Archive for the ‘computing’ category

May 19, 2024

China claims to shakes off US sanction shackle, produces quantum module

Posted by in categories: computing, quantum physics

China claims to develop crucial quantum computing component domestically, hinting at self-reliance amid intensifying US rivalry.

May 19, 2024

UK builds world’s smallest light detector to shrink quantum computers

Posted by in categories: computing, quantum physics

The detector is not just the world’s smallest but also 10 times faster than detectors previously built for quantum light detection.

May 18, 2024

A promising three-terminal diode for wireless communication and optically driven computing

Posted by in category: computing

Two-terminal devices are electronic components connected to electrical circuits via two electrical terminals. Although these components are the key building blocks of most existing devices, they can limit a system’s performance and functions.

May 17, 2024

Deep-sea sponge’s ‘zero-energy’ flow control could inspire new energy efficient designs

Posted by in categories: chemistry, computing, engineering, space

Now, new research reveals yet another engineering feat of this ancient animal’s structure: its ability to filter feed using only the faint ambient currents of the ocean depths, no pumping required.

This discovery of natural ‘“zero energy” control by an international research team co-led by University of Rome Tor Vergata and NYU Tandon School of Engineering could help engineers design more efficient chemical reactors, air purification systems, heat exchangers, hydraulic systems, and aerodynamic surfaces.

In a study published in Physical Review Letters, the team found through extremely high-resolution how the skeletal structure of the Venus flower basket sponge (Euplectella aspergillum) diverts very slow deep sea currents to flow upwards into its central body cavity, so it can feed on plankton and other marine detritus it filters out of the water.

May 17, 2024

Researchers develop world’s smallest quantum light detector on a silicon chip

Posted by in categories: computing, quantum physics

Researchers at the University of Bristol have made an important breakthrough in scaling quantum technology by integrating the world’s tiniest quantum light detector onto a silicon chip. The paper, “A Bi-CMOS electronic photonic integrated circuit quantum light detector,” was published in Science Advances.

May 17, 2024

Quantum Computers Take a Major Step With Error Correction Breakthrough

Posted by in categories: computing, quantum physics

For quantum computers to go from research curiosities to practically useful devices, researchers need to get their errors under control. New research from Microsoft and Quantinuum has now taken a major step in that direction.

Today’s quantum computers are stuck firmly in the “noisy intermediate-scale quantum” (NISQ) era. While companies have had some success stringing large numbers of qubits together, they are highly susceptible to noise which can quickly degrade their quantum states. This makes it impossible to carry out computations with enough steps to be practically useful.

While some have claimed that these noisy devices could still be put to practical use, the consensus is that quantum error correction schemes will be vital for the full potential of the technology to be realized. But error correction is difficult in quantum computers because reading the quantum state of a qubit causes it to collapse.

May 17, 2024

How Quantum Computers Could Illuminate the Full Range of Human Genetic Diversity

Posted by in categories: biotech/medical, computing, genetics, quantum physics

Genomics is revolutionizing medicine and science, but current approaches still struggle to capture the breadth of human genetic diversity. Pangenomes that incorporate many people’s DNA could be the answer, and a new project thinks quantum computers will be a key enabler.

When the Human Genome Project published its first reference genome in 2001, it was based on DNA from just a handful of humans. While less than one percent of our DNA varies from person to person, this can still leave important gaps and limit what we can learn from genomic analyses.

That’s why the concept of a pangenome has become increasingly popular. This refers to a collection of genomic sequences from many different people that have been merged to cover a much greater range of human genetic possibilities.

May 17, 2024

Intel Lunar Lake Mobile Chips to Feature 16GB or 32GB of Embedded Memory

Posted by in category: computing

Intel’s upcoming CPUs for thin-and-light laptops will be its first with on-package memory.

May 17, 2024

Scientists Step Toward Quantum Internet With Experiment Under the Streets of Boston

Posted by in categories: computing, finance, internet, quantum physics, security

A quantum internet would essentially be unhackable. In the future, sensitive information—financial or national security data, for instance, as opposed to memes and cat pictures—would travel through such a network in parallel to a more traditional internet.

Of course, building and scaling systems for quantum communications is no easy task. Scientists have been steadily chipping away at the problem for years. A Harvard team recently took another noteworthy step in the right direction. In a paper published this week in Nature, the team says they’ve sent entangled photons between two quantum memory nodes 22 miles (35 kilometers) apart on existing fiber optic infrastructure under the busy streets of Boston.

“Showing that quantum network nodes can be entangled in the real-world environment of a very busy urban area is an important step toward practical networking between quantum computers,” Mikhail Lukin, who led the project and is a physics professor at Harvard, said in a press release.

May 16, 2024

Researchers achieve ultra-high-Q free space coupling to microtoroid resonators

Posted by in category: computing

Scientists from the University of Arizona have achieved far-field coupling of light to ultra-high quality factor microtoroids using a single objective lens. This could provide the foundation for a fully on-chip multiplexed microtoroid sensing platform.

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