In two landmark experiments, researchers used quantum processors to engineer exotic particles that have captivated physicists for decades. The work is a step toward crash-proof quantum computers.
Category: computing – Page 322
Physicists at Delft University of Technology have developed a new technology on a microchip by combining two Nobel Prize-winning methods for the first time. The microchip is capable of accurately measuring distances in materials, which could have applications in areas such as underwater measurement and medical imaging.
The new technology, which utilizes sound vibrations instead of light, could be useful for obtaining high-precision position measurements in materials that are opaque. This breakthrough could result in the development of new methods for monitoring the Earth’s climate and human health. The findings have been published in the journal Nature Communications.
<em>Nature Communications</em> is a peer-reviewed, open-access, multidisciplinary, scientific journal published by Nature Portfolio. It covers the natural sciences, including physics, biology, chemistry, medicine, and earth sciences. It began publishing in 2010 and has editorial offices in London, Berlin, New York City, and Shanghai.
The development demonstrates that China is allegedly at the forefront of the “white-hot technology war between China and the US,” claims Chinese state-run media.
This development encourages the application of brain science research and demonstrates that China is allegedly at the forefront of the “white-hot technology war between China and the US,” according to Chinese state-run media reports on Friday evening.
Chinese researchers claim to have successfully conducted the “world’s first” brain-computer interface (BCI) experiment on a monkey, showcasing China’s BCI technological breakthrough.
“The success of the first animal trial is a breakthrough from zero to one, but getting the success to the clinic is a process from 1 to 100, so we still have a long way to go,” said Ma Yongjie, a neurosurgeon at Beijing-based Xuanwu Hospital Capital Medical University.
According to the rules of thermodynamics, you need infinite time or energy to achieve absolute zero. But a new study says there is another way.
Light, sound, and heat are all types of energy around us. Thermodynamics is a branch of science that helps us understand how energy moves between objects. According to the third law of thermodynamics, it is impossible to cool any object to-273.15 degrees C (or absolute zero), which is the lowest temperature possible.
Now a research team from the Vienna University of Technology in Austria has found a way to cool an object to absolute zero. The study published in PRX Quantum demonstrates this alternate route using quantum computing.
A new low-temperature growth and fabrication technology allows the integration of 2D materials directly onto a silicon circuit, which could lead to denser and more powerful chips.
Researchers from MIT
MIT is an acronym for the Massachusetts Institute of Technology. It is a prestigious private research university in Cambridge, Massachusetts that was founded in 1861. It is organized into five Schools: architecture and planning; engineering; humanities, arts, and social sciences; management; and science. MIT’s impact includes many scientific breakthroughs and technological advances. Their stated goal is to make a better world through education, research, and innovation.
A new kind of 3D optical lattice traps atoms using focused laser spots replicated in multiple planes and could eventually serve as a quantum computing platform.
Researchers have produced 3D lattices of trapped atoms for possible quantum computing tasks, but the standard technology doesn’t allow much control over atom spacing. Now a team has created a new type of 3D lattice by combining optical tweezers—points of focused light that trap atoms—with an optical phenomenon known as the Talbot effect [1]. The team’s 3D tweezer lattice has sites for 10,000 atoms, but with some straightforward modifications, the system could reach 100,000 atoms. Such a large atom arrangement could eventually serve as a platform for a quantum computer with error correction.
3D optical lattices have been around for decades. The standard method for creating them involves crossing six laser beams to generate a 3D interference pattern that traps atoms in either the high-or low-intensity spots (see Synopsis: Pinpointing Qubits in a 3D Lattice). These cold-atom systems have been used as precision clocks and as models of condensed-matter systems. However, the spacing between atoms is fixed by the wavelength of the light, which can limit the control researchers have over the atomic behavior.
An international team of scientists has imaged and analyzed THz waves that propagate in the form of plasmon polaritons along thin anisotropic semiconductor platelets with wavelengths reduced by up to 65 times compared to THz waves in free space.
What’s even more intriguing is that the wavelengths vary with the direction of propagation. Such THz waves can be applied for probing fundamental material properties at the nanometer scale and pave the way to the development of ultra-compact on-chip THz devices. The work has been published in Nature Materials.
Polaritons are hybrid states of light and matter that arise from the coupling of light with matter excitations. Plasmon and phonon polaritons are among the most prominent examples, formed by the coupling of light to collective electron oscillations and crystal lattice vibrations, respectively.
Author and Wordsmith Kel Richards says Quantum computing will do “astonishing things” but the current problem is trying to make them operate at a higher temperature than “below zero centigrade”.
“Quantum computing is apparently … amazingly fast and will do all kinds of astonishing things … the problem at the moment is they have to operate below zero centigrade, otherwise they don’t work, so they’re trying to work out how you can make these really tiny, really fast computers operate at room temperature,” Mr Richards said.
“There is work to be done and if Australia could be in the front of this … brilliant for us.”
Some of Uranus’ moons likely have deep oceans lurking beneath their ice-capped surfaces, a new study by NASA shows.
Two of them, Titania and Oberon, may even have water warm enough to support life.
Scientists have recently pored through decades-old information collected by the veteran Voyager 2 spacecraft, which flew by Uranus in 1986 during its extended space mission. Armed with new computer modeling techniques, researchers reanalyzed the data and concluded four of the ice giant’s 27 moons (opens in a new tab) probably have liquid water sandwiched between their cores and crusts.
AMD CEO, Dr. Lisa Su, states that Moore’s Law is not dead and that innovations such as chiplets & 3D packaging will help overcome the challenges.
Moore’s Law Is Not Dead, Says AMD’s CEO: Working On 3nm, 2nm & Beyond With Latest Innovations
In an interview with Barron’s, AMD CEO, Dr. Lisa Su, points out that Moore’s Law is not dead but has slowed down and things need to be done differently to overcome the performance, efficiency, and cost challenges. AMD has been the pioneer of advancing 3D packaging and chiplet technology with its first HBM designs back in 2015, chiplet processors in 2017, and also the first 3D packaging on a chip with its 3D V-Cache design in 2022.