Category Technology/Electronics

New technology lets Quantum Bits hold Information for 10,000 times Longer than previous record

Conceptual art of the acceptor-based spin-orbit qubit. A boron atom (yellow) implanted in silicon crystal (blue) bounds a hole. Orbital motion of a hole in silicon is coupled to its spin degree of freedom. This coupling is reminiscent of gears where circular motion (blue arrow) and spinning (red arrow) are locked together. Quantum information is encoded to the combined motion and spin of a hole in the spin-orbit qubit. â’¸Takashi Kobayashi, Tohoku University

Quantum bits, or -qubits, can hold quantum information much longer now thanks to efforts by an international research team. The researchers have increased the retention time, or coherence time, to 10 milliseconds – 10,000 times longer than the previous record – by combining the orbital motion and spinning inside an atom...

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Battery-free Game Boy Runs Forever

Ultimate goal of battery-free computing is to reduce society’s reliance on batteries, which are costly, environmentally hazardous and end up in landfills. Credit: Northwestern University

Button pressing and solar energy power the retro gaming device. Researchers develop first-ever battery-free, energy-harvesting, interactive device. And it looks and feels like a retro 8-bit Nintendo Game Boy. It’s a powerful proof-of-concept, developed by researchers at Northwestern University and the Delft University of Technology (TU Delft) in the Netherlands, that pushes the boundaries of battery-free intermittent computing into the realm of fun and interaction.

Instead of batteries, which are costly, environmentally hazardous and ultimately end up in landfills, this device harvests energy from...

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How to make AI Trustworthy

Self-driving car/Photo credit: Grendelkhan
SELF-DRIVING CAR/PHOTO CREDIT: GRENDELKHAN

New tool might aid the adoption of technologies such as autonomous vehicles. One of the biggest impediments to adoption of new technologies is trust in AI.

Now, a new tool developed by USC Viterbi Engineering researchers generates automatic indicators if data and predictions generated by AI algorithms are trustworthy. Their research paper, “There Is Hope After All: Quantifying Opinion and Trustworthiness in Neural Networks” by Mingxi Cheng, Shahin Nazarian and Paul Bogdan of the USC Cyber Physical Systems Group, was featured in Frontiers in Artificial Intelligence.

Neural networks are a type of artificial intelligence that are modeled after the brain and generate predictions...

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Google conducts Largest Chemical Simulation on a Quantum Computer to date

Google conducts largest chemical simulation on a quantum computer to date
Google’s Sycamore processor mounted in a cryostat, recently used to demonstrate quantum supremacy and the largest quantum chemistry simulation on a quantum computer. Credit: Rocco Ceselin

A team of researchers with Google’s AI Quantum team (working with unspecified collaborators) has conducted the largest chemical simulation on a quantum computer to date. In their paper published in the journal Science, the group describes their work and why they believe it was a step forward in quantum computing. Xiao Yuan of Stanford University has written a Perspective piece outlining the potential benefits of quantum computer use to conduct chemical simulations and the work by the team at AI Quantum, published in the same journal issue.

Developing an ability to predict chemical processes by si...

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