HomeNewsPhysicsDo we distil reality from the quantum fog or does it exist...

Do we distil reality from the quantum fog or does it exist without us?


Quantum objects exist as clouds of possibilities, only manifesting as something definite when we look at them. The implication is that we make reality – but objectivity may yet be rescued



Physics



25 August 2021

Skizzomat

QUANTUM stuff, whether single atoms, electrons or photons of light, is notorious for seeming to be here, there and everywhere – and indeed everything – all at once. It exists as clouds of possibilities, manifested in a beast you can’t get around when contemplating quantum mysteries: the wave function.

On one level, the wave function is just a mathematical expression that lets you calculate the probability a particle will manifest in a particular location, say. The mystery is the way the maths says that, once you look at it, the wave function “collapses” to leave something definite we can all agree …



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