Ames Laboratory scientists discovered evidence of the Rashba effect by using extremely strong and powerful bursts of light firing at trillions of cycles per second to switch on or synchronize a “beat” of quantum motion within a material sample; and a second burst of light to “listen” to the beats, triggering an ultrafast receiver to record images of the oscillating state of matter. Credit: US Department of Energy, Ames Laboratory
Scientists have theorized that organometallic halide perovskites— a class of light harvesting “wonder” materials for applications in solar cells and quantum electronics— are so promising due to an unseen yet highly controversial mechanism called the Rashba effect. Scientists at the U.S...
Dr Henry Yang and Professor Andrew Dzurak with a dilution refrigerator designed to keep qubits operating at extremely cold temperatures. Picture: UNSW Sydney
A proof-of-concept study promises warmer, cheaper and more robust quantum computing. And it can be manufactured using conventional silicon chip foundries.
Most quantum computers being developed around the world will only work at fractions of a degree above absolute zero. That requires multi-million-dollar refrigeration and as soon as you plug them into conventional electronic circuits they’ll instantly overheat.
But now researchers led by Professor Andrew Dzurak at UNSW Sydney have addressed this problem...
Researchers have developed the first megapixel photon-counting camera based on single-photon avalanche diode (SPAD) image sensors. The new camera can capture images in faint light at unprecedented speeds. Credit: Arianna M. Charbon, Kazuhiro Morimoto, Edoardo Charbon
Researchers have developed the first megapixel photon-counting camera based on new-generation image sensor technology that uses single-photon avalanche diodes (SPADs). The new camera can detect single photons of light at unprecedented speeds, a capability that could advance applications that require fast acquisition of 3D images such as augmented reality and LiDAR systems for autonomous vehicles.
“Thanks to its high resolution and ability to measure depth, this new camera could make virtual reality more realistic and let...
An international team of researchers have found a new way to speed up quantum computing that could pave the way for huge leaps forward in computer processing power. Scientists from the University of Nottingham and University of Stockholm have sped-up trapped ion quantum computing using a new experimental approach – trapped Rydberg ions; their results have just been published in Nature.
In conventional digital computers, logic gates consist of operational bits that are silicon based electronic devices. Information is encoded in two classical states (“0” and “1”) of a bit. This means that capacities of a classical computer increase linearly with the number of bits. To deal with emerging scientific and industrial problems, large computing facilities or supercomputers are built.
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