Uma partícula de luz pode parecer deixar uma nuvem de átomos antes de entrar nela, como mostra um novo experimento
- Director, Centre for Quantum Dynamics, Griffith University
A light particle can appear to leave a cloud of atoms before it enters – a new experiment, asking the atoms, confirms the light spends ‘negative time’ with them.
For 60 years, physicists thought they knew exactly how coherent a laser could get. Now the ultimate quantum limit to laser coherence has been found, and it’s much much bigger than anybody thought.
Heisenberg’s famous Uncertainty Principle is put to the test to see if things really are uncertain in the quantum world.
Scientists say they’ve have closed the loopholes on an experiment that tests a half-century old theory in quantum mechanics.So what does it reveal?
Parallel universes – worlds where the dinosaur-killing asteroid never hit, or where Australia was colonised by the Portuguese – are a staple of science fiction. But are they real? In a radical paper published…
Australian quantum computing researchers have developed a new technique for reading the quantum spin of an atom, paving the way for immensely powerful computers connected by a super-fast quantum internet…
The Uncertainty Principle, introduced by Heisenberg in 1927, applies to observations of the properties of the quantum world, which is typically microscopic in scale. As I explained a few months ago, it…
What is a quantum technology? Quantum mechanics is the branch of physics that explains the behaviour of matter and energy at the atomic scale. So does “quantum technology’’ just mean technology based on…
The term “uncertainty principle” suggests some grand philosophical idea, like “you can never be sure of anything”, or “there are some things you can never be sure of” and sometimes people use it as if…
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