Articles tagged with Topology
Researchers at MIT have developed a new approach to identify topological materials using machine learning and X-ray absorption spectroscopy. The method is over 90% accurate in identifying known topological materials and can predict properties of unknown compounds.
Researchers discovered a novel metallic crystal, Kagome metal, with unusual electronic behavior on its surface. The material's unique atomic structure allows for the manipulation of electrons' spin chirality, which can be controlled by applying a local voltage.
Researchers at Penn State have created a two-dimensional heterostructure by combining a topological insulator with a monolayer superconductor, demonstrating topological superconductivity and Ising-type superconductivity. The hybrid structure could pave the way for more stable quantum computers and explore Majorana fermions.
A research team from DTU has successfully designed and built a structure that concentrates light in a volume 12 times below the diffraction limit, paving the way for revolutionary new technologies. The breakthrough could lead to more sustainable chip architectures that use less energy.
Researchers from Rice University and European institutions developed a method to switch on and off topological states in a strongly correlated metal using magnetic fields. The strong electron interactions enable the material to be controlled, which could lead to new applications in sensor technology and electronics.
NIH scientists mapped the organization of human retinal cell chromatin, revealing insights into regulation of gene expression and retinal function. The study identified distinct patterns of interaction at retinal genes suggesting how chromatin's 3D organization plays a crucial role in tissue-specific gene regulation.
Researchers from Rice University and partners identified three promising candidate materials using a new framework that cross-references information in a database of known materials with theoretical calculations. The method could help explore strongly correlated topological matter, a large and largely uninvestigated landscape.
Researchers at Rice University have discovered a unique arrangement of atoms in iron-germanium crystals that leads to a collective dance of electrons. The phenomenon, known as a charge density wave, occurs when the material is cooled to a critically low temperature and exhibits standing waves of fluid electrons.
Researchers have found a way to control spin in Hafnium diselenide, a material that could lead to more efficient spintronics. This discovery provides an entirely new route towards generating spin-polarised currents from transition metal dichalcogenides.
A team at Max Born Institute develops methods to reliably create and guide magnetic skyrmions at controlled positions, enabling the study of their dynamics and potential applications in computing and data storage. By employing focused helium-ion irradiation and nanopatterned reflective masks, researchers can control the generation and ...
Researchers have uncovered new evidence of a liquid-liquid phase transition in water, where molecules form 'entangled' arrangements at low temperatures. This finding has significant implications for understanding the physics of water and could pave the way for new experiments to validate the theory.
Researchers from the University of Pennsylvania establish a relationship between topology and entanglement, tying two major principles in physics together. The connection reveals that the genus of the Fermi surface is closely related to a measure of quantum entanglement called mutual information.
Researchers at Johannes Gutenberg University Mainz are investigating the dynamics of spin structures, including the pinning effects of skyrmions on thin films. The study reveals that skyrmions get stuck in
Researchers used topological mathematics and machine learning to identify a hidden relationship between nano-scale structures and thermal conductivity in amorphous silicon. They found that the persistent homology diagram can be used as a descriptor for machine learning, achieving accurate predictions about thermal conductivities.
Researchers investigate the search for Majorana fermions in iron-based superconductors, which could enable topological quantum computing and ultra-low energy electronics. The existence of Majorana zero-energy modes in topological superconductors makes them a promising candidate material for realizing these technologies.
Researchers constructed a synthetic stub lattice in two coupled rings of different lengths, observing flat bands, band transitions and mode localization. This experimental demonstration enables dynamic control of light and may pave the way for future applications in optical communications.
A team of researchers has developed a novel photonic emulator that reveals the intricacies of light behavior in non-Hermitian optical systems. The findings suggest that the topology of energy surfaces plays a crucial role in determining light behavior, leading to novel mechanisms for light manipulation and technological advancements.
By pairing two waveguides, one with an ill-defined topology and another with a well-defined one, researchers created a topological singularity that can halt waves in their tracks. This phenomenon has potential applications in energy harvesting and enhancing nonlinear effects.
Researchers at Princeton University have discovered that electrons in a crystal exhibit linked and knotted quantum twists, raising questions about the quantum properties of electronic systems. The study brings together ideas in condensed matter physics, topology, and knot theory to create a new understanding of quantum mechanics.
A team of scientists discovered that over half of known 3D materials in nature exhibit at least one topological state, challenging the long-held idea that these materials are rare. The study also introduces a new concept called 'supertopological' and makes its data freely available to researchers.
Researchers have discovered that 90% of known crystalline structures contain at least one topological property, and more than 50% exhibit some sort of topological behavior. The newly identified materials are stored in a freely accessible database, allowing scientists to quickly search for materials with robust electronic properties.
Researchers successfully synthesized a Möbius carbon nanobelt with a twisted Möbius band topology, revealing unique properties and molecular motions. The breakthrough paves the way for developing nanocarbon materials with complex topological structures.
Researchers have created a giant magnetochiral anisotropy effect in topological insulator nanowires, allowing for highly controllable current rectification. This discovery opens the pathway for technological applications and demonstrates a significant step towards achieving topological qubits.
The study reveals the sing saw uses a surprising effect to create its distinct tone: when curved into an S-shape, energy vibrates in a confined area producing a clear, long-lasting sound. This principle can be applied to design high-quality resonators for various applications.
Scientists successfully convert diverse optical skyrmion textures without changing their spatial structure, enabling potential use as next-generation optical information carriers. The breakthrough allows for high-dimensional quantum interfaces and polarization-resolved imaging.
Researchers have created a catalogue of materials with exotic quantum properties, enabling large-scale searches for promising candidates. The team identified over 700 materials exhibiting potential flat bands, which could lead to breakthroughs in memory devices and power transport.
A collaborative study from the University of Pennsylvania demonstrates topological control capabilities in an acoustic system at technologically relevant frequencies. The researchers have successfully shown that topological phenomena occur at higher frequency ranges, enabling unique signal propagation properties.
Physicists have made a peculiar discovery in which energy moves from a colder to a hotter region, creating counterintuitive edge currents. The research, published in Physical Review Letters, shows that these currents are remarkably robust and can occur in topologically trivial systems.
Researchers have discovered that magnetic spin waves can propagate on circular paths in certain materials, enabling efficient and compact information transfer. This phenomenon, known as Landau quantization, has significant implications for the development of new electronic components.
Physicists at ETH Zurich demonstrate that vacuum fluctuations can cause a breakdown of topological protection in the integer quantum Hall effect. Exposing a quantum Hall system to strongly enhanced quantum vacuum fluctuations of a tight cavity provides a novel route to modify quantum states.
Magnetic topological materials exhibit unique properties due to interweaved magnetism and topology, enabling chiral channels of electrons and spins. The field has led to discoveries of magnetic Weyl semimetals and antiferromagnetic topological insulators.
Researchers at GIST have developed a new approach for designing fiber reinforced composites, which can simultaneously optimize the macrostructure and microscale fiber densities. This method, based on multiscale topology optimization, enables the creation of functionally graded composites with improved strength-to-weight ratios, benefit...
Researchers have created and detected dispersing excitons in a metal using angle-resolved photoemission spectroscopy, a breakthrough that could enable efficient data transmission. The discovery of mobile excitons in TaSe3 reveals their mobility and potential to revolutionize electronics.
Researchers have achieved triple-wave cloaking for both sound and light using computational inverse design method. This breakthrough expands the functionality of biphysical cloaks, enabling a wider range of materials to be used, including those beyond traditional metals.
Researchers have discovered that altering the interface between two materials in time can lead to new opportunities for wave manipulation. This breakthrough enables novel concepts and applications in photonics, including nonreciprocal gain, power steering, and optical drag.
Research team discovers compound KV3Sb5 exhibiting simultaneous quantum phenomena, including superconducting phase with broken time reversal symmetry. The findings provide experimental evidence for a new type of unconventional superconductivity in kagome metals.
University of Warwick physicists have discovered a complex electrical 'vortex' pattern in ferroelectric materials that mirrors the spin crystal phase of ferromagnets. This finding suggests that ferroelectricity and magnetism could be two sides of the same coin, with potential implications for new electronic technologies.
Researchers at PSI's Laboratory for Muon Spin Spectroscopy have discovered strong evidence of exotic charge order and orbital currents in a correlated kagome superconductor. The findings provide a new insight into unconventional superconductivity and its relationship with the quantum anomalous Hall effect.
A joint HKUST-University of Tokyo research team discovered that sodium chloride (table salt) exhibits anomalous behavior at its zero-dimensional corner, showcasing a 'higher-order' topology. This finding may inspire future designs for nanoscale conducting quantum wires and novel drug delivery methods.
Physicists have demonstrated experimentally tunable skyrmions in optical systems, offering a new mechanism for transforming between various topological textures. The results show great agreement with theoretical predictions and enable diverse applications in advanced photonics.
Harvard researchers create first topological acoustic transistor, utilizing sound waves to control flow on and off. The device demonstrates scalable and controllable 'acoustic switches' with potential applications in efficient noise reduction, ultrasound imaging, and more.
Jo Nelson, a Rice mathematician, has received the prestigious NSF CAREER Award to investigate manifold dynamics and promote diversity in academia. Her research focuses on contact and symplectic manifolds, with applications in low-energy space travel and anti-racism studies.
Researchers predict existence of split photons, a new phase of light that behaves like a coin with two distinct halves. The finding advances fundamental understanding of light and its behavior, challenging long-held beliefs.
Researchers at Tel-Aviv University have shed light on the Sigma-1 receptor's topology and function in neurodegenerative diseases. The study reveals that the receptor is retained in the endoplasmic reticulum and its amino end faces the cytoplasm, providing a crucial mechanism for therapeutic approaches to alleviate suffering from ALS.
Researchers at Harvard have successfully observed quantum spin liquids, a previously unseen state of matter that has been elusive for nearly 50 years. By manipulating ultracold atoms in a programmable quantum simulator, the team was able to create and study this exotic state, which holds promise for advancing quantum technologies.
Researchers used machine learning to identify patterns in knot theory and representation theory, suggesting new connections that mathematicians were able to prove. This collaboration demonstrates the potential of AI as a tool for guiding intuition in mathematical research.
Computer scientists and mathematicians have used artificial intelligence to help prove or suggest new mathematical theorems in complex fields. The breakthrough uses DeepMind's AI processes to explore conjectures in mathematics, leading to a completely new theorem in knot theory.
Researchers discovered a new topological magnet that can induce a billion-fold change in resistance by rotating the magnetic field angle. This phenomenon, called colossal angular magnetoresistance, enables efficient detection of electronic spin states and opens up new opportunities for spin-electronic applications.
Scientists harness higher-order protein catenation to create complexed proteins with potential as artificial antibodies. The new method enables the synthesis of protein [n]catenanes, which show improved binding affinity and prolonged serum half-life.
PKU researchers harness higher order protein catenation to create complexed topological proteins, leading to the synthesis of artificial antibodies with enhanced affinity and prolonged serum half-life. The study successfully expands toolkits for protein entangling motifs, promoting advanced protein therapeutics.
Researchers have shown a new way to probe the properties of anyons, strange quasiparticles that could be useful in future quantum computers. By measuring subtle properties of heat conductance, they can detect anyons even in non-conducting materials.
Physicists discover skyrmions can fly through electromagnetic pulses with controlled topological complexity. The supertoroidal pulse, a generalization of the 'Flying Doughnut', features fractal-like toroidal structures and multiple singularities.
Researchers have classified magnetic materials using a unified description, solving a longstanding problem. The new system provides a complete mathematical characterization of magnetic structures and has implications for quantum applications.
Researchers at EPFL have created a topological insulator that allows microwave photons to survive unprecedented levels of disorder and obstacles. This discovery holds great promise for advances in science and technology, particularly in the development of next-generation communication systems and photonic processors.
A team of scientists has investigated the impact of mechanical properties on epithelial tissues, finding that extracellular matrix stiffness dictates self-patterning and growth. The study's findings suggest a complex relationship between cell density and motility, with implications for aging and diagnostics of medical pathologies.
The game app 'Kitty Q' combines science and entertainment to introduce children and teenagers to quantum physics, with a focus on attracting girls to STEM fields. The app features over 20 puzzles based on scientific facts from quantum physics, designed to awaken curiosity and encourage trying things out.
MnBi2Te4's unique properties make it suitable for ultra-low-energy electronics and observing exotic topological phenomena. The material is metallic along its one-dimensional edges while electrically insulating in its interior.
Researchers have found exotic topological features in soft matter, a discovery that challenges our understanding of physics. The study reveals that such features are widespread and can be observed in everyday environments, including living organisms.
Researchers have discovered a room-temperature transition between 1D and 2D electrical conduction states in topological crystals of bismuth and iodine. The material's electronic behavior changes at a transition temperature around 80 degrees Fahrenheit.
Biochemical processes exhibit topological protection, ensuring robustness to changes in system shape or disorder. Edge currents emerge from futile cycles, driven by energy consumption, and are linked to out-of-equilibrium nature.