IBM on its '5 in 5' predictions for 2019 Jeff Welser, vice president and lab director at IBM Research - Almaden, sits down with Tonya Hall to talk about IBM's latest 5 in 5 announcement. Last week's issue of Nature magazine contained some intriguing work by IBM and MIT concerning how to implement machine learning on a quantum computer. The work suggests aspects of machine learning where quantum could actually have a measurable advantage over classical, meaning, electronic, and computers. Whether that adds up to a "killer app" for quantum is less certain. It's not enough to do something in quantum computing that's hard to do in classical computing; it has to be something that's worth doing. Researchers at IBM's T.J. Watson Research Center, including Vojtěch Havlíček, Antonio D. Córcoles, Kristan Temme, Abhinav Kandala, Jerry M. Chow and Jay M. Gambetta, teamed up with Aram W. Harrow of MIT's Center for Theoretical Physics, to author the … [Read more...] about Is IBM’s AI demonstration enough for a quantum killer app?
Stanford quantum computing
By Daniel GaristoFeb. 14, 2019 , 3:50 PM For decades, atomic physicists have used laser light to slow atoms zinging around in a gas, cooling them to just above absolute zero to study their weird quantum properties. Now, a team of scientists has managed to similarly cool an object—but with the absence of light rather than its presence. The technique, which has never before been experimentally shown, might someday be used to chill the components in microelectronics. In an ordinary laser cooling experiment, physicists shine laser light from opposite directions—up, down, left, right, front, back—on a puff of gas such as rubidium. They tune the lasers precisely, so that if an atom moves toward one of them, it absorbs a photon and gets a gentle push back toward the center. Set it up just right and the light saps away the atoms' kinetic energy, cooling the gas to a very low temperature. But Pramod Reddy, an applied physicist at the University of Michigan in Ann Arbor, … [Read more...] about Physicists create a quantum refrigerator that cools with an absence of light
In 1994, a mathematician at AT&T Research named Peter Shor brought instant fame to “quantum computers” when he discovered that these hypothetical devices could quickly factor large numbers — and thus break much of modern cryptography. But a fundamental problem stood in the way of actually building quantum computers: the innate frailty of their physical components. Quanta Magazine About Original story reprinted with permission from Quanta Magazine, an editorially independent publication of the Simons Foundation whose mission is to enhance public understanding of science by covering research developments and trends in mathematics and the physical and life sciences. Unlike binary bits of information in ordinary computers, “qubits” consist of quantum particles that have some probability of being in each of two states, designated |0⟩ and |1⟩, at the same time. When qubits interact, their possible states become interdependent, each … [Read more...] about Space and Time Could Be a Quantum Error-Correcting Code
We're facing 25 years of prosperity, freedom, and a better environment for the whole world. You got a problem with that? A bad meme - a contagious idea - began spreading through the United States in the 1980s: America is in decline, the world is going to hell, and our children's lives will be worse than our own. The particulars are now familiar: Good jobs are disappearing, working people are falling into poverty, the underclass is swelling, crime is out of control. The post-Cold War world is fragmenting, and conflicts are erupting all over the planet. The environment is imploding - with global warming and ozone depletion, we'll all either die of cancer or live in Waterworld. As for our kids, the collapsing educational system is producing either gun-toting gangsters or burger-flipping dopes who can't read. By the late 1990s, another meme began to gain ground. Borne of the surging stock market and an economy that won't die down, this one is more positive: America is finally getting its … [Read more...] about The Long Boom: A History of the Future, 1980
Before the invention of the computer, most experimental psychologists thought the brain was an unknowable black box. You could analyze a subject's behavior—ring bell, dog salivates—but thoughts, memories, emotions? That stuff was obscure and inscrutable, beyond the reach of science. So these behaviorists, as they called themselves, confined their work to the study of stimulus and response, feedback and reinforcement, bells and saliva. They gave up trying to understand the inner workings of the mind. They ruled their field for four decades. Then, in the mid-1950s, a group of rebellious psychologists, linguists, information theorists, and early artificial-intelligence researchers came up with a different conception of the mind. People, they argued, were not just collections of conditioned responses. They absorbed information, processed it, and then acted upon it. They had systems for writing, storing, and recalling memories. They operated via a logical, formal syntax. The … [Read more...] about Soon We Won’t Program Computers. We’ll Train Them Like Dogs