Lifeboat Foundation

After an internal investigation, the US Department of Defense (DoD) announced that is standing by its decision to award the $10 billion JEDI cloud computing contract to Microsoft and not Amazon. The probe was triggered after Amazon complained that the integrity of the bidding process was cast into doubt because of statements by President Trump.

The Pentagon affirmed its initial decision awarding the contract to Microsoft, but acknowledged that the legal battle isn’t over. In a press release, it said it “determined that Microsoft’s proposal continues to represent the best value to the government” but added that the contract “will not begin immediately.” That’s because of a temporary injunction issued over an Amazon lawsuit arguing that the contract had “clear deficiencies, errors and unmistakable bias.”

Quantum technologies, such as quantum computers, quantum sensing devices and quantum memory, have often been found to outperform traditional electronics in speed and performance, and could thus soon help humans to tackle a variety of problems more efficiently. Despite their huge potential, most quantum systems are inherently susceptible to errors and noise, which poses a serious challenge to implementing and using them in real-world settings.

If Mad Max bikes were electric they would probably look like this design rendering from Shane Baxley. An electric power unit, orbital wheels, two-sided swingarm, manual transmission and a raw minimalistic bodywork complete the package.

Hollywood-based concept artist and vehicle designer Shane Baxley created this motorcycle design rendering on his computer. And it looks mind-boggling. The electric motorcycle design features cyberpunk lines and wheels without hubs. The idea of a hubless wheel bike is not new as it was conceived by an Italian designer, Franco Sbarro, in the 1980s.

To create a striking visual effect, the electric motorcycle is fitted with spokeless wheels equipped with knobby tires. As we said before, the wheels are hubless and the functionality of the wheel hub is taken over by the rim while the two-sided swingarm is connected to the inside of the bike at three points at the front and rear.

:ooooo.

Massive multi-gigapixel images are starting to become a little more common now, with today’s computing power being what it is. But they still rarely fail to impress. Especially when they cover vast distances and include a lot of detail to zoom in on. This massive 195-Gigapixel image comes from Shanghai, shot from the top of Shanghai’s Oriental Pearl Tower.

Continue reading “You have to see this 195 billion pixel image shot from Shanghai’s Oriental Pearl Tower” »

A heptagonal-lattice superconducting circuit, and the mathematics that describe it, provide tools for studying quantum mechanics in curved space.

According to John Wheeler’s summary of general relativity, “space-time tells matter how to move; matter tells space-time how to curve.” How this relationship plays out at the quantum scale is not known, because extending quantum experiments to curved space poses a challenge. In 2019, Alicia Kollár and colleagues at Princeton University met that challenge with a photonic circuit that represents the negatively curved space of an expanding universe [1]. Now, Igor Boettcher and colleagues at the University of Maryland, College Park, describe those experiments with a new theoretical framework [2]. Together, the studies offer a toolkit for studying quantum mechanics in curved space that could help answer fundamental questions about cosmology.

In a universe that expands at an accelerating rate, space curves away from itself at every point, producing a saddle-like, hyperbolic geometry. To project hyperbolic space onto a plane, Kollár’s team etched a centimeter-sized chip with superconducting resonators arranged in a lattice of heptagonal tiles. By decreasing the tile size toward the edge of the chip, the researchers reproduced a perplexing property of hyperbolic space: most of its points exist on its boundary. As a result, photons moving through the circuit behave like particles moving in negatively curved space.

First photonic quantum computer on the cloud.

Even quantum computers make mistakes. Their computing ability is extraordinary, exceeding that of classical computers by far. This is because circuits in quantum computers are based on qubits that can represent not only zeroes or ones, but also superpositions of both states by using the principles of quantum mechanics. Despite their great potential, qubits are extremely fragile and prone to errors due to the interactions with the external environment.

To solve this crucial issue, an international research group developed and implemented a new protocol that protects fragile quantum information and corrects errors due to qubit loss. This research group published the results of their study in Nature.

“Developing a fully functioning quantum processor still represents a great challenge for scientists across the world,” explains Davide Vodola who is one of the authors of the study as well as a researcher at the University of Bologna. “This research allowed us, for the first time, to implement a protocol that can detect and, at the same time, correct errors due to qubit loss. This ability could prove to be essential for the future development of large-scale quantum computers.”

Managing the heat generated in electronics is a huge problem, especially with the constant push to reduce the size and pack as many transistors as possible in the same chip. The whole problem is how to manage such high heat fluxes efficiently. Usually, electronic technologies, designed by electrical engineers, and cooling systems, designed by mechanical engineers, are done independently and separately. But now, EPFL researchers have quietly revolutionized the process by combining these two design steps into one: They’ve developed an integrated microfluidic cooling technology together with the electronics that can efficiently manage the large heat fluxes generated by transistors. Their research, which has been published in Nature, will lead to even more compact electronic devices and enable the integration of power converters, with several high-voltage devices, into a single chip.

The best of both worlds

In this ERC-funded project, Professor Elison Matioli, his doctoral student Remco Van Erp, and their team from the School of Engineering’s Power and Wide-band-gap Electronics Research Laboratory (POWERLAB), began working to bring about a real change in designing electronic devices by conceiving the electronics and cooling together, right from the beginning. The group sought to extract the heat very near the regions that heat up the most in the device. “We wanted to combine skills in electrical and mechanical engineering in order to create a new kind of device,” says Van Erp.

The research team of Assistant Professor Masahiko Sato and Professor Yasushi Todo of the National Institutes of Natural Sciences (NINS) National Institute for Fusion Science (NIFS) has succeeded using computer simulation in reproducing the high-pressure plasma confinement observed in the Large Helical Device (LHD). This result has enabled highly accurate predictions of plasma behavior aimed at realizing an economical helical fusion reactor.

In order to realize fusion energy, we must confine high pressure plasma using the magnetic field for a long duration. Although higher pressure plasma can be confined by a stronger magnetic field, it costs more to generate a stronger magnetic field using electromagnetic coils. Therefore, if the magnetic field strength is the same, a device that can confine higher pressure plasma is economically desirable. Because the LHD has succeeded in maintaining high-pressure plasma, there is great expectation in realizing a helical fusion reactor.

Design research for a future fusion reactor is performed based on computer simulations predicting the behavior of magnetically confined plasma. We require highly accurate simulations. To confirm the accuracy, the simulations are required to reproduce the experimental results obtained by the existing devices. However, the simulations had not reproduced the experimental results obtained by the LHD showing that high-pressure plasma is maintained. This has been a serious problem for the design research for an economical helical fusion reactor.