At subatomic level, the past can be the future: quantum researchers squib

The flow of time can go either way in the world of quantum physics, and this rare phenomenon can be observed and measured in a well-designed experiment, according to a new study.One of the most puzzling things about quantum mechanics is that a subatomic particle can have different physical properties at the same time – such as spinning in opposite directions, known as superposition.For almost a century, quantum physicists have been debating whether the law of superposition can be applied to…
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