Articles tagged with Topology
Researchers from the University of Central Florida and Technion-Israel have developed a nonmagnetic topological insulator laser, improving efficiency, beam quality, and resilience. This breakthrough technology has potential applications in various fields, including science and technology.
Researchers at the University of Chicago discovered a topological wave in a randomly arranged material, defying traditional expectations. The finding offers new insights into collective motion and could have implications for electronics and optics.
The Mathematical Association of America (MAA) has awarded the Euler Book Prize to Matt Parker for his book 'Things to Make and Do in the Fourth Dimension' and the Beckenbach Book Prize to Roland van der Veen and Jan van de Craats for their book 'The Riemann Hypothesis: A Million Dollar Problem',
Researchers from ETH Zurich, USA, Germany, Italy, and Israel create a four-dimensional physical phenomenon in two dimensions using the quantum Hall effect. The team, led by Oded Zilberberg, demonstrates a virtual fourth dimension through topological pumping, enabling the observation of four-dimensional quantum Hall effect characteristics.
Researchers have developed a simple and efficient criterion to identify potential topological insulators, leveraging atomic number and Pauling electronegativity. This approach enables ready screening of candidate materials, reducing the need for detailed electronic structure calculations.
Trisodium bismuthide (Na3Bi) has been found to have an electronically smooth nature similar to graphene, allowing it to maintain high electron mobility. This discovery opens up possibilities for the advancement of topological materials and their applications in electronics.
Japanese researchers developed a novel phase-field model to study phase separation in binary mixtures within porous materials. The model revealed a clear relationship between demixing and wetness, influenced by the topology of the pore structure.
Researchers predict creation of 'Weyl-Kondo semimetal,' a quantum material with unique properties, and demonstrate its existence through modeling. The discovery has significant implications for understanding high-temperature superconductivity and strongly correlated materials.
Rice University physicists have successfully created a previously unseen state of matter, the excitonic insulator, which could be used to form component of topological quantum computer. The device uses braided qubits and has inherent topological signatures that could enable fault-tolerant qubits.
Researchers developed an automatized strategy to separate circular molecules from their linear counterparts using microfluidic channels decorated with attractive spots. This separation technology is crucial for analyzing topology in biological systems and developing new materials.
Researchers at UCSB have made a breakthrough in generating Majorana quasiparticles, which are essential for topological quantum computing. By using 'hashtag'-shaped nanowires, the team has successfully coaxed these exotic states into existence, paving the way for braiding and potentially revolutionizing quantum information processing.
The researchers have demonstrated the first laser cavity that can confine and propagate light in any shape imaginable, even pathways with sharp bends and angles. This new design could enable higher speed optical communication technologies.
Researchers found that the same mathematical principles governing topological insulators also drive equatorial waves in the ocean, explaining their persistence despite weather disturbances. This discovery could lead to new ways of identifying climate dynamics and deepening scientists' understanding of the Earth's climate system.
Junzhou Huang will explore combining topology and machine learning to analyze brain image data, which is complex, multiscale, and heterogeneous. The goal is to predict the outcome of future data more accurately.
Researchers demonstrate a universal probe for exotic states of matter by heating up quantum systems. This phenomenon is linked to the topological nature of the system and can be quantized in terms of a unique physical observable: the heating rate.
Researchers at MIT developed a new design system that catalogs physical properties of tiny cube clusters, enabling computationally efficient evaluation of macroscopic designs. The system explores the entire space of properties to determine printable clusters, which can be used to optimize object materials and properties.
Researchers at Louisiana State University and Tulane University have observed topological behavior in a magnet, Sr1-yMn1-zSb2, which displays nearly massless electronic charge carriers. This discovery holds promise for novel device concepts with reduced power consumption and heat production.
Scientists use electron pulses to create and manipulate nanoscale magnetic excitations that can store data, confirming dynamic understandings provided by theory. Tailored electron pulses can swiftly write, erase or switch topologically protected magnetic textures such as skyrmions.
A team of Würzburg physicists has developed a new concept for topological insulators that can process data at room temperature, eliminating the need for extreme cooling. This breakthrough could lead to efficient information technology and advances in spintronics.
Researchers have theoretically predicted a new class of insulating phases, pinpointing potential locations in nature. These insulators generate quantized electric quadrupole or octupole moments, offering a significant theoretical breakthrough in condensed matter research.
Physicists have successfully demonstrated topological superconductivity in β-Bi2Pd films, a crucial step towards fault-tolerant quantum computing. The researchers found that tuning the chemical potential can isolate topological surface states, revealing a promising candidate for topological superconductor.
Researchers have discovered a new topological material that could overcome difficulties in creating fault-tolerant quantum computers. By patterning the superconductor directly into the crystal, they can eliminate electrical contact problems and pattern devices for quantum computing in one single crystal.
Researchers developed a novel approach to synthesizing Janus particles with controllable topological and chemical anisotropy using emulsion interfacial polymerization. The method produced uniform Janus particles with amphiphilicity, expanding their utility in applications such as oil-water separation and biological detection.
Researchers created a new tool that analyzes RNA sequencing data using topology, providing insights into cellular differentiation and development. The approach identifies connections between cellular states and genes active during development, offering potential discoveries in understanding cell identity and guiding cellular development.
Researchers directly observed chiral currents in a 2-D integer quantum Hall system using an atomic quantum simulator. The team created a synthetic magnetic field and manipulated it to observe emergent behavior, showcasing the potential of this technique.
A Cornell research group led by Eun-Ah Kim proposes a strategy to create a topological superconductor using transition metal dichalcogenides (TMDs). If successful, this could pave the way for building a powerful quantum computer with approximately six times more qubits than current models.
Researchers have created a structure that allows tuning of topological properties, enabling the control of current flow and opening up possibilities for circuits based on topological behaviors. The discovery presents a new artificial crystal lattice structure for studying quantum behaviors.
Alpha-tin, commonly called gray tin, shows a novel electronic phase under strain, exhibiting massless Dirac fermions in three dimensions. This discovery holds promise for novel physics and potential applications in technology, including ultrafast electronic devices and spintronic devices.
JAX Professor Yijun Ruan has received a $1.05 million grant from the Human Frontier Science Program to explore the fundamental mechanics of memory and learning, as well as epilepsy. The research team will investigate how genome topology contributes to changes in gene expression that underlie these conditions.
Weyl semimetal TaAs crystals exhibit zero bias conductance peak and double conductance peaks upon PtIr tip contact, indicating unconventional superconductivity. The study opens a new method to induce potential topological superconductivity on non-superconducting materials.
The Darknet's unique topology makes it difficult to attack, with an attack on a specific node requiring four times more strength than one on the internet. The network can easily counter large attacks by adding more capacity through its decentralized onion router protocol.
Researchers detected two-fold symmetry in superconductivity of SrxBi2Se3, providing new evidence for its topological superconductor status. The findings are consistent with earlier experiments and suggest nontrivial topological order in the material.
Researchers at the University of Pennsylvania have successfully grown a single layer of tungsten ditelluride, a unique two-dimensional material with predicted topological electronic states. This breakthrough could lead to advancements in quantum computing, as these materials may enable intrinsically error-tolerant forms of computation.
Researchers propose a new class of topological metals with unique electronic properties, including relativistic behavior and perfect compensation. This classification could help scientists find other materials with similar properties.
Physicists at the University of Würzburg have discovered a new electronic state in topological crystalline insulators, creating conductive channels for electrical currents. The channels are narrow and robust, making the materials suitable for ultra-fast and energy-efficient computers.
A team of international researchers has developed a scheme to protect groups of quantum particles and enable their coherent transportation. The proposal, based on the ideas of physicist David J. Thouless, utilizes topological pumping to move quantum states along a line of miniature quantum circuits.
Dusa McDuff and Dietmar Salamon will receive the 2017 AMS Steele Prize for Exposition for their comprehensive book on J-holomorphic curves and symplectic topology. The prize recognizes their contributions to the field, which has rapid development since Mikhael Gromov's introduction of J-holomorphic curves in 1985.
J. Michael Kosterlitz, Professor of Physics at Brown University, has been awarded the Nobel Prize in Physics for his groundbreaking work on topological phase transitions and exotic states of matter. His discoveries have opened up new avenues for materials science and electronics.
Researchers at MIT develop a theoretical model for topological semimetals, predicting several new ones with unique electrical properties. The model describes the chemical formula and crystal structure of a new material that should exhibit unprecedented electrical characteristics.
Researchers at LMU Munich develop a new method to probe the geometry of electronic states in solids using ultracold atoms in an optical lattice. The technique, based on Wilson lines, reveals both local and global properties of the band structure, including topological aspects.
Professor Manfra is leading a team at Purdue to develop new materials for topological qubits, which are expected to be more robust against noise. The team uses molecular beam epitaxy to create special, ultrapure materials and aims to bring scientists and engineers together to solve challenging technical problems.
Valery Lunts and Vladimir Touraev, both from Indiana University, have been named 2016 American Mathematical Society Fellows for their significant work in algebraic geometry, category theory, and low-dimensional topology. The recognition highlights the university's total of 15 AMS fellows across campuses.
Aalto researchers discover that electrons in a 'flat band' can carry electrical current, leading to potential breakthroughs in high temperature superconductivity. The key to this phenomenon lies in the quantum metric and Chern number, which measure the spread of electron waves in a crystal.
Fernando Codá Marques and André Neves have made groundbreaking contributions to differential geometry with their proof of the Willmore conjecture. The resolution has far-reaching implications for understanding surfaces and has illuminated new approaches to other significant questions in topology and geometry.
A Purdue University-led team observed an unexpected phase transition between two different phase categories in an ultrapure material. The transition was made possible by extreme pressures and temperatures, allowing electrons to exhibit unusual behavior.
Researchers develop a new theory that describes how a knot's topology determines its mechanical forces, providing guidelines for choosing certain knot configurations. The theory accurately predicts the force needed to close a knot, given its topology and strand properties.
Researchers at Aalto University predicted the existence of topological superconductors on metallic surfaces and thin films using mathematical models. The discovery could lead to new quantum states and potential applications in quantum computing.
Researchers have created a new type of pasta called 'anelloni' to demonstrate the complex shapes of ring-shaped polymers. Computer simulations show that these molecules can become tangled and appear frozen in place, potentially leading to a new state of matter called a 'topological glass'.
Researchers at ETH Zurich create an artificial graphene system that breaks time-reversal symmetry using laser beams and ultracold atoms. This setup enables the testing of the topological Haldane model, a concept first proposed in 1988, and paves the way for new electronic applications.
Researchers at MIT and Harvard University have found a way to render excitons immune to defects, improving photovoltaic devices' efficiency. The team used topological protection to create excitons that move only on the surface of materials, governed by applied magnetic fields.
Scientists at the Joint Quantum Institute have successfully demonstrated on-chip topological light, showcasing a robust and consistent method for photonic signal processing. The breakthrough enables the development of microscale delay lines with low energy loss, opening up new possibilities for quantum information processing.
A team of scientists has successfully created a triple twisted Möbius annulene, a complex molecule with three twists but only one surface. This achievement demonstrates their expertise in manipulating molecular structures and has significant potential for future applications in molecular electronics and optoelectronics.
Researchers at Princeton University have discovered a new class of quantum materials that enable electrons to flow through the interior with minimal resistance. This breakthrough has significant implications for future technologies, including faster electronics and quantum computing.
Researchers Chi Wu and Lianwei Li won the prize for their study on transporting polymer chains through a small cylindrical pore, discovering critical flow rates independent of chain length. The award recognizes significant contributions to modern polymer chemistry in China.
Vladimir Touraev, a renowned expert in low-dimensional topology, has been awarded $2.7 million by the Russian government to establish a scientific center in Chelyabinsk, Russia. The center will facilitate collaboration between IU scientists and their counterparts in Russia, promoting international research opportunities.
Researchers developed a printable, cuttable multi-touch sensor with robust circuit layout for various shapes and applications. The new design combines star and tree topology for improved functionality and durability.
Researchers used detached-eddy simulations to study new vortical flows over a 76/40 double delta wing, finding a new type of cross-flow vortex that differs from other vortices. The vortex is caused by cross-flow instability and can cause local pressure distribution deviations.
Researchers identified protein MCM that changes DNA topology, forming 'supercoils.' This can lead to cancer cells growing out of control. The study provides new insight into MCM's role in gene regulation and cancer.
Researchers at Indiana University identify a molecular 'switch' in clathrin that may play a role in suppressing tumors. The discovery could lead to new strategies for controlling cancer.
Researchers have developed a framework for creating new materials by applying mathematical theorems to liquid crystal mediums. This approach could lead to improved energy efficiency in display devices, such as laptops and TVs.