Articles tagged with Quantum Mechanics
Researchers at the University of Basel have developed a smart accelerator for qubits, increasing both speed and coherence time simultaneously. By exploiting spin-orbit coupling, they created a 'plateau' effect that reduces fluctuations and allows for faster operation without sacrificing coherence.
Researchers at the University of Vermont found an exact solution to a model that behaves as a damped quantum harmonic oscillator. This discovery has significant implications for ultra-precision sensor technologies and the measurement of quantum distances.
Researchers observe 'many-body dynamical localization' where a quantum system resists thermalization despite continuous driving. The phenomenon is crucial for building better quantum devices and simulators.
Researchers at Rice University have demonstrated a strong form of quantum interference between phonons, revealing record levels of interference. The breakthrough could lead to new technologies in sensing, computing, and molecular detection.
Researchers propose a quality management system for quantum technologies to ensure security, interoperability, transparency and accountability. International standards can facilitate cooperation among countries like China, the US, and Europe, creating trust in new technologies.
Researchers at Yonsei University have successfully measured the full quantum metric tensors of Bloch electrons in solids, a breakthrough that could lead to advanced semiconductor technologies and higher transition-temperature superconductors. The study used black phosphorus as a representative material for photoemission measurements.
Scientists have achieved a high level of quantum purity in nano glass spheres, eliminating gravitational force and detecting zero-point fluctuations. This breakthrough enables the development of quantum sensors and technological applications at room temperature.
Researchers have observed quantum entanglement in heavy fermions governed by the Planckian time, a fundamental unit of time in quantum mechanics. This phenomenon opens up possibilities for harnessing it in solid-state materials to develop a new type of quantum computer.
MIT physicists performed an idealized version of the double-slit experiment, confirming light behaves as both a particle and wave. The more information obtained about light's path, the lower the visibility of the interference pattern was.
Researchers at MIT develop a new method to directly measure the strength of electron-phonon interaction in semiconductors, a crucial property for next-generation microelectronic devices and quantum computers. This approach leverages an oft-overlooked interference effect in neutron scattering to detect electron-phonon interactions.
Researchers at National Institutes for Quantum Science and Technology developed a technique to decompose polytetrafluoroethylene (PTFE) into gaseous products using electron beam irradiation. This process reduces energy required by 50% compared to traditional methods, making large-scale recycling of fluoropolymers more viable.
Scientists have developed a new method for scanning tunnelling microscopy that enables the investigation of buried interfaces and atomic-scale structures. The technique allows for high-spatial resolution analysis of both surface and subsurface layers, revealing local magnetic properties and stacking sequences.
Researchers successfully confirmed long-standing 'electron tunneling' phenomenon, revealing surprising interactions between electrons and atomic nuclei during tunneling. The study's findings have significant implications for advanced technologies like semiconductors, quantum computers, and ultrafast lasers.
Twisted trilayer graphene creates a pattern that changes the material's properties and can turn it into a superconductor. Researchers used a microscope to probe the properties of supermoiré patterns, revealing new states of matter with precisely controllable properties.
Researchers at Kyoto University have characterized quantum advantage by proving an equivalence between its existence and the security of certain cryptographic primitives. This breakthrough implies that when quantum advantage does not exist, many conventional cryptographic primitives are broken, including post-quantum ones.
Researchers at Tohoku University developed a new framework for simulating nonlinear quantum dynamics, making it easier to understand and study complex quantum systems. The method uses time-evolution data to extract nonlinear response functions without requiring explicit multipoint correlations.
A team of physicists has developed a tiny device that can detect and control antiferromagnetic resonance, enabling ultrafast and energy-efficient electronics. The breakthrough allows for a compact, electrically tunable platform to manipulate electron spins.
Researchers developed a smarter QKD system using machine learning to synchronize quantum signals, achieving reliable self-correction in unstable timing. This breakthrough enables compact and cost-effective quantum communication systems for secure key sharing over long distances.
Researchers have successfully extended the lifetime of quantum batteries by 1,000 times, outperforming previous demonstrations. The new method uses molecular triplets to store energy more efficiently, paving the way for improved designs.
Physicists from Aalto University have measured a transmon qubit coherence time of over a millisecond, surpassing previous records and enabling more complex quantum computations. This breakthrough marks a significant step towards noiseless quantum computing.
In a groundbreaking study, researchers discovered that strong magnetic fields can reverse the overall direction of angular momentum in magnetovortical matter. This finding challenges established theories and highlights the previously underestimated role of orbital motion in certain regimes.
Researchers have developed a world-first method to simulate specific types of error-corrected quantum computations, a significant leap forward in the quest for robust quantum technologies. The new algorithm tackles a long-standing challenge in quantum research and enables accurate simulation using conventional computers.
Researchers at EPFL's Bionanophotonic Systems Laboratory developed a biosensor that detects biomolecules using inelastic electron tunneling, enabling ultra-sensitive and real-time detection without bulky equipment. The sensor can detect amino acids and polymers at picogram concentrations, rivaling advanced sensors.
The latest issue of Optica Quantum features research on cryogenic photonic links for superconducting qubits, spatio-spectral quantum state estimation of photon pairs from optical fiber, and quantum optical reservoir computing powered by boson sampling. These studies demonstrate breakthroughs in measuring and optimizing quantum states, ...
A national pilot program led by UTA faculty is helping take the mystery out of quantum physics for students and educators. The program, Quantum for All, provides hands-on curriculum and classroom strategies to equip high school science teachers with the tools they need to teach quantum science.
Researchers at Rice University have conducted the first direct search for ultralight dark matter using a magnetically levitated particle. Despite high sensitivity, they did not find evidence of the anticipated signal, ruling out specific interactions between dark matter and ordinary matter.
The essay competition aims to expand on Schrödinger's fascination with the connections between quantum theory and biological processes. Entrants will explore questions such as whether life evolved the ability to make use of the counterintuitive properties of the microscopic world, and how this might relate to consciousness.
Researchers have identified a three-dimensional quantum spin liquid in cerium zirconate, exhibiting emergent photons and fractionalization. This discovery could lead to breakthroughs in superconductors and quantum computing.
Scientists developed an algorithm that can accurately simulate atomic interactions on material surfaces, reducing the need for massive computing power. This breakthrough enables the analysis of complex chemical processes in just two percent of unique configurations, paving the way for improved battery performance.
Researchers from The University of Osaka develop a method to prepare high-fidelity 'magic states' for use in quantum computers with less overhead and unprecedented accuracy. This breakthrough aims to overcome the significant obstacle of noise in quantum systems, which can ruin computer setups.
Physicists at the University of Colorado Boulder have developed a new type of atom interferometer that can measure acceleration in three dimensions. The device, which employs six lasers and artificial intelligence, has the potential to revolutionize navigation technology by providing accurate measurements in complex environments.
Scientists at UC Riverside successfully measured the electric dipole moment of aluminum monochloride, a crucial diatomic molecule. The precise measurement will aid in quantum technologies, astrophysics, and planetary science.
Researchers at TU Wien have demonstrated that special tricks can be used to increase accuracy exponentially. By using two different time scales, a clock can measure time more accurately while minimizing the impact of statistical noise.
Researchers developed a machine learning framework that can predict how materials respond to electric fields up to a million atoms, accelerating simulations beyond quantum mechanical methods. This allows for accurate, large-scale simulations of material responses to various external stimuli.
The book, co-authored by 29 contributors from over ten countries, offers an introduction to machine learning and deep neural networks for complex quantum problems. It serves as a timely guide for PhD students and researchers looking to apply modern machine learning methods to quantum physics and chemistry.
A recent study by researchers at the University of Vienna demonstrates that small-scale quantum computers can significantly boost the performance of machine learning algorithms. The experiment showed that photonic quantum processors can classify data points with fewer errors than classical algorithms.
Researchers from Oxford University and the Instituto Superior Técnico recreated the quantum vacuum effect, a state previously thought to be empty but predicted to contain virtual electron-positron pairs. The simulation reveals new insights into how intense laser beams alter the quantum vacuum, enabling future high-energy experiments.
Scientists from Harvard University and PSI have developed a method to stabilize transient quantum states in materials using tailored optical excitation. This breakthrough enables the study of emergent properties of quantum materials, paving the way for transformative technologies such as lossless electronics and high-capacity batteries.
Researchers have created a trampoline that allows phonons to swing sideways and around corners without losing much momentum. The surface contains a pattern of triangular holes, enabling the phonons to move in different directions simultaneously.
Researchers at the Niels Bohr Institute have created a novel pathway to study elusive quantum states in superconducting vortices. They designed a tiny superconducting cylinder and applied magnetic flux to mimic the essential physics, allowing them to study these states on their own terms.
Researchers have developed a new type of exotic quantum material that can maintain its quantum properties when exposed to external disturbances, paving the way for robust quantum computers. The breakthrough uses magnetism to create stability, making it an important step towards realising practical topological quantum computing.
Researchers successfully simulated fundamental interactions using Google's quantum processor, demonstrating the potential of quantum computing in particle physics and quantum materials. The study provides new insights into gauge theories and the behavior of particles, with implications for understanding space and time.
A team of physicists has developed a new quantum sensor that can detect vectorial magnetic fields with large dynamic range and multi-axis capabilities. The sensor is based on spin defects in hexagonal boron nitride, a two-dimensional material that offers new degrees of freedom compared to existing nanoscale sensors.
Researchers discovered solitonic superfluorescence in hybrid perovskites at room temperature, enabling exotic quantum states such as superconductivity and superfluidity. The study provides a blueprint for designing materials that can function at high temperatures, a crucial step forward for quantum technology development.
Researchers have demonstrated a cryogenic circuit that allows light quanta to be controlled more quickly than ever before, reducing delay by a quarter of a billionth of a second. This breakthrough could contribute to developing modern technologies in quantum information science and communication.
Researchers create new quantum biosensor using diamond nanoparticles and specially engineered shell, outperforming previous attempts. The breakthrough sheds light on a longstanding mystery in quantum materials and shows up to fourfold improvements in spin coherence.
Researchers at Caltech successfully controlled the motion of individual atoms, encoding quantum information, and demonstrated hyper-entanglement in massive particles. This experiment could lead to advancements in quantum computation and precision clocks.
The University of Texas at Arlington's ATLAS Experiment team has made significant contributions to the discovery of the Higgs boson particle. The team's work on the Large Hadron Collider at CERN led to a Noble Prize in 2013 and has earned them a $1 million Breakthrough Prize in Fundamental Physics.
Scientists have found a 2D semiconductor clay material with antiferromagnetic properties, which could be used in sustainable materials and technology. The material is cheap, easily available, and stable, making it an exciting discovery for the development of environmentally friendly quantum technologies.
A team from Tsinghua University has shattered the paradigm of traditional waveguide QED by achieving a total decay rate below γ₀ through energy quantum confinement effect. This mechanism, operating in non-Markovian regime, dynamically traps energy quanta within the waveguide, converting energy loss into temporary storage.
A team of scientists at Rice University discovered a phenomenon where tiny magnetic particles move along the edges of clusters driven by invisible 'edge currents'. This movement follows the rules of topological physics and has implications for designing responsive materials.
Researchers discover that no universal purification protocol can guarantee improvements in fidelity of entangled states across all possible quantum systems. Instead, they emphasize the need for tailored error management strategies based on specific system characteristics.
Researchers at the University of Turku developed a simple, eco-friendly approach to fabricate optical microcavities, allowing for precise study of polaritons and potential applications in ultra-efficient lasers and quantum optics. This innovation makes quantum and photonics research more accessible and energy-efficient.
Researchers at MIT have captured the first images of individual atoms freely interacting in space, visualizing never-before-seen quantum phenomena. The technique allows scientists to directly observe correlations among 'bosons' and fermions, shedding light on their behavior and interactions.
Researchers developed a thermal sensor to measure phonon vibrations at a molecular scale, finding that certain pathways cause destructive interference to reduce heat flow. This discovery could lead to the development of new materials and electronics with improved heat dissipation and efficiency.
Researchers at University of Rochester and RIT created an experimental quantum communications network to transmit information securely over long distances. The network uses single photons to enable secure communication without cloning or interception.
The 56th Annual Meeting of the American Physical Society's Division of Atomic, Molecular and Optical Physics will present new research on quantum computing, lasers, and Bose-Einstein condensates. Over 1,200 physicists from around the world will convene in Portland, Oregon, June 16-20.
Researchers at Swansea University have made a groundbreaking discovery that reduces quantum noise by creating conditions where measurement becomes impossible. This breakthrough holds potential for applications in quantum experiments and sensitive measurements.
Researchers developed quantum sensors capable of precisely detecting single particles, improving time and spatial resolution. The sensors demonstrated efficiency in detecting high-energy beams of protons, electrons, and pions.
Researchers developed an IEAC framework combining robust security with high-capacity transmission performance, achieving a record 1 Tb/s secure transmission over 1,200 km of optical fibre. The system eliminates the trade-off between security and speed by integrating encryption into the communication process.