Quantum dots

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

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

Scientists develop new way to “paint” with DNA, create 16 million colors

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Scientists at the University of Vienna have achieved a significant breakthrough in manipulating DNA. They have harnessed the unique ability of DNA’s complementary sequences to form stable duplexes. By strategically introducing imperfect complementary sequences and using fluorescent markers, they’ve expanded the color palette of DNA duplexes from a mere 256 colors to an astonishing 16 … Read more

Quantum dots and orbital angular momentum enable hybrid entanglement for quantum technology

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The future of quantum technology hinges on harnessing intricate principles of quantum mechanics, such as high-dimensional quantum states, which serve as the fundamental building blocks of quantum information science and technology. Scientists have grappled with a challenging task: producing exceptionally bright single photons with a property known as orbital angular momentum (OAM), governing the twisting … Read more

Quantum mpemba effect observed in wide range of initial conditions

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The question of whether hot water freezes faster than cold water has intrigued scientists for centuries. This phenomenon, known as the Mpemba effect, was initially examined by Aristotle and involves the counterintuitive observation that sometimes hot water appears to freeze more quickly than cold water. Over time, the Mpemba effect has been observed in various … 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

Imec integrates pinned photodiode structure in thin-film image sensors

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Imec, a pioneering research hub in nanoelectronics and digital technologies, has achieved a significant breakthrough by successfully integrating a pinned photodiode (PPD) structure into thin-film image sensors. Their groundbreaking study, featured in the August 2023 issue of Nature Electronics, titled “Thin-film Image Sensors with Pinned Photodiode Architecture,” was initially unveiled at the 2023 International Image … 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

Unveiling new frontiers: Exploring wave chaos phenomena in optical microcavities for quantum advances and technological breakthroughs

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The intriguing realm of optical microcavities presents an exciting opportunity to delve into the intriguing connection between classical and quantum physics. This area of investigation, known as quantum chaos, holds immense potential for spawning groundbreaking technologies that bridge the gap between these two fundamental branches of physics. What makes it even more captivating is the … 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