A thermal superconducting quantum interference proximity transistor
Superconductors are materials that can achieve a state known as superconductivity, in which matter has no electrical resistance and does not allow the penetration of magnetic fields. At low temperatures, these materials are known to be highly effecti.....»»
Developing doubly sustainable quantum computers
In the future, the use of quantum computers could make a significant contribution to promoting greater sustainability in global developments. This was shown in a white paper, which was recently presented at the UN Climate Change Conference in Dubai a.....»»
Widefield diamond quantum sensing with neuromorphic vision sensors
A collaborative project has made a breakthrough in enhancing the speed and resolution of widefield quantum sensing, leading to new opportunities in scientific research and practical applications......»»
Quantum dark states lead to an advantage in noise reduction
While atomic clocks are already the most precise timekeeping devices in the universe, physicists are working hard to improve their accuracy even further. One way is by leveraging spin-squeezed states in clock atoms......»»
Study finds quantum state of a rotating superfluid can discharge in three ways
According to a recent study from the University of Helsinki, published in the journal Physical Review Letters, a vortex of a superfluid that has been quantized four times has three ways of dividing, depending on the temperature......»»
Diamond quantum memory with Germanium vacancy exceeds coherence time of 20 ms
The color centers of diamond are the focus of an increasing number of research studies, due to their potential for developing quantum technologies. Some works have particularly explored the use of negatively-charged group-IV diamond defects, which ex.....»»
Cyber threats cast shadow over 2024 elections
Considering that 2024 is a historic year for elections – with an estimated half of the world’s population taking part in democratic votes – this high threat of cyber interference has significant implications for global free society, threatening.....»»
Study finds oxygen rise in the tropical upper ocean during the Paleocene-Eocene Thermal Maximum
Oxygen is fundamental to sustaining life on Earth. The ocean gets its oxygen from its uppermost layers in contact with the atmosphere. As our planet continues to warm, the ocean is gradually losing its capacity to absorb oxygen, with severe consequen.....»»
A new design for quantum computers
Creating a quantum computer powerful enough to tackle problems we cannot solve with current computers remains a big challenge for quantum physicists. A well-functioning quantum simulator—a specific type of quantum computer—could lead to new disco.....»»
New thermometry method reveals that compressing a gas may lead to cooling
An international research team from Innsbruck and Geneva has developed a new thermometry method to measure temperatures for low-dimensional quantum gases. With this method it was found that compressing a gas may lead to cooling. The results on this c.....»»
A new record for atom-based quantum computers: 1,000 atomic qubits and rising
Making quantum systems more scalable is one of the key requirements for the further development of quantum computers because the advantages they offer become increasingly evident as the systems are scaled up. Researchers at TU Darmstadt have recently.....»»
Deciphering quantum enigmas: The role of nonlocal boxes in defining the boundaries of physical feasibility
A team of scientists from the University of Ottawa is offering insights into the mysteries of quantum entanglement. Their recent study, titled "Extending the known region of nonlocal boxes that collapse communication complexity" and published in Phys.....»»
Thermally engineering templates for highly ordered self-assembled materials
Self-assembled solidifying eutectic materials directed by a template with miniature features demonstrate unique microstructures and patterns as a result of diffusion and thermal gradients caused by the template. Despite the template trying to force t.....»»
"Fortress" conservation policies threaten the food security of rural populations, says researcher
Barriers created by "fortress conservation"—as in the near-total sectioning off of land for conservation without human interference—are threatening important dietary diversity for the up to 1.5 billion people around the world who rely on wild foo.....»»
A "quantum leap" at room temperature: Ultra-low noise system achieves optical squeezing
In the realm of quantum mechanics, the ability to observe and control quantum phenomena at room temperature has long been elusive, especially on a large or "macroscopic" scale. Traditionally, such observations have been confined to environments near.....»»
Apparently, ants can eat your GPU now
Ants are eating the thermal pads in GPUs, and this is far from the first time we've heard about the problem......»»
Fundamental equation for superconducting quantum bits revised
Physicists from Forschungszentrum Jülich and the Karlsruhe Institute of Technology have uncovered that Josephson tunnel junctions—the fundamental building blocks of superconducting quantum computers—are more complex than previously thought......»»
Researchers solve a foundational problem in transmitting quantum information
Future quantum electronics will differ substantially from conventional electronics. Whereas memory in the latter is stored as binary digits, the former is stored as qubits, which can take many forms, such as entrapped electrons in nanostructures know.....»»
A multi-ensemble atomic clock enhanced using quantum computing tools
Atomic clocks are a class of clocks that leverage resonance frequencies of atoms to keep time with high precision. While these clocks have become increasingly advanced and accurate over the years, existing versions might not best utilize the resource.....»»
Flowermon: A superconducting qubit based on twisted cuprate van der Waals heterostructures
Quantum technology could outperform conventional computers on some advanced optimization and computational tasks. In recent years, physicists have been working to identify new strategies to create quantum systems and promising qubits (i.e., basic uni.....»»
How semiconductor defects could boost quantum technology
In diamonds (and other semiconducting materials), defects are a quantum sensor's best friend. That's because defects, essentially a jostled arrangement of atoms, sometimes contain electrons with an angular momentum, or spin, that can store and proces.....»»