marked by its high degree of security: it is impossible to copy or intercept information without making it disappear. However, the fact that it is impossible to copy the signal also prevents scientists from amplifying it to diffuse it over long distances, as…
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Quantum mechanics. Time. Causality. Irrational. Hiding the meaning of life…
Watch a movie backwards and you’ll likely get confused – but a quantum computer wouldn’t. That’s the conclusion of researcher Mile Gu at the Centre for Quantum Technologies (CQT) at the National University of Singapore and Nanyang Technological University and collaborators. In research published in Physical Review X, the international team showed that a quantum…
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Controlling the uncontrollable. Giving birth to God…
Quantum bits are now easier to manipulate for devices in quantum computing, thanks to enhanced spin-orbit interaction in silicon. (1) The world was born in chaos. And chaos gave birth to us. At the end, we will manage to control everything. And everything will be destroyed. The cosmos will be lost inside the stillness of…
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Quantum sounds.
Quantum physics is on the brink of many technological breakthroughs. However, the main obstacle is finding the right way to couple and precisely control a sufficient number of quantum systems (e.g. individual atoms). A team of researchers from TU Wien and Harvard University has found a new way to manipulate the quantum universe via tiny…
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