Articles tagged with Quantum Mechanics
Researchers at TUM have developed a new method to generate single photons, increasing the photon share in emitted light from 23% to 72% using photonic crystal waveguides. This approach achieves results that were previously only attainable with complex resonator approaches, making it more suitable for quantum communication.
Physicists at the University of Basel have developed a theoretical approach to reconcile thermodynamics and quantum physics. By using a miniature heat engine in a cavity, they can absorb and emit light particles, creating a
Researchers at Rice University have successfully resolved the magnetic structure of hexagonal manganese telluride using uniaxial strain, allowing them to characterize the material's intrinsic magnetic structure. This breakthrough enables tuning of the anomalous Hall effect, a potential game-changer for spin-transport applications.
The competition brings seven teams together to pitch optics and photonics technologies with cash prizes and industry mentorship. Previous winners include Max-IR Labs, Advanced Optronics, and Coalesenz.
Scientists have demonstrated that quantum entanglement between photons can be generated directly from sunlight, opening the possibility of more energy-efficient and accessible quantum technologies. The researchers achieved an entanglement rate of about 94% similarity to a perfectly entangled state.
Researchers at NIST successfully transmitted entangled photons through a commercial fiber-optic network, a crucial step towards building quantum networks. The study demonstrates the feasibility of using existing infrastructure to connect distant users and could enable ultra-secure communications and boost quantum computing power.
Physicists have developed a method to visualize three-dimensional wavefunctions of molecules, enabling the study of molecular interactions. The technique, which uses a table-top soft-X-ray laser and powerful computer algorithms, allows for the imaging of features smaller than atomic scales.
Researchers from Kindai University and Chuo University successfully demonstrated the influence of anomalous tunneling on Bose-Einstein condensates using a cloud-based service. The findings showcase the potential of cloud services to expand theoretical physicists' research capabilities.
Researchers from the University of Waterloo developed a new quantum sensing technique using a molecule as a sensor, enabling precise imaging of single molecules. This technique has potential applications in drug discovery and structural biology.
Researchers developed an inverse-design framework to optimize magnonic crystal design, identifying unconventional lattice structures with large band gaps. The approach enables the exploration of previously unexplored material systems and device dimensions, paving the way for high-speed spin-wave computing and energy-efficient devices
Gert Aarts, a renowned physicist, has been awarded 1.58 million euros in funding from the Wübben Foundation Science to establish an Advanced Professorship at Bielefeld University. He will focus on linking theoretical physics with machine learning and expanding research on strongly interacting matter.
A Tulane University team is using AI to discover new superconductors, which could improve the nation's electrical grid, medical imaging, and quantum computing. The project combines high-fidelity calculations, physics-aware AI, and experimental measurements to accelerate discovery.
Researchers use periodic driving to transform optical lattice into accurate SYK model simulator, reproducing strong quantum chaos and information scrambling. This method opens door to studying complex quantum phenomena in strongly interacting systems.
Researchers at the University of Michigan have created a device that enables control of electron flow using laser light, potentially leading to advancements in sensing, imaging, and telecommunications. The phenomenon relies on quantum interference, allowing for directional control of electrons.
Scientists have successfully prepared and studied radium molecules precisely with lasers in tabletop experiments, marking a breakthrough in understanding the universe's matter-antimatter asymmetry. The new method can be applied to other atoms to create similarly chilled molecules.
Hydrogen displays varying behavior when in vanadium, but researchers have now discovered the role of crystal symmetry in controlling its quantum behavior. Highly symmetric structures allow hydrogen to tunnel between sites, while distorted structures suppress this effect.
Researchers unveiled a technique to build ultra-clean 2D heterostructures using muscovite crystals, eliminating microscopic residues that disrupt electronic device performance. This method enables precise stacking of atomic layers, leading to new properties and potential breakthroughs in quantum computing and nanoelectronics.
Researchers developed a prototype device that autonomously synchronizes distant qubits using a common source of correlated light particles, confirming a 20-year-old prediction. The approach requires no active control or measurement, making it fully autonomous and potentially boosting quantum technology.
Researchers at ETH Zurich have developed a new approach for quantum computing that separates computation from working memory, using mechanical vibrations to store information. This method has the potential to improve the efficiency of quantum computers and enable them to tackle complex problems more efficiently than classical computers.
Researchers used structured light from quantum optics to transform Boehm's brushes into brighter patterns, improving their detectability. This technique may help diagnose retinal diseases like macular degeneration.
Researchers develop annealable ferromagnetic icosahedral quasicrystals with unprecedented structural quality, revealing intrinsic magnetic properties and magnetic criticality. The discovery enables the first systematic investigations of quasiperiodic magnetism and magnetic criticality in QCs.
A new theoretical framework, Relativity of Spacetime Superpositions, shows that some scenarios describing quantum gravity are equivalent to classical physics with no quantum gravity signatures. The framework helps identify which experimental signatures require a quantum description of gravity.
A team at Graz University of Technology has solved the puzzle of MOF thin film structure using advanced diffraction techniques and computational modeling. They found that prototypical Cu(bdc) thin films are not porous as expected, but instead densely packed with additional hydroxide groups.
Researchers at ETH Zurich have created a technique to create precise 3D maps of electric and magnetic fields close to the surface of chips. This allows for better optimization and testing of chip materials for quantum applications.
The U-M-led QuPID project aims to design connectable quantum photonic chips for field-ready, lab-grade measurements. The team plans to miniaturize these technologies with a suite of quantum components, envisioned as 'Legos' to be combined for building different devices.
A team of scientists observed Jahn–Teller polarons in cobalt oxide crystals activated by tailored laser pulses. The study reveals the material's structural, electrical, and magnetic properties can be engineered using ultrafast laser pulses.
Researchers at Texas A&M University develop a laser technique called TRIP to directly measure quantum forces shaping proteins, enabling accurate prediction of how pharmaceutical drugs interact with them. This breakthrough could lead to the design of medicines tailored to specific diseases, revolutionizing precision medicine.
Researchers observed quantum oscillations in YbB12 using ultrasonic measurements, revealing new insight into unusual quantum behavior. The findings suggest that sound waves interact more strongly with quasiparticles in the metallic phase.
Alyssa Ney's MetaQ project aims to combine physics and philosophy to understand the quantum world, while Martin Kerschensteiner's TACO project targets new strategies for multiple sclerosis therapy using single-cell technologies. Both projects will advance our understanding of complex diseases and forge ahead into new research territories.
Researchers develop AI framework using principles of superposition and entanglement to tailor cancer treatment to patients' entire molecular background. The technique predicts health outcomes and suggests genes to target, outperforming standard biomarkers in clinical trials.
Researchers at the University of Technology Sydney have discovered a new method for controlling tiny quantum emitters in hexagonal boron nitride by twisting its layered structure. This breakthrough brings them closer to practical applications in quantum computing, secure communication and ultra-sensitive sensing.
A study by researchers at Kyushu University suggests that continuous parameters in quantum gravity may not be freely adjustable, but rather emerge from operators within the theory. The findings support Einstein's century-old claim about the fundamental laws of nature and have implications for our understanding of quantum gravity.
Researchers at TU Wien discovered high quantum entanglement in a centimeter-sized crystal of a strange metal using the quantum Fisher information. The study provides direct evidence of macroscopic quantum entanglement, potentially explaining unusual properties in high-temperature superconductors.
Researchers have developed a new theory that enables the description and simulation of non-reciprocal interactions, which are essential for studying complex systems like flocks and swarms. By introducing auxiliary degrees of freedom, physicists can now accurately model these systems using established methods.
Researchers developed a new magnetic memory material that can be rewritten using laser light, allowing for faster and more energy-efficient storage and processing of information. This breakthrough could help reduce power consumption in data centers and support future high-speed information systems.
A KAIST research team has synthesized a core raw material for fabricating asymmetric MXene, a so-called 'Janus-faced' nanomaterial with distinct functions on its two sides. This achievement establishes the foundation for implementing asymmetric MXene in various advanced technology fields.
Physicists at UCC develop new technique to measure quantum spin liquids, revealing key properties and emerging particles called 'spinons'. This breakthrough could lead to practical quantum computers by harnessing natural growth of quantum matter.
Allen Liu's dissertation resolves major questions in understanding quantum phenomena and simulating physics through learning theory perspectives. Groundbreaking algorithms prove a new physical law, with far-reaching implications still being unraveled by the quantum computing community.
Researchers observe a fully coherent quantum dance between light-induced electronic excitations and crystal lattice vibrations in perovskite nanocrystals. The interaction between excitons and phonons is found to remain well-defined at low temperatures, enabling the evolution of quantum coherence for up to 10 picoseconds.
Researchers from the University of Oxford have demonstrated a new family of quantum superpositions using highly nonclassical building blocks. The experiment used a trapped ion to create exotic motional superpositions with programmable control, revealing true quantum states.
Researchers clarify microscopic origin of charge noise in silicon spin qubits, attributing it to electronic transitions between conduction band and trap states. Higher temperatures improve gate fidelity by reducing switching rates and transition times.
Researchers discovered a more efficient method to eliminate errors in quantum computing by adapting the Schrödinger's cat scenario. They showed that stopping measurements immediately after detecting an error can increase confidence and reduce disturbance, enabling the detection of quantum information without disrupting it.
Researchers at Colorado State University have measured a hydrogen proton's radius to be 0.84 femtometers, resolving the long-standing scientific discrepancy that has puzzled scientists for years. The finding confirms the Standard Model theory and opens a door for further study, revealing subtle issues in earlier measurements.
Researchers at TUM have developed a protein-based sensor that can detect magnetic fields and be controlled by radio waves. This technology has great potential for near-term biotechnological applications, including biological quantum sensors and radio wave-controlled cell activity.
A new quantum chemistry method predicts the behavior of molecules under light with lower computational cost, enabling the study of larger systems and complex reaction pathways. This breakthrough advances the discovery of next-generation materials and deepens understanding of molecular behavior under light.
The University of Tennessee at Knoxville is launching the Knoxville Quantum Accelerator, a collaborative effort to develop and commercialize quantum technologies. The initiative will support the development of an ecosystem that advances both fundamental discovery and applications.
QuVET researchers explore how quantum wave functions move through ultra-thin materials, which could improve solar energy technologies and enable new forms of quantum control. They also manipulate quantum states in materials only a few atoms thick, opening possibilities for energy conversion and future quantum technologies.
Researchers measured hydrogen's hyperfine splitting in antihydrogen, a tiny energy difference that could reveal a hidden difference between matter and antimatter. The study confirmed the symmetry between the two, but future measurements aim to improve precision and potentially break current physics understanding.
Scientists have successfully created perfect randomness using quantum physics, a breakthrough that could revolutionize digital security. By amplifying imperfect randomness, they can generate perfectly random numbers for encryption and other applications, rendering existing systems vulnerable to attacks.
Researchers from The University of Osaka created a cobalt-based honeycomb structure that exhibits strong magnetic interactions and ferromagnetic-like behavior. This breakthrough may lead to lower-cost quantum computing materials using relatively cheap and widely available cobalt.
Scientists at OIST create well-ordered antiferromagnetic crystal with controlled chemical disorder, tracking evolution from order to disorder. They clarify the definition of spin glass, offering a new baseline for studying exotic materials.
Researchers at the Flatiron Institute and Boston University have developed a new technique using tensor networks to simulate complex quantum systems, demonstrating that classical computers can tackle previously thought-to-be-solvable-only-by-quantum-computers problems. This breakthrough opens new avenues for research on quantum dynamics.
The TransEuroOGS project establishes a network of interoperable optical ground stations across Germany, Greece, Ireland, and Luxembourg to enable quantum-secure space-to-ground communication. The project aims to address challenges in secure transnational communication using quantum key distribution.
Scientists have developed a theoretical model showing that atomic clocks can observe the quantum superposition of time. The researchers used modern techniques to detect the signature of entanglement between the clock's motion and its internal energy, improving sensitivity by 100-1000 times.
The researchers' hybrid system combines neuromorphic-inspired auto encoding and Fowler-Nordheim annealing to find the most efficient solution. This approach differs from classical computing methods and offers convergence guarantees, ensuring a solution will be found within a set timeframe.
Scientists have successfully measured incredibly small amounts of energy using a novel calorimeter technique, achieving a world-first in sensitivity. The breakthrough could pave the way for counting individual photons and detecting elusive dark-matter axions in space.
Scientists have successfully demonstrated atomic spin qubit interaction with a single-quantum sound wave, opening up new possibilities for quantum information storage and sensing applications. The experiment uses phonons to interact with atomic defects in diamond, enabling precise measurement of forces and temperatures.
Researchers develop quantum algorithms to simulate polymer degradation caused by UV radiation, using industrially relevant aircraft coatings as an example. The goal is to optimize surface coatings for various industries, improving safety and reducing costs.
Researchers at Cal Poly have discovered a way to create exotic quantum matter by controlling the timing of magnetic fields. This breakthrough could lead to more stable and error-free quantum technologies, including quantum computing and simulation.
Researchers at Oxford have demonstrated a new type of quantum interaction called quadsqueezing, a fourth-order effect that was previously unreachable. By controlling complex forms of squeezing, the team has created stronger and more accessible quantum effects for applications in simulation, sensing, and computing.