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Archive for the ‘quantum physics’ category: Page 3

Nov 14, 2024

Two places at once: superposed crystal could test whether gravity obeys quantum laws

Posted by in category: quantum physics

Method could probe whether a key tenet of quantum mechanics applies to gravity, which has so far resisted quantum theory.

Nov 14, 2024

Unique magnetic properties of 2D triangular lattice materials have potential applications for quantum computing

Posted by in categories: computing, quantum physics

Researchers from a large international team, including ANSTO, have investigated the magnetic properties of two unique 2D triangular lattice antiferromagnetic materials (2D-TLHAF) using various neutron scattering techniques.

Nov 14, 2024

Quantifying the Background Radiation Hitting Superconducting Qubits

Posted by in categories: engineering, quantum physics

Researchers have characterized the naturally occurring background radiation hitting a typical quantum circuit—a result that might help with the engineering of devices that are less vulnerable to radiation-induced decoherence.

Nov 14, 2024

Transparent New Material Paves the Way for Advanced Electronics and Quantum Devices

Posted by in categories: biotech/medical, mobile phones, quantum physics

Researchers at the University of Minnesota have developed a new material poised to revolutionize the next generation of high-power electronics, making them faster, more transparent, and more efficient. This engineered material enables electrons to move at higher speeds while staying transparent to both visible and ultraviolet light, surpassing previous performance records.

The research, published in Science Advances, a peer-reviewed scientific journal, marks a significant leap forward in semiconductor design, which is crucial to a trillion-dollar global industry expected to continue growing as digital technologies expand.

Semiconductors power nearly all electronics, from smartphones to medical devices. A key to advancing these technologies lies in improving what scientists refer to as “ultra-wide band gap” materials. These materials can conduct electricity efficiently even under extreme conditions. Ultra-wide band gap semiconductors enable high-performance at elevated temperatures, making them essential for more durable and robust electronics.

Nov 13, 2024

Embracing The Future Of Cryptography And Identity Management

Posted by in categories: encryption, quantum physics

Looking ahead to 2025, it’s time for organizations to put the right tools and processes in place to prepare for post-quantum cryptography.

Nov 13, 2024

Scientists Think Gravity Might Be a Quantum Field

Posted by in category: quantum physics

And they’re getting closer to confirming it.

Nov 13, 2024

Researchers demonstrate universal control of a quantum dot-based system with four singlet-triplet qubits

Posted by in categories: computing, nanotechnology, quantum physics

Being able to precisely manipulate interacting spins in quantum systems is of key importance for the development of reliable and highly performing quantum computers. This has proven to be particularly challenging for nanoscale systems with many spins that are based on quantum dots (i.e., tiny semiconductor devices).

Nov 12, 2024

How Geometry Revealed Quantum Memory

Posted by in categories: mathematics, quantum physics

The unexpected discovery of a geometric phase shows how math and physics are tightly intertwined.

By Manon Bischoff

I didn’t find math particularly exciting when I was in high school. To be honest, I only studied it when I went to university because it initially seemed quite easy to me. But in my very first math lecture as an undergraduate, I realized that everything I thought I knew about math was wrong. It was anything but easy. Mathematics, I soon discovered, can be really exciting—especially if you go beyond the realm of pure arithmetic.

Nov 12, 2024

New ‘gold-plated’ superconductor could be the foundation for massively scaled-up quantum computers in the future

Posted by in categories: computing, information science, quantum physics

The interface superconductor underwent a transition under a magnetic field and became more robust, the scientists said in the paper This suggests it has transformed into a “triplet superconductor.” — a type of superconductor that is more resistant to magnetic fields than conventional superconductors.

They conducted the research in conjunction with the National Institute of Standards and Technology. In earlier work, they demonstrated that thin films of gold and niobium naturally suppress decoherence — the loss of quantum properties due to external environmental interference.

Given its robust quantum qualities and its ability to suppress decoherence, this new superconducting material promises to be ideal for use in quantum computers, the scientists said. Minimizing decoherence within the system is a key challenge, which necessitates extreme measures to isolate the quantum computer from external influences, such as shifts in temperature or electromagnetic interference, as well as the use of error-correcting algorithms to ensure calculations remain accurate.

Nov 11, 2024

Scientists demonstrate controlled transfer of atoms using coherent tunneling between optical tweezers

Posted by in categories: particle physics, quantum physics

An experimental setup built at the Technion Faculty of Physics demonstrates the transfer of atoms from one place to another through quantum tunneling between optical tweezers. Led by Prof. Yoav Sagi and doctoral student Yanay Florshaim from the Solid State Institute, the research was published in Science Advances.

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