The energy wasn’t free it had to be unlocked using knowledge purchased with energy in a far-off location. Those who took a closer look, however, realized that Hotta was suggesting a subtly different quantum stunt. “You can’t extract energy directly from the vacuum because there’s nothing there to give,” said William Unruh, a theoretical physicist at the University of British Columbia, describing the standard way of thinking.īut 15 years ago, Masahiro Hotta, a theoretical physicist at Tohoku University in Japan, proposed that perhaps the vacuum could, in fact, be coaxed into giving something up.Īt first, many researchers ignored this work, suspicious that pulling energy from the vacuum was implausible, at best. It’s a feat that seems to fly in the face of physical law and common sense. For their latest magic trick, physicists have done the quantum equivalent of conjuring energy out of thin air.
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