quantum physics

Hotta found, to his surprise, that a simple sequence of events could, in fact, induce the quantum vacuum to go negative—giving up energy it didn’t appear to have. “First I thought I was…

It’s a radical view of quantum behavior that many physicists take seriously. “I consider it completely real,” said Richard MacKenzie, a physicist at the University of Montreal.But how can an…

Intriguingly, this kind of decoherence will occur anywhere there is a horizon that only allows information to travel in one direction, creating the potential for causality paradoxes. The…

New York-based quantum computer startup SEEQC said on Wednesday it has developed a digital chip that can operate at temperatures colder than outer space so it can be used with quantum…

In classical physics, a vacuum is a total void—a true manifestation of nothingness. But quantum physics says that empty space isn’t really empty. Instead, it’s buzzing with “virtual”…

Physicists have coaxed particles of light into undergoing opposite transformations simultaneously, like a human turning into a werewolf as the werewolf turns into a human. In carefully…

Cosmologists have spent decades striving to understand why our universe is so stunningly vanilla. Not only is it smooth and flat as far as we can see, but it’s also expanding at an…

“There are some configurations of the future that don’t correspond to anything in the past,” Cotler said. “There’s nothing in the past that would evolve into them.”Giddings has proposed a…

When electrons couple up, further quantum trickery makes superconductivity unavoidable. Normally, electrons can’t overlap, but Cooper pairs follow a different quantum mechanical rule; they…

Last month, three scientists won the Nobel Prize in Physics for their work proving one of the most counterintuitive yet consequential realities of the quantum world. They showed that two…