The first topological acoustic transistor
Topological materials move electrons along their surface and edges without any loss, making them promising materials for dissipationless, high-efficiency electronics. Researchers are especially interested in using these materials as transistors, the.....»»
Newly discovered magnetic interactions could lead to novel ways to manipulate electron flow
Newly discovered magnetic interactions in the Kagome layered topological magnet TbMn6Sn6 could be the key to customizing how electrons flow through these materials. Scientists from the U.S. Department of Energy's Ames National Laboratory and Oak Ridg.....»»
Topographic complexity is the most significant factor influencing bird acoustic indices in tropical forests
Ecoacoustics is an interdisciplinary science investigating soundscapes and their association with the environment over various temporal and spatial scales. Despite the data processing challenges (e.g., automated species identification), soundscape mo.....»»
NASA data, acoustic soundscapes assess health of Amazon rainforest
From space, parts of the Amazon rainforest that have previously been logged or burned may look fully recovered with a healthy, lush, and green canopy. They may seem to be places buzzing with activity and full of sounds. But inside the rainforest the.....»»
Auto supplier Gissing North America files for bankruptcy
Gissing is a subsidiary of a Chinese automotive supplier, and manufactures interior acoustic and cargo management systems......»»
How ancient soldiers used sound to frighten and confuse their enemies
As if the tumultuous din of battle is not horrendous enough, over the ages humans have discovered plenty of ways to exploit sound in warfare. I found an astonishing variety of ancient acoustic weapons while researching my book "Greek Fire, Poison Arr.....»»
How bat brains listen for incoming signals during echolocation
Neuroscientists at Goethe University, Frankfurt have discovered a feedback loop that modulates the receptivity of the auditory cortex to incoming acoustic signals when bats emit echolocation calls. In a study published in the journal Nature Communica.....»»
Acoustics researchers develop novel underwater carpet cloak
Acoustic camouflage, realized by controlling wave propagation, has attracted much attention in recent years. Aided by a reflecting surface, acoustic carpet cloak has become one of the most practically feasible invisibility devices......»»
Physicists use quantum simulation tools to study, understand exotic state of matter
Thomas Iadecola worked his way through the title of the latest research paper that includes his theoretical and analytical work, patiently explaining digital quantum simulation, Floquet systems and symmetry-protected topological phases......»»
Samsung 3nm GAA commercialization signifies paradigm shift in transistor architecture
The most important significance of Samsung Electronics recently commercializing its 3nm GAA (gate-all-around) process technology lies in leading the paradigm shift of next-generation transistor architecture from FinFET ( fin field-effect transistor).....»»
Characterizing the materials for next-generation quantum computers with nonlinear optical spectroscopy
Researchers at the Department of Physics and the Cluster of Excellence "CUI: Advanced Imaging of Matter" of Universität Hamburg and the University of California at Irvine have recently proposed a new way to characterize topological superconductors b.....»»
Samsung begins 3nm chip production
Samsung Electronics has announced that it has started initial chip production of its 3nm process node applying gate-all-around (GAA) transistor architecture......»»
Forget Lasers. The Hot New Tool for Physicists Is Sound
From acoustic tweezers to holograms, engineers are taking inspiration from the field of optics—and riding the sound wave......»»
Topology and machine learning reveal hidden relationship in amorphous silicon
Theoretical scientists have used topological mathematics and machine learning to identify a hidden relationship between nano-scale structures and thermal conductivity in amorphous silicon, a glassy form of the material with no repeating crystalline o.....»»
Exotic photonic crystals empower robust one-way transport of light
Topological photonics is an emerging area that provides unprecedented opportunities for controlling the flow of light in photonic integrated circuits. With the introduction of non-trivial topological phases, a one-way street for light is feasible in.....»»
Discovering a hybrid skin-topological effect induced by gain and loss
Recently, Associate Professor Yong-Chun Liu of the Department of Physics and others have found the hybrid skin-topological effect induced by gain and loss and the parity-time phase transition between skin-topological modes. The research results were.....»»
The ocean is not a quiet place
For a long time, the great ocean explorers used sight to reveal the secrets of the marine environment, downplaying its acoustic aspects. Indeed, the ocean has long been considered a place devoid of any sound......»»
The formation of gap solitons in a 1D dissipative topological lattice
Topological photonics is a rapidly evolving area of research that focuses on the design of photonic lattices where the behavior of light is inspired from the physics of topological insulators. While most studies in this area presented photonic system.....»»
Topological phase detected in spin chains
In some materials, there are phases between which a transition is not possible because they are protected by a certain form of symmetry. Physicists refer to these as topological phases. One example of this is the Haldane phase, named after the 2016 N.....»»
Configurable topological beam splitting via antichiral gyromagnetic photonic crystal
Topological insulators, whose bulky states are prohibited while surface/edge states are conductive and topologically protected. Recent advances in topologically protected edge states have drawn growing attention in the optics and photonics community......»»
Chip-scale Floquet topological insulators to enhance 5G wireless communications
Floquet topological insulators are materials with topological phases that originate from tailored time-dependent perturbations of their crystal structure. These materials have been proved to feature highly unusual electron conduction properties. In r.....»»