Quantum dot

Scientists achieve quantum information storage and retrieval for the first time

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Researchers have produced, stored, and retrieved quantum information for the first time, a critical step in quantum networking. The ability to share quantum information is crucial for developing quantum networks for distributed computing and secure communication. Quantum computing will be useful for solving some important types of problems, such as optimizing financial risk, decrypting data, … Read more

Wastewater turns self-cleaning: New catalyst eliminates harmful pollutants

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Natural water bodies face a concerning threat from emerging contaminants (ECs) like endocrine disruptors, pharmaceuticals, and synthetic dyes, posing a significant risk to public water safety. Although current wastewater treatment technologies are somewhat effective, their limitations in efficiently removing these contaminants, often hydrophobic and present at low concentrations, are evident. In a recent study published … Read more

Machine learning bridges the reality gap in quantum devices

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The University of Oxford has spearheaded a groundbreaking study that harnesses the capabilities of machine learning to tackle a significant challenge in the realm of quantum devices. This pioneering research, detailed in Physical Review X, marks the first successful attempt to bridge the “reality gap” – the variance between predicted and observed behaviors in quantum … Read more

New method for producing organic semiconductors from birch leaves

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Researchers from Umeå University, collaborating with teams in Denmark and China, have unveiled a sustainable breakthrough in semiconductor production. Traditionally, petrochemical compounds and rare metals like platinum and iridium have been essential for crafting semiconductors, particularly for optoelectronics like ultra-thin OLEDs found in modern TV and mobile phone screens. The team, led by Jia Wang … Read more

Scientists discover novel ferromagnetism mechanism in engineered material

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For a magnet to stick to a fridge door, several physical effects inside of it need to work together perfectly. The magnetic moments of its electrons all point in the same direction, even if no external magnetic field forces them to do so. This happens because of the so-called exchange interaction, a combination of electrostatic … Read more

Researchers from delft develop chessboard-like method to address quantum dots

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Delft researchers have achieved a significant breakthrough in the realm of quantum technology. They’ve devised an innovative method reminiscent of a chessboard to manage multiple quantum dots using only a handful of control lines. This pioneering approach allowed them to orchestrate the largest-ever gate-defined quantum dot system. This achievement marks a crucial advancement in the … Read more

Researchers observe quantum state predicted 50 years ago

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Researchers at the Department of Physics, Universität Hamburg, have achieved a significant breakthrough in the field of quantum physics. They successfully observed a quantum state that was first theorized over 50 years ago by Japanese scientists. By creating a specialized artificial atom on a superconductor’s surface, the team managed to pair electrons within a quantum … Read more

Engineering strong anharmonicity in nanotube mechanical resonators

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Quantum information processing (QIP) has the potential to revolutionize technology with its unparalleled computational capabilities, enhanced security, and superior detection sensitivities. The quest to find the best types of qubits, the fundamental units of quantum information, is still ongoing, and various platforms are being explored in research and development. Among the multitude of possibilities, such … Read more

UNSW engineers use jellybean quantum dots to solve wiring challenges in quantum computing

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Engineers at UNSW Sydney have made a significant advancement in quantum computing by introducing a solution known as “jellybean quantum dots.” These elongated areas between qubit pairs create additional space for wiring, allowing for a greater number of qubits to be packed onto a silicon microchip without disrupting their interaction. While the concept of jellybean … Read more

Bilayer graphene unveils robust double quantum dots for quantum computing breakthrough

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Scientists at Forschungszentrum Jülich and RWTH Aachen University have made a groundbreaking discovery in the field of quantum computing. While quantum dots in materials like silicon and gallium arsenide have been considered promising candidates for quantum bits, the researchers have demonstrated that bilayer graphene offers even more potential. The double quantum dots created by the … Read more