Articles tagged with Topology
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.
Researchers discovered a new topological insulator in Ba2CuSi2O6Cl2, generating attention for energy-efficient information transmission and processing. The study found non-dissipative electron flow on the surface of topological insulators.
The University of Würzburg's ToCoTronics SFB has secured additional funding to continue research on topological materials. The project aims to optimize material quality, generate new interfaces with superconductors and ferromagnets, and explore spin-orbital coupling with Coulomb interaction.
Scientists from the University of Würzburg and Harvard University successfully created quasi-particles called Majorana fermions in a two-dimensional system, paving the way for topological quantum computers. This breakthrough enables more powerful and efficient computing capabilities.
Researchers have established a conclusive link between magnetic skyrmions and the topological Hall effect, enabling the study of their properties. The discovery paves the way for innovative magnetic storage devices.
Scientists at PSI investigate a novel material exhibiting electronic properties never seen before, including Rarita-Schwinger fermions and quadruple topological Fermi arcs. The crystal is a chiral topological semimetal with exotic physical phenomena, such as phase transitions at its surface.
Researchers at Johannes Gutenberg University Mainz have successfully developed a key constituent of probabilistic computing using magnetic skyrmions. The newly created device can randomly rearrange binary sequences without losing any information, making it suitable for novel computer technology.
Researchers have developed a new device that exhibits topological superconductivity in planar structures, a key step towards scaling up quantum computing. This breakthrough combines semiconductor and superconductor materials to create a robust technology that could aid the development of fault-tolerant quantum computers.
A research group led by Professor PAN Jianwei and LU Chaoyang successfully designed the largest planar code platform at present using photons, demonstrating path-independent property in optical systems. This work provides a platform for simulating braiding operations with linear optics, enabling further exploration of anyonic statistics.
Researchers have discovered that certain classes of chiral crystals can host electrons behaving like slowed down light, with collective behavior mimicking magnetic monopoles. The team found that these crystals can exhibit unique phenomena such as large Fermi arcs and electron spins that collectively behave like magnetic monopoles.
Researchers have found that over a quarter of all materials exhibit topological properties, which could enable faster and more energy-efficient technologies. An online catalog has been created to design new topological materials using elements from the periodic table.
Researchers at UC Riverside and University of Washington have successfully imaged edge conduction in monolayer tungsten ditelluride, a 2D topological insulator. This discovery could lead to the development of more efficient electronic devices by exploiting this unique property.
Researchers from RIKEN discover that surface electromagnetic waves have a purely topological origin, similar to quantum topological states. This finding explains why these waves appear at interfaces where medium parameters change sign, providing new insights for plasmonics, metamaterials, and topological quantum systems.
The TOCHA project aims to develop novel topological photonic/phononic waveguides and heterostructures to enhance information transfer and metrology. It will advance the handling and transport of quantum information with enhanced precision demands.
Researchers from Bar-Ilan University and colleagues discovered Topological Synchronization, a new type of synchronization in chaotic systems. This phenomenon occurs when small areas of one strange attractor have the same structure as another, leading to gradual synchronization.
A team of researchers has created a metamaterial that can transport sound in unusually robust ways along its edges and localize it at its corners. This unique property may improve technologies like sonars and ultrasound devices, making them more resistant to defects.
Researchers at NIMS developed topological LC circuits with a honeycomb pattern that transport electromagnetic waves without backscattering. This discovery enables the miniaturization of high-frequency electromagnetic waveguides for various electronics devices.
Researchers at TU Wien and China's University of Science and Technology have developed a new method to identify topologically interesting quantum states in materials. By manipulating the geometry of atomic arrangements using light waves, they can reveal clear signatures indicating whether such states exist or not.
Researchers have successfully switched a material between two states of matter via application of an electric-field, paving the way for a functioning topological transistor. This breakthrough could enable ultra-low energy electronics to continue growing without being limited by available energy.
Researchers have demonstrated electronic switching in an exotic, ultrathin material at room temperature, reducing energy loss and increasing efficiency for transistors. The breakthrough uses sodium bismuthide (Na3Bi), a 'topological Dirac semimetal' that can be tuned to behave like a conventional or topological material.
A recent study reveals that Fe3Sn2 exhibits nematic electronic state and giant magnetization-driven energy shift, shedding new light on the presence of spin-orbit coupling in kagome lattices. The research also shows that the material can be manipulated to change its electron energy structure through tuning the magnetic field.
Researchers at Penn State have developed a system to manipulate electrons based on their energy and momentum, enabling controlled partitioning of electron flow. This technology could potentially be used to create 'color-coded' roads for electrons, revolutionizing the field of electronics.
Claudia Felser and Bogdan Bernevig receive the prize for their theoretical predictions and experimental realization of non-magnetic topological semi-metals. Their work has potential to give rise to useful devices with novel properties.
Researchers from Skoltech, MIPT and Samara State Technical University improved the evolutionary crystal structure prediction algorithm USPEX, generating initial structures 3 times faster, thanks to a novel random structure generator based on topological types of crystal structures.
Scientists have demonstrated a novel way to protect correlated photon states, opening a path to build robust entangled states for logic gates. This breakthrough uses silicon nanowires to create 'edge modes' that help guide and create these correlated states.
Experimental physicists at the University of Illinois have created a new disorder-induced topological state, previously predicted to occur in electronic materials. The topological Anderson insulator phase was first discovered theoretically in 2009 and its origin was further explained in subsequent works.
Heusler compounds have been found to host non-trivial topological properties, including the discovery of Weyl fermions. The study also reveals the importance of Berry curvature in determining key effects like the anomalous Hall Effect. This research has significant implications for energy conversion and quantum electronic devices.
The DFG has approved a collaborative Cluster of Excellence ct.qmat at TU Dresden and JMU Würzburg, aiming to establish a globally leading centre for quantum materials research. The cluster will focus on understanding, controlling and applying topological states of quantum matter.
TU Dresden has secured funding for three new Clusters of Excellence, including PoL: Physics of Life, ct.qmat: Complexity and Topology in Quantum Materials, and CeTI: Center for Tactile Internet. This achievement confirms the university's continuous development and commitment to cutting-edge research.
Researchers studied knotted steel chains in a viscous fluid, reproducing Kelvin's vortex atoms. The chains formed stable, toroidal structures with intertwined loops that swirled around each other.
Researchers have developed a topological photonic chip to process quantum information, demonstrating high-fidelity quantum interference and paving the way for scalable quantum computers. The breakthrough could lead to new materials, generation computers, and deeper understanding of fundamental science.
Researchers have confirmed that bismuth possesses unique topological properties, enabling it to conduct electricity without dissipation. This breakthrough establishes bismuth as a higher-order topological insulator, opening up new possibilities for high-performance electronics and quantum computing.
Researchers have discovered a quantum state of matter that can be tuned at will, opening possibilities for next-generation nanotechnologies and quantum computing. The discovery allows for the control of an exotic topological quantum magnet at the quantum level.
D-Wave Systems Inc. has successfully demonstrated a topological phase transition using its 2048-qubit annealing quantum computer, simulating a phenomenon behind the 2016 Nobel Prize. This breakthrough could lead to faster materials prototyping at lower costs.
A team of Harvard researchers has created a system to represent and classify band structures in materials, allowing for the prediction of their properties. This breakthrough can aid in designing new materials with specific electronic properties, such as topological insulators, which have potential applications in quantum computing.
Researchers found that antiskyrmions behave differently from skyrmions when electric currents are applied, creating periodic pairs and potentially providing a source of skyrmions. This phenomenon may hold clues to the imbalance between matter and antimatter in the universe.
Researchers have developed a new artificial quantum material that can control internal resistance in multilayered magnetically doped semiconductors, enabling the creation of high-efficiency computers. The material exploits the Quantum Anomalous Hall Effect, allowing for faster computation speeds and improved energy efficiency.
Researchers have discovered that nanoribbons can trap individual localized electrons, potentially enabling new quantum materials with unique electronic and magnetic properties. The discovery was made by combining theoretical predictions with experimental synthesis, using topological insulators as a starting point.
Scientists from the Max Planck Institute for Chemical Physics of Solids discovered a magnetic Weyl semimetal in Co3Sn2S2, exhibiting a giant anomalous Hall effect. The material's unique properties make it an ideal candidate for realizing the quantum anomalous Hall effect at room temperature.
Majorana fermions, which are self-antiparticles, can be detected using current noise in a topological Josephson junction. The study found that the non-equilibrium current noises exhibit peaks at specific frequencies, indicating the presence of these particles. This method provides a direct detection method for Majorana fermions.
A research team from Princeton University and the University of Pennsylvania has discovered a new, exotic form of insulating material with a metallic surface. The team used mathematical properties like symmetry to analyze existing chemical compounds and identified a novel topological insulator with a single pair of Dirac cones.
The Center for the Advancement of Topological Semimetals (CATS) will bring together researchers from top institutions to explore the potential impact of topological semimetals in mid-infrared photodetection and spintronics. The center will train young researchers to lead the discovery and development of quantum properties of matter.
Researchers are investigating topological materials for their potential to improve electronic performance and storage capacity. These materials display unusual stability even under extreme conditions.
Herbert Edelsbrunner, a renowned researcher in computational geometry and topology, has been awarded the 2018 Wittgenstein Prize. The prize will support his research, enabling him to establish Austria as a leading center for this field.