(That's what you're feeling when the sun's rays cross space to beat on your face on a summer day.) Otherwise, in standard physical models, heat moves in two manners: First, energized particles can knock into other particles and transfer their energy. Under normal circumstances, heat can cross a vacuum in only one manner: in the form of radiation. (Image credit: Violet Carter, UC Berkeley) The difficulty is that no one's ever made a quantum computer fast enough to take advantage of those theoretical advantages - or at least no one had, until Google's feat this year.Ī photo shows the experimental device that allowed heat to cross empty space. They can easily break classical encryption schemes, send perfectly encrypted messages, run some simulations faster than classical computers can and generally solve hard problems very easily.
In theory, that quality gives these machines certain advantages over classical computers. Quantum computers rely on strange small-scale physical effects like entanglement, as well as certain basic uncertainties in the nano-universe, to perform their calculations. Google's quantum supremacy claim, if borne out, would mark an inflection point in the history of computing. (The category of classical computers includes any machine that relies on regular old 1s and 0s, such as the device you're using to read this article.) If one quantum news item from 2019 makes the history books, it will probably be a big announcement that came from Google: The tech company announced that it had achieved " quantum supremacy." That's a fancy way of saying that Google had built a computer that could perform certain tasks faster than any classical computer could.
0 kommentar(er)
