PARTÍCULAS ATRAVESSAM UM “MUNDO ESPELHADO” E MUDAM DE IDENTIDADE!

[music] Imagine launching a particle against some kind of invisible boundary. According to classical logic, it could be reflected, absorbed, or pass through. But in the quantum world, physicists have discovered something far stranger. The particle always crosses over, and on the other side it is no longer exactly the same. Instead of reappearing as an

ordinary particle, it emerges as a kind of quantum fog attached to an invisible thread that remains connected to the boundary. It sounds like science fiction, but this phenomenon has just been mathematically demonstrated in a quantum system that can, in principle, be simulated experimentally. The work was carried out by researchers from the universities of Ghent,

Cambridge and Oxford and published in the journal Nature Physics. And it may help solve one of the most curious enigmas involving so-called magnetic monopoles. In nature, the magnets we know always have two poles: north and south. But theoretical physics predicts the possibility of something very different existing: a magnetic monopole with only one magnetic pole.

These particles have never been conclusively observed, but they appear in important theories of physics. In the 1980s, physicists Kurt Callan and Valery Rubakov studied what would happen if an electrically charged particle interacted with a magnetic monopole, and a perplexing problem arose. After the interaction, it seemed that the particle simply disappeared from the

conventional description of the theory. It was as if she had entered a region where known rules couldn't tell her where she was going. For decades, this problem remained a true theoretical ghost. Now, researchers have found a way to visualize what might be happening. To do this, the scientists studied a quantum system called a