Articles tagged with Topology
Comprehensive exploration of living organisms, biological systems, and life processes across all scales from molecules to ecosystems. Encompasses cutting-edge research in biology, genetics, molecular biology, ecology, biochemistry, microbiology, botany, zoology, evolutionary biology, genomics, and biotechnology. Investigates cellular mechanisms, organism development, genetic inheritance, biodiversity conservation, metabolic processes, protein synthesis, DNA sequencing, CRISPR gene editing, stem cell research, and the fundamental principles governing all forms of life on Earth.
Comprehensive medical research, clinical studies, and healthcare sciences focused on disease prevention, diagnosis, and treatment. Encompasses clinical medicine, public health, pharmacology, epidemiology, medical specialties, disease mechanisms, therapeutic interventions, healthcare innovation, precision medicine, telemedicine, medical devices, drug development, clinical trials, patient care, mental health, nutrition science, health policy, and the application of medical science to improve human health, wellbeing, and quality of life across diverse populations.
Comprehensive investigation of human society, behavior, relationships, and social structures through systematic research and analysis. Encompasses psychology, sociology, anthropology, economics, political science, linguistics, education, demography, communications, and social research methodologies. Examines human cognition, social interactions, cultural phenomena, economic systems, political institutions, language and communication, educational processes, population dynamics, and the complex social, cultural, economic, and political forces shaping human societies, communities, and civilizations throughout history and across the contemporary world.
Fundamental study of the non-living natural world, matter, energy, and physical phenomena governing the universe. Encompasses physics, chemistry, earth sciences, atmospheric sciences, oceanography, materials science, and the investigation of physical laws, chemical reactions, geological processes, climate systems, and planetary dynamics. Explores everything from subatomic particles and quantum mechanics to planetary systems and cosmic phenomena, including energy transformations, molecular interactions, elemental properties, weather patterns, tectonic activity, and the fundamental forces and principles underlying the physical nature of reality.
Practical application of scientific knowledge and engineering principles to solve real-world problems and develop innovative technologies. Encompasses all engineering disciplines, technology development, computer science, artificial intelligence, environmental sciences, agriculture, materials applications, energy systems, and industrial innovation. Bridges theoretical research with tangible solutions for infrastructure, manufacturing, computing, communications, transportation, construction, sustainable development, and emerging technologies that advance human capabilities, improve quality of life, and address societal challenges through scientific innovation and technological progress.
Study of the practice, culture, infrastructure, and social dimensions of science itself. Addresses how science is conducted, organized, communicated, and integrated into society. Encompasses research funding mechanisms, scientific publishing systems, peer review processes, academic ethics, science policy, research institutions, scientific collaboration networks, science education, career development, research programs, scientific methods, science communication, and the sociology of scientific discovery. Examines the human, institutional, and cultural aspects of scientific enterprise, knowledge production, and the translation of research into societal benefit.
Comprehensive study of the universe beyond Earth, encompassing celestial objects, cosmic phenomena, and space exploration. Includes astronomy, astrophysics, planetary science, cosmology, space physics, astrobiology, and space technology. Investigates stars, galaxies, planets, moons, asteroids, comets, black holes, nebulae, exoplanets, dark matter, dark energy, cosmic microwave background, stellar evolution, planetary formation, space weather, solar system dynamics, the search for extraterrestrial life, and humanity's efforts to explore, understand, and unlock the mysteries of the cosmos through observation, theory, and space missions.
Comprehensive examination of tools, techniques, methodologies, and approaches used across scientific disciplines to conduct research, collect data, and analyze results. Encompasses experimental procedures, analytical methods, measurement techniques, instrumentation, imaging technologies, spectroscopic methods, laboratory protocols, observational studies, statistical analysis, computational methods, data visualization, quality control, and methodological innovations. Addresses the practical techniques and theoretical frameworks enabling scientists to investigate phenomena, test hypotheses, gather evidence, ensure reproducibility, and generate reliable knowledge through systematic, rigorous investigation across all areas of scientific inquiry.
Study of abstract structures, patterns, quantities, relationships, and logical reasoning through pure and applied mathematical disciplines. Encompasses algebra, calculus, geometry, topology, number theory, analysis, discrete mathematics, mathematical logic, set theory, probability, statistics, and computational mathematics. Investigates mathematical structures, theorems, proofs, algorithms, functions, equations, and the rigorous logical frameworks underlying quantitative reasoning. Provides the foundational language and tools for all scientific fields, enabling precise description of natural phenomena, modeling of complex systems, and the development of technologies across physics, engineering, computer science, economics, and all quantitative sciences.
Researchers studied patterns in phylogenetic trees to understand how evolution and ecology interact. They found that ecological processes create a fractal structure in tree topology, leading to unbalanced branching.
Researchers at Max Planck Institute for Chemical Physics of Solids successfully realized chiral topological compound PtGa, exhibiting a high topological charge of 4. This property enables the generation of a large quantized photogalvanic current that can be manipulated by incident light polarization.
A joint research team from Hong Kong, Beijing, and Shanghai discovered a rare-earth magnet TmMgGaO4 (TMGO) that realizes the long-sought-after two-dimensional topological Kosterlitz-Thouless (KT) phase. The breakthrough provides the missing piece of KT phenomena in bulk magnetic materials.
Scientists from three research groups collaborate to study a unique compound that conducts electrons in different ways on its surfaces and doesn't conduct at all in its middle. They find evidence of strong and weak topological insulation properties, challenging current understanding of the material's behavior.
Physicists at the University of Würzburg have experimentally confirmed a new theory on topological metamaterials, which exhibit extraordinary properties. The study shows that all states localize at the edge of the material, a phenomenon known as the non-Hermitian skin effect.
Scientists used complex network theory to analyze nuclear reaction networks, identifying stable nuclides and patterns in thermonuclear reactions. The study revealed that certain reaction patterns fade away or change shape as the number of protons reaches a certain threshold.
A research team from Singapore University of Technology and Design has discovered a new strategy to resolve contact resistance in 2D semiconductor devices. They found that an ultrathin film of Na3Bi can be used as a metal contact with low contact resistance, retaining the intrinsic electronic properties of 2D semiconductors.
Researchers have discovered high-Chern-number and high-temperature Chern insulator states in MnBi2Te4 devices, exhibiting multiple dissipationless edge states above liquid helium temperature. Theoretical calculations reveal the origin of these states as a magnetic Weyl semimetal with layer-dependent Chern number.
Researchers propose a novel 'higher-order' Kuramoto model combining topology with dynamical systems to characterize synchronization in higher-order networks. The study found that higher-order synchronization occurs explosively, revealing how topology induces dramatic changes in dynamics at the onset of synchronization transition.
Dr Martin Kerin, an Irish mathematician from NUI Galway, has published a research article in the Annals of Mathematics, resolving a question on the geometry of seven-dimensional exotic spheres. The discovery confirms that all these spaces admit non-negative curvature.
Researchers found a Hopfion structure, a repeating pattern present throughout nature, in ferroelectric nanoparticles. This discovery highlights the interconnectedness of scientific fields and could lead to breakthroughs in energy storage devices and information systems.
Scientists analyzed tiny tungsten ditelluride crystals and detected characteristic oscillations indicating current flows along narrow edges, supporting theoretical predictions of higher-order topological material properties.
Researchers have successfully synthesized a 2D honeycomb kagome polymer, revealing predicted topological properties and opening up new possibilities for electronic devices. The material's unique structure combines the properties of graphene and superconductors.
Scientists have developed a 4D electric circuit network that simulates a topological insulator, exhibiting unusual properties such as quantized Hall currents and surface excitations. The work paves the way for studying topological phase transitions, non-linear effects, and quantum open systems.
Researchers have found a link between 2D and 3D phases of topological matter, reviving the quantum Hall effect in 3D superconductors. This connection could enable fault-tolerant quantum computing using entangled states protected by long-range quantum entanglement.
Researchers detect a superconducting current along the exterior edge of a topological semi-metal, suggesting ways to unlock 'topological superconductivity' for quantum computing. The discovery uses a crystalline material called molybdenum ditelluride and measures the critical current as it varies with magnetic field.
Scientists at University of Copenhagen have discovered a new way to create topological superconductivity and Majorana zero modes using a cylindrical superconductor surrounding a semiconductor, potentially offering an alternative route for qubits. This breakthrough unifies two existing ideas in quantum mechanics.
Researchers have made a breakthrough discovery that could help establish optically controlled quantum computation by using light to steer quantum states in a Dirac semimetal. This new mechanism enables the creation of topological transistors and quantum computing devices with high speed and low energy consumption.
Researchers Rebekka Koch and Jan Carl Budich study non-Hermitian Hamiltonians in classical and quantum systems, revealing their impact on dissipative topological models. They found stable spectral instabilities under physically motivated perturbations.
William Beksi, a UTA computer scientist, is developing topological methods to process large-scale 3D point cloud data, aiming to overcome limitations in robotic perception applications. This new approach uses persistent homology to extract unique insights into the structure of point cloud data.
Recent discoveries by ASU professors Xiaojun Tian and Xiao Wang explore the impact of memory circuit topologies on host cell behavior, revealing a first in the field of synthetic biology. The research expands scientific understanding of complex interactions between engineered gene circuits and biological host cells.
A comprehensive study reveals that spin canting, a slight nudge on magnetic moments, provokes substantial changes in the electronic band structure of CaMnBi2. The research establishes a direct link between magnetism and electronic-band topology, opening doors to exploring new properties and possibilities.
Researchers at the University of Würzburg have discovered a new quantum state of matter that enables light to be accumulated at a specific point in an optical fiber. This effect, known as a 'light funnel', has the potential to improve the sensitivity of optical detectors and unlock new technological applications.
Researchers have created a 3D phononic crystal that hosts symmetry-enforced Dirac points at the Brillouin zone corners. These points exhibit conical dispersion and vanishing density of states around them, making the material an ideal platform for simulating relativistic Dirac physics.
Researchers have identified jacutingaite as a dual-topological insulator, exhibiting both weak and topological crystalline insulator properties. The material's dual nature is attributed to strong interlayer hybridization leading to a novel hopping term, resulting in protected surface states.
The study describes experiments using a three-dimensional active nematic, revealing dominant loop structures that emerge spontaneously and expand before self-annihilating. These loops differ from defects in two-dimensional systems, having no charge but still related to them.
Researchers have successfully observed topologically protected light waves propagating along a special boundary in a photonic crystal, unaffected by sharp corners or imperfections. This breakthrough enables the development of optical chips with enhanced reliability and potential for quantum information transfer.
Valerii Vinokur, a senior scientist at Argonne National Laboratory, has made significant contributions to understanding topological properties of matter and their related phase transitions. His research has enabled the discovery of novel superinsulating states of matter in disordered superconducting films.
Researchers have discovered quasi-1D surface superconductivity in TaIrTe4, a type II Weyl semimetal. This finding offers a novel platform for exploring topological superconductors and may contribute to the development of topological quantum computation.
A new intercalation strategy boosts superconductivity in layered materials, enabling tailored topological properties. The method, developed by Tsinghua University researchers, shows enhanced superconductivities and good sample stabilities in intercalated MoTe2 and WTe2.
Two new studies from Princeton researchers and their collaborators chart a course for restoring conductivity in fragile topology materials. The studies provide a theoretical explanation for the phenomenon, revealing that conducting surface states can reappear under specific conditions.
Researchers at ETH Zurich present theoretical and experimental work that provides a higher-level understanding of 'fragile topology' in topological insulators. The discovery could lead to new applications in acoustics, photonics, and beyond.
Scientists have discovered a new method to realize non-Abelian braiding in a non-Majorana system by constructing Jackiw-Rebbi zero-modes in a quantum spin Hall insulator. This breakthrough has the potential to enable topological quantum computation without superconductivity, offering advantages over Majorana-based systems.
Researchers found that Dirac semimetals exhibit robust, conducting electronic states in 1D, challenging previous conclusions about the nature of these materials. The discovery settles the decades-old problem of whether condensed matter Dirac fermions have topologically protected surface states.
Researchers from Chinese Academy of Sciences have successfully demonstrated diabolical points (DPs) in two strongly coupled microdisks with embedded quantum dots. The system enables a controllable phase shift between the microdisks, indicating potential applications in directional laser and quantum phase control.
A team of physicists at Penn State and Germany's University of Wurzburg studied over three dozen devices similar to the one used to produce the angel particle. They found that the feature claimed to be the manifestation of the angel particle was unlikely to be induced by its existence.
Researchers developed an experimental and theoretical analysis to understand how knots work, revealing key topological factors that determine stability. The framework could be used to design new classes of knots with specific behaviors.
Researchers have discovered a much larger transverse figure of merit in topological semimetals compared to their longitudinal counterparts. This is attributed to the coexistence of electrons and holes contributing additively and high charge mobility without lattice imperfections.
Researchers have successfully developed the first crystal-growing technique for manganese-bismuth telluride (MnBi2Te4), a new antiferromagnetic topological insulator. The discovery has significant implications for technological advances in information processing, sensors, and computing.
Chen WeiQiu's team discovers a way to tailor topological states in acoustic materials by selecting specific boundaries, enabling dual-channel propagation and one-way propagation of sound waves. This breakthrough leads to the design of tunable acoustic devices with new possibilities.
Researchers discover samarium hexaboride, a material with strongly interacting electrons, which can also exhibit topological insulating properties. This breakthrough paves the way for more stable quantum computing and opens up new possibilities for exotic physics research.
Researchers have found a new method to identify and manipulate magnetic Weyl semimetals, which could lead to the development of spintronic devices. The new approach uses the relationship between electronic spin and charge to reveal the topological characteristics of these materials.
Researchers have discovered unconventional energy- and direction-dependent spin textures on the surface of pyrite-type crystals, enabling both in-plane and out-of-plane spin components. This finding opens new possibilities for topological spintronics devices and unlocks the potential of pyrite in future spintronics applications.
Researchers at UC3M have developed a new type of acoustic insulation that can focus sound energy in corners, potentially leading to breakthroughs in filtering and conducting applications. The innovation uses topological materials to concentrate sound waves, enabling efficient energy harvesting and conversion.
Physicists at JMU have successfully constructed a Quantum Point Contact (QPC) in topological HgTe quantum wells, allowing them to investigate potential interactions between the edge states. This breakthrough could lead to fundamental discoveries in topological nanostructures and innovative applications for information technology.
A new research center will focus on solving fundamental scientific problems in geometry and topology, with potential applications in fields like forest fires and airbags. The Copenhagen Center for Geometry and Topology aims to answer questions about shortest paths, moduli, geodesics, and singularities.
Researchers develop new synthesis method to create molecules with partial structures of fullerenes, graphene, and carbon nanotubes. They successfully synthesize catenanes and knots, which are expected to be used in molecular machines and have specific properties derived from the topology.
Scientists have developed a new way to extract topological information from quantum materials using ultra-fast laser light, which can distinguish between trivial and topological insulators in a millionth of a billionth of a second. This method could lead to the development of optically-controlled electronics that process information te...
Scientists at the University of Hong Kong and Hunan Normal University have realized a giant magnetic field through moiré pattern engineering. The magnetic flux per supercell is quantized, and the field magnitude scales inversely with the square of the moiré period.
Scientists have discovered magnetic Weyl semimetals, which exhibit both topological and magnetic properties. These materials have the potential to enable dissipationless transport and revolutionize data storage and energy conversion.
Researchers found a magnetic material at room temperature enabling collective electron behavior mimicking massless particles and anti-particles. This phenomenon is attributed to topology, a branch of mathematics governing electron behavior in crystals.
Researchers have directly observed the non-Abelian Aharonov-Bohm Effect, a predicted exotic phenomenon involving optical waves and synthetic magnetic fields. The finding may offer a step toward fault-tolerant quantum computers.
Researchers use TDA to inject knowledge of real world into neural networks, reducing training time and increasing intelligibility. This approach enables machines to focus on meaningful features and improve performance in tasks like face recognition.
Scientists have discovered a new catalyst material that speeds up hydrogen production using topological surface states. The material, Co3Sn2S2, has been shown to outperform conventional nano-structured catalysts despite having much lower platinum content.
Physicists from HKUST and PKU successfully simulated 3D topological matter using ultracold atoms, enabling investigation of nontrivial phases in all physical dimensions. The breakthrough opens possibilities for developing new topological materials that don't occur naturally.
Researchers have discovered a crossover in PtTe2 films from a 2D metal to a 3D Dirac semimetal with spin texture induced by local Rashba effect. The work reveals a metallic band dispersion of PtTe2 thin films even down to 2 ML, showing a strong thickness-dependent evolution.
Scientists have discovered a superconductor that can resist quantum decoherence, allowing for longer qubit lifetimes and more efficient quantum logic circuits. The material, uranium ditelluride (UTe2), has unique properties that make it attractive for building quantum computers.
Researchers have developed a way to create stable laser solitons without external radiation, with potential applications in storing digital information. These solitons have complex internal structures and topologies, such as the 'apple' and 'trefoil' shapes, which can merge and potentially be used in digital storage systems.
Scientists have successfully imaged an exotic quantum particle called a Majorana fermion, which can be used as a building block for future qubits and the realization of quantum computers. This achievement brings researchers closer to developing robust qubits and ultimately building quantum computers.
Research reveals that chromatin domains are not the sole determinant of gene expression, with many genes resistant to rearrangements. The study challenges a current dogma in the field and raises questions about other mechanisms controlling enhancer-target interactions.