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Condensed Matter May 31, 2023

Understanding the tantalizing benefits of tantalum for improved quantum processors

Whether it's baking a cake, building a house, or developing a quantum device, the quality of the end product significantly depends on its ingredients or base materials. Researchers working to improve the performance of superconducting ...

Quantum Âé¶¹ÒùÔºics May 31, 2023

New scheme for qubit control in a multilevel system

A team led by Prof. Guo Guangcan from the University of Science and Technology of China (USTC) has made significant progress in the research of multilevel quantum system tunability.

Quantum Âé¶¹ÒùÔºics May 25, 2023

Researchers develop 'noise-canceling' qubits to minimize errors in quantum computers

Despite their immense promise to solve new kinds of problems, today's quantum computers are inherently prone to error. A small perturbation in their surrounding environment— a change in temperature, pressure, or magnetic ...

Optics & Photonics May 23, 2023

Using nuclear spins neighboring a lanthanide atom to create Greenberger-Horne-Zeilinger quantum states

Researchers have experimentally demonstrated a new quantum information storage protocol that can be used to create Greenberger-Horne-Zeilinger (GHZ) quantum states. There is a great deal of interest in these complex entangled ...

Superconductivity May 22, 2023

Stable qubit is a prime candidate for universal quantum computer

Researchers from QuTech improved the so-called "Andreev spin qubit" in a critical way and believe it can become a prime candidate in the pursuit of a perfect qubit. The new type of qubit is created in a more reliable and ...

Optics & Photonics May 18, 2023

Wiring up quantum circuits with light

Quantum computers promise to solve challenging tasks in material science and cryptography that will remain out of reach even for the most powerful conventional supercomputers in the future. Yet, this will likely require millions ...

Quantum Âé¶¹ÒùÔºics May 17, 2023

Team demonstrates quantum advantage on optimization problems with a 5,000-qubit programmable spin glass

Over the past decades, researchers and companies worldwide have been trying to develop increasingly advanced quantum computers. The key objective of their efforts is to create systems that will outperform classical computers ...

Quantum Âé¶¹ÒùÔºics May 16, 2023

New tool to guide efficient energy extraction from quantum sources

The idea that energy is a fundamental driver of societal progress has led to the concept that a civilization's level of technological development can be measured by its ability to harness and use energy. Based on this, Russian ...

Quantum Âé¶¹ÒùÔºics May 11, 2023

Google Quantum AI braids non-Abelian anyons for the first time

Our intuition tells us that it should be impossible to see whether two identical objects have been swapped back and forth, and for all particles observed to date, that has been the case. Until now.

Quantum Âé¶¹ÒùÔºics May 11, 2023

Jellybeans: A sweet solution for overcrowded circuitry in quantum computer chips

The silicon microchips of future quantum computers will be packed with millions, if not billions of qubits—the basic units of quantum information—to solve the greatest problems facing humanity. And with millions of qubits ...

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