Updated: 2025-01-16 18:41:07
The chemical composition of a material alone sometimes reveals little about its properties. The decisive factor is often the arrangement of the molecules in the atomic lattice structure or on the surface of the material. Materials science utilizes this factor to create certain properties by applying individual atoms and molecules to surfaces with the aid of high-performance microscopes. Using artificial intelligence, a new research group now wants to take the construction of nanostructures to a new level.
Updated: 2025-01-14 05:50:22
Engineers have demonstrated a well-known quantum thought experiment in the real world. Their findings deliver a new and more robust way to perform quantum computations and they have important implications for error correction, one of the biggest obstacles standing between them and a working quantum computer.
Updated: 2025-01-14 01:28:32
Researchers have developed a drastically smaller and more energy efficient method of creating coveted photon pairs that influence each other from any distance. The technology could transform computing, telecommunications, and sensing.
Updated: 2025-01-09 05:59:12
Researchers have recently achieved a significant breakthrough in the development of next-generation carbon-based quantum materials, opening new horizons for advancements in quantum electronics. The innovation involves a novel type of graphene nanoribbon (GNR), named Janus GNR (JGNR). The material has a unique zigzag edge, with a special ferromagnetic edge state located on one of the edges. This unique design enables the realization of one-dimensional ferromagnetic spin chain, which could have important applications in quantum electronics and quantum computing.
Updated: 2025-01-08 19:37:20
In a study, physicists now observed a class of quantum particles called fractional excitons, which behave in unexpected ways and could significantly expand scientists' understanding of the quantum realm.
Updated: 2025-01-08 19:36:02
A research team has achieved a groundbreaking quantum simulation of the non-Hermitian skin effect in two dimensions using ultracold fermions, marking a significant advance in quantum physics research.
Updated: 2024-12-23 18:50:59
Researchers have developed nanodiamond sensors with nitrogen-vacancy (NV) centers, offering exceptional brightness and spin properties for quantum sensing and bioimaging. These nanodiamonds outperform commercial options, requiring 20 times less energy and maintaining quantum states 11 times longer. Enhanced sensitivity to magnetic fields and temperature enables precise applications, including disease detection, battery analysis, and thermal management of electronics, marking a significant advancement in nanotechnology-driven quantum sensing for biological and industrial innovations.
Updated: 2024-12-21 00:10:20
Researchers have made a meaningful advance in the simulation of molecular electron transfer -- a fundamental process underpinning countless physical, chemical and biological processes. The study details the use of a trapped-ion quantum simulator to model electron transfer dynamics with unprecedented tunability, unlocking new opportunities for scientific exploration in fields ranging from molecular electronics to photosynthesis.
Updated: 2024-12-20 18:26:55
Quantum teleportation could provide near-instant communication over long distances. But, inside Internet cables, photons needed for teleportation are lost within the millions of light particles required for classical communications. A new study quantified light scattering to find exact areas to place photons to keep them safe from other particles. The approach successfully worked in experiments carrying regular Internet traffic.
Updated: 2024-12-19 20:16:07
Scientists have successfully achieved a quantum collective behavior of macroscopic mechanical oscillators, unlocking new possibilities in quantum technology.
Updated: 2024-12-17 19:10:04
String theory remains elusive as a 'provable' phenomenon. But a team of physicists has now taken a significant step forward in validating string theory by using an innovative mathematical method that points to its 'inevitability.'
Updated: 2024-12-17 18:12:35
The quantum Hall effect, a fundamental effect in quantum mechanics, not only generates an electric but also a magnetic current. It arises from the motion of electrons on an orbit around the nuclei of atoms. These results can potentially be used to develop new types of inexpensive and energy-efficient devices.
Updated: 2024-12-13 00:02:51
For experiments that require ultra-precise measurements and control over atoms -- think two-photon atomic clocks, cold-atom interferometer sensors and quantum gates -- lasers are the technology of choice, the more spectrally pure (emitting a single color/frequency), the better. Conventional lab-scale laser technology currently achieves this ultra low-noise, stable light via bulky, costly tabletop systems designed to generate, harness and emit photons within a narrow spectral range.
Updated: 2024-12-12 21:32:02
An international research team has controlled hybrid electron-photon quantum states in helium atoms. Control of these special quantum states was enabled by the pulse formation of very intense, extreme ultraviolet radiation. This method introduces the possibility not only of studying quantum mechanical effects in atoms and molecules, but also of controlling chemical reactions.
Updated: 2024-12-12 16:56:20
Theoretical physicists along with an experimental team have found evidence of a quantum spin liquid in a material known as pyrochlore cerium stannate. They achieved this by combining state-of-the-art experimental techniques, including neutron scattering at extremely low temperatures, with theoretical analysis. By measuring the way in which neutrons interact magnetically with the electron spin in pyrochlore, the researchers observed the collective excitations of spins interacting strongly with light-like waves.
Updated: 2024-12-10 21:35:15
Researchers discovered that three-layer graphene can naturally self-organize into specific stacking patterns (ABA/ABC domains) during growth on silicon carbide, eliminating the need for manual manipulation. This breakthrough could enable scalable production of quantum devices.
Updated: 2024-12-10 19:20:29
Researchers have realized a new design for a superconducting quantum processor, aiming at a potential architecture for the large-scale, durable devices the quantum revolution demands. Unlike the typical quantum chip design that lays the information-processing qubits onto a 2-D grid, the team has designed a modular quantum processor comprising a reconfigurable router as a central hub. This enables any two qubits to connect and entangle, where in the older system, qubits can only talk to the qubits physically nearest to them.
Updated: 2024-12-10 16:54:14
A ground-breaking study showcases a significant advancement in laser technology, promising more affordable and scalable solutions for applications ranging from environmental monitoring to biomedical imaging. Researchers have developed the first colloidal quantum dot (CQD)-based laser capable of operating across the entire extended short-wave infrared (SWIR) spectrum.
Updated: 2024-12-06 21:19:13
With the help of a new experiment, researchers have succeeded in confirming a ten-year-old theoretical study, which connects one of the most fundamental aspects of quantum mechanics -- the complementarity principle -- with information theory. Their study provides a piece of the puzzle for understanding future quantum communication, metrology, and cryptography.
Updated: 2024-12-04 16:43:14
Scientists carried out an experiment that realizes a new kind of quantum standard of resistance. It's based on the Quantum Anomalous Hall Effect.
Updated: 2024-12-02 05:45:09
Research is paving the way for advanced diamond-based technologies in electronics and quantum computing.
Updated: 2024-12-02 05:33:26
Where do you see patterns in chaos? It has now been demonstrated in the incredibly tiny quantum realm. Researchers detail an experiment that confirms a theory first put forth 40 years ago stating that electrons confined in quantum space would move along common paths rather than producing a chaotic jumble of trajectories.
Updated: 2024-11-26 18:57:38
Creating and controlling quantum dots via electrical methods, is likely to lead to new frontiers in the quest to develop stable and efficient qubits. Exploring how zinc oxide can be used in electrically defined quantum dots, researchers have unearthed some surprising phenomenon.
Updated: 2024-11-19 18:34:57
A new theory, that explains how light and matter interact at the quantum level has enabled researchers to define for the first time the precise shape of a single photon.
Updated: 2024-11-17 00:56:51
Quantum-science advances using AI can measure very small surfaces and distances -- opening a world of medical, manufacturing and other applications.
Updated: 2024-11-15 05:48:36
Scientists have produced a new route to materials with complex 'disordered' magnetic properties at the quantum level. The material, based on a framework of ruthenium, fulfils the requirements of the 'Kitaev quantum spin liquid state' -- an elusive phenomenon that scientists have been trying to understand for decades.
Updated: 2024-11-14 05:57:35
For a wide variety of emerging quantum technologies, such as secure quantum communications and quantum computing, quantum entanglement is a prerequisite. Scientists have now demonstrated a particularly efficient way in which photons can be entangled with acoustic phonons. The researchers were able to demonstrate that this entanglement is resilient to external noise, the usual pitfall of any quantum technology to date.
Updated: 2024-11-13 05:34:08
How to keep stray radiation from 'shorting' superconducting qubits; a pair of studies shows where ionizing radiation is lurking and how to banish it.
Updated: 2024-11-13 00:10:49
A new study has uncovered important behavior in the flow of electric current through quantum superconductors, potentially advancing the development of future technologies like quantum computing.
Updated: 2024-11-11 05:34:05
Two quantum information theorists have solved a decades-old problem that will free up quantum computing power.
Updated: 2024-11-06 18:22:29
Supersolids are a new form of quantum matter that has only recently been demonstrated. The state of matter can be produced artificially in ultracold, dipolar quantum gases. A team has now demonstrated a missing hallmark of superfluidity, namely the existence of quantized vortices as system's response to rotation. They have observed tiny quantum vortices in the supersolid, which also behave differently than previously assumed.
Updated: 2024-11-05 16:41:52
Researchers have developed a novel type of nanomechanical resonator that combines two important features: high mechanical quality and piezoelectricity. This development could open doors to new possibilities in quantum sensing technologies.
Updated: 2024-11-04 16:23:21
Nanoscale 3D transistors made from ultrathin semiconductor materials can operate more efficiently than silicon-based devices, leveraging quantum mechanical properties to potentially enable ultra-low-power AI applications.
Updated: 2024-10-31 04:42:28
A research team developed a new paradigm for the control of quantum emitters, providing a new method for modulating and encoding quantum photonic information on a single photon light stream.
Updated: 2024-10-30 18:58:09
A discovery by physicists is unlocking a new understanding of magnetism and electronic interactions in cutting-edge materials, potentially revolutionizing technology fields such as quantum computing and high-temperature superconductors.
Updated: 2024-10-30 18:57:39
Researchers created a synthetic magnetic field using a superconducting quantum processor, which could enable them to precisely study complex phenomena in materials, like phase changes. This could shed light on properties of unique materials that may be used to create faster or more powerful electronics.
Updated: 2024-10-30 18:56:38
Researchers have demonstrated a network connection between quantum processors over metropolitan distances. Their result marks a key advance from early research networks in the lab towards a future quantum internet. The team developed fully independently operating nodes and integrated these with deployed optical internet fiber, enabling a 25-km quantum link.
Updated: 2024-10-25 23:45:17
A new technique for growing quantum dots has not only found a new, more efficient way to build a useful type of quantum dot, but also opened up a whole group of novel chemical materials for future researchers' exploration. Replacing organic solvents with molten salt lets researchers grow 'previously unimaginable nanocrystals.'
Updated: 2024-10-24 17:19:11
Scientists have used high-performance computing at large scales to analyze a quantum photonics experiment. In specific terms, this involved the tomographic reconstruction of experimental data from a quantum detector.
Updated: 2024-10-22 19:38:38
The emergence of quantum entanglement is one of the fastest processes in nature. Scientists show that using special tricks, this can be investigated on an attosecond scale. Scientists have managed to analyze ulrafast processes which up until now were considered to be 'instantaneous': When a laser pulse hits an atom with two electrons, one electron may be ripped out of the atom, while the other electron stays close to the nucleus. These two electrons can become entangled in such a way that the point in time, at which the electron was ejected from the atom, becomes uncertain and depends on the state of the other electron.
Updated: 2024-10-21 04:30:21
The speed and agility of cloud computing opens doors to completing advanced computational chemistry workflows in days instead of months.
Updated: 2024-10-17 21:32:09
Predicting the behavior of many interacting quantum particles is a complicated process but is key to harness quantum computing for real-world applications. Researchers have developed a method for comparing quantum algorithms and identifying which quantum problems are the hardest to solve.
Updated: 2024-10-17 15:23:55
A new study opens the door to cutting-edge solutions that could contribute to the realization of a system capable of processing quantum information in a simple yet powerful way. The work presents a method for manipulating the photonic states of light in a never-before-seen way, offering greater control over the evolution of photon propagation. This control makes it possible to improve the detection and number of photon coincidences, as well as the efficiency of the system.
Updated: 2024-10-16 15:56:09
A paper has solved a major hurdle facing researchers working with diamond by creating a novel way of bonding diamonds directly to materials that integrate easily with either quantum or conventional electronics. With this technique, the team directly bonded diamond with materials including silicon, fused silica, sapphire, thermal oxide, and lithium niobate without an intermediary substance to act as 'glue.' Instead of the several-hundred microns thick bulk diamonds typically used to study quantum qubits, the team bonded crystalline membranes as thin as 100 nanometers while still maintaining a spin coherence suitable for advanced quantum applications.
Updated: 2024-10-11 18:15:48
Scientists have used light to visualize magnetic domains, and manipulated these regions using an electric field, in a quantum antiferromagnet. This method allows real-time observation of magnetic behaviors, paving the way for advancements in next-generation electronics and memory devices, as well as a deeper understanding of quantum materials.
Updated: 2024-10-09 18:47:50
A research team has devised a unique method to observe changes in materials at the atomic level. The technique opens new avenues for understanding and developing advanced materials for quantum computing and electronics.
Updated: 2024-10-09 04:13:04
Quantum physicists have tapped into a kind of ghostly interaction, known as entanglement, to improve the precision of optical atomic clocks, which measure time through the natural 'ticking' of atoms.
