The USC Viterbi School of Engineering is home to the USC-Lockheed Martin Quantum Computing Center (QCC), a super-cooled, magnetically shielded facility specially built to house the first commercially available quantum computing processors. There are only two in use, and elaborate tests on the quantum processor, called D-Wave, indicate that it does use special laws of quantum mechanics to operate.
According to recent findings by an international...
Last year, a physicist and a mechanical engineer...
Computer chips keep getting faster because transistors keep getting smaller. But the chips themselves are as big as ever, so data moving around the chip, and between chips and main memory, has to travel just as far. As transistors get faster, the cost of moving data becomes, proportionally, a more severe limitation. So far, chip designers have circumvented that limitation through the use of “caches”.
For aspiring electrical engineers, New Jersey Institute of Technology has pulled together in one “tall” infographic a brief history of the breakthroughs and impact of electrical engineering advances since the 1830s, when the telegraph marked the first time that electric currents were used to transmit messages. Since then, electrical devices have a dramatic effect on our daily lives.
European scientists from both academia and industry have begun an ambitious new research project focused on an alternative approach to extend Moore's Law. The research project, coordinated IBM Research in Zurich and called COMPOSE³, is based on the use of new materials to replace today's silicon, and on taking an innovative design approach where transistors are stacked vertically, known as 3-D stacking.
Seeking a solution to decoherence, scientists have developed a strategy of linking quantum bits together into voting blocks, a strategy that significantly boosts their accuracy. In a recently published paper, the team found that their method results in at least a five-fold increase in the probability of reaching the correct answer when the processor solves the largest problems tested by the researcher, involving hundreds of qubits.
Continuous miniaturization in microelectronics is nearing physical limits, so researchers are seeking new methods for device fabrication. One promising candidate is a DNA origami technique in which individual strands of the biomolecule self-assemble into arbitrarily-shaped nanostructures. A new simpler strategy combines DNA origami with self-organized pattern formation to do away with elaborate procedures for positioning DNA structures.
Scientists and engineers from an international collaboration have, for the first time, generated and manipulated single particles of light (photons) on a silicon chip. This accomplishment, which required shrinking down key components and integrating them onto a silicon microchip, is a major step forward in the race to build a quantum computer.
Scientists in Germany, inspired by the odor-processing nervous system of insects, have recently refined a new technology that is based on parallel data processing. Called neuromorphic computing, their system is composed of silicon neurons linked together in a similar fashion to the nerve cells in our brains. If the assembly is fed with data, all silicon neurons work in parallel to solve the problem.
“Cool it!” That’s a prime directive for microprocessor chips and a promising new solution to meeting this imperative is in the offing. Researchers with the U.S. Dept. of Energy’s Lawrence Berkeley National Laboratory have developed a process-friendly technique that would enable the cooling of microprocessor chips through carbon nanotubes.
Intel Corp., the world's largest maker of computer processors, says its processors are now free of minerals from mines held by armed groups in the Democratic Republic of the Congo. It's the first major U.S. technology company to make such a claim about its products.
A 310-foot "crop circle" in a California barley field that mystified locals this week was explained Sunday: it was a publicity stunt by Nvidia Corp., a maker of chips for PCs and smartphones. The company has announced the Tegra K1, a new chip for tablets and smartphones that contains 192 computing "cores," or mini-computers, for graphics applications.
The Advanced Institute for Computational Science at RIKEN has been selected by the Japanese government to develop a new exascale supercomputer. The new supercomputer, which is scheduled to begin working in 2020, will compute on the "exaflop" scale and will be about 100 times faster than the K computer which was the world’s fastest in 2011.
Researchers have proved the feasibility of a new type of transistor that could enable fast and low-power computing devices for energy-constrained applications such as smart sensor networks and implantable medical electronics. Called a near broken-gap tunnel field effect transistor, the new device uses the quantum mechanical tunneling of electrons through an ultra-thin energy barrier to provide high current at low voltage.
A recently developed plasma-based chip fabrication technique affords chip makers unprecedented control of plasma thanks to a population of suprathermal electrons. This is critical to modern microchip fabrication, but how the beam electrons transform themselves into this suprathermal population has been a puzzle. New computer simulations reveal how intense plasma waves generate suprathermal electrons.
Our brains have upwards of 86 billion neurons, connected by synapses that not only complete myriad logic circuits; they continuously adapt to stimuli, strengthening some connections while weakening others. Materials scientists have now created a new type of transistor that mimics the behavior of a synapse. The novel device simultaneously modulates the flow of information in a circuit and physically adapts to changing signals.
The San Diego Supercomputer Center at the Univ. of California, San Diego, has been awarded a grant from the National Science Foundation to build Comet, a new petascale supercomputer designed to transform advanced scientific computing by expanding access and capacity among research domains. Comet will be capable of an overall peak performance of nearly two petaflops, or two quadrillion operations per second.
An industry-academic partnership has created two different optical components that can be fabricated within the same processes already used in industry to create today’s electronic microprocessors. The modulators, which are structures that detect electrical signals and translate them into optical waves, use light instead of electrical wires to communicate with transistors on a single chip.
During this week’s Intel Developer Forum, new Intel CEO Brian Krzanich announced a number of near-term changes for the company’s product line, including new LTE and 14-nm products, and a lower-power product family called Quark directed at future wearable electronics devices.
Unlike the building blocks of conventional hard disk drives and memories, resistive memory cells (ReRAM) are active electrochemical components. In these cells, ions generate voltage on electrodes in a similar manner to a battery. Researchers in Europe have conducted an extensive study of ReRAMs, also described as memristors, and have found previously undiscovered sources of voltage in these devices.
Still among the 25 fastest supercomputers in the world, the $121 million Roadrunner at Los Alamos National Laboratory was decommissioned Sunday. Roadrunner, constructed with the help of IBM, was the first to break the petaflop barrier in 2008, and was unusual at the time for being entirely built out of commercially available parts. Its replacement is smaller, cheaper, and faster.
Two years ago, a research team in Switzerland revealed the promising electronic properties of molybdenite, a mineral that is abundant in nature. Several months later, they demonstrated the possibility of building an efficient molybdenite chip. Today, they've combined two materials with advantageous electronic properties—graphene and molybdenite—into a promising flash memory prototype.
A variety of solid-state systems are currently being investigated as candidates for quantum bits of information, or qubits. One such qubit, a quantum dot, is made of semiconductor nanocrystals embedded in a chip, but the quality of photons generated from solid-state qubits can be low due to decoherence. Now, researchers in the U.K. have generated single photons with tailored properties from solid-state devices that are identical in quality to lasers
Imagine that the chips in your smartphone or computer could repair and defend themselves on the fly, recovering in microseconds from problems ranging from less-than-ideal battery power to total transistor failure. It might sound like the stuff of science fiction, but a team of engineers at the California Institute of Technology, for the first time ever, has developed just such self-healing integrated chips.
Memristors are made of fine nanolayers and can be used to connect electric circuits and for several years have been considered to be the electronic equivalent of the synapse. A researcher in Germany, physicist Andy Thomas, is now using his memristors as key components for his blueprint for an artificial brain.
Stretched-out clothing might not be a great practice for laundry day, but in the case of microprocessor manufacture, stretching out the atomic structure of the silicon in the critical components of a device can be a good way to increase a processor's performance.
Researchers at Columbia University are attempting to build self-powered systems using nanoscale devices that can transmit and receive wireless signals using so little power that their batteries never need replacing. Some of the chips built so far are 100 times more energy efficient than most standard technologies, and they rely on tiny bits of ambient solar energy to recharge themselves.
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