Summon a 'demon' to turn information into energy

日期:2019-03-07 07:12:01 作者:毋丘酷胁 阅读:

By Stephen Battersby DEMONS can unleash arcane energies in physics as well as fantasy, by turning information into usable energy. A real-life Maxwell’s demon raises the intriguing possibility of tiny machines powered purely by bits. Eiro Muneyuki of Chuo University in Tokyo, Japan, and Masaki Sano of the University of Tokyo and their colleagues have built a version of the demon dreamed up by James Clerk Maxwell in 1867. Maxwell’s demon exploits the random thermal motions of the micro-world. It might watch a tiny ball on a spiral staircase, waiting for the ball to randomly hop up a step,