ÌÇÐÄÊÓÆµ - latest science and technology news stories / en-us ÌÇÐÄÊÓÆµ internet news portal provides the latest news on science including: ÌÇÐÄÊÓÆµics, ÌÇÐÄÊÓÆµ, Life Sciences, Space Science, Earth Science, Environment, Health and Medicine. Universal law of quantum vortex dynamics discovered in superfluid helium An international research collaboration featuring scientists from the FAMU-FSU College of Engineering and the National High Magnetic Field Laboratory has discovered a fundamental universal principle that governs how microscopic whirlpools interact, collide and transform within quantum fluids, which also has implications for understanding fluids that behave according to classical physics. /news/2025-06-universal-law-quantum-vortex-dynamics.html Soft Matter Quantum ÌÇÐÄÊÓÆµics Wed, 04 Jun 2025 14:47:04 EDT news668267221 Advanced digital detector array enhances charged-particle decay studies Exotic nuclei near and beyond the proton drip line exhibit a range of unique decay processes, including β-delayed proton emission, α decay, and direct proton radioactivity. Spectroscopic studies utilizing high-efficiency, low-threshold detection systems have become essential for exploring the intricate properties of these nuclei. /news/2025-04-advanced-digital-detector-array-particle.html General ÌÇÐÄÊÓÆµics Tue, 29 Apr 2025 17:05:03 EDT news665165101 Study unveils contributions to superconductivity in the vortex lattice structure of 2H-NbSeâ‚‚ Superconductivity is a quantum property of materials entailing an electrical resistance of zero at very low temperatures. In some materials, multiple electronic bands are known to contribute to the emergence of superconductivity, leading to multiple superconducting energy gaps. This phenomenon is referred to as multiband superconductivity. /news/2025-04-unveils-contributions-superconductivity-vortex-lattice.html Superconductivity Wed, 09 Apr 2025 07:00:01 EDT news663324873 Olympicene molecular chains create quantum spin systems with spintronics applications In a new publication in Nature Materials, an international team of researchers has developed groundbreaking artificial chains of the iconic "olympicene" molecules to realize the antiferromagnetic (AF) spin-½ Heisenberg model, a flagship quantum spin model that has been the cornerstone of quantum magnetism, since the seminal work of Bethe, for almost a century now. This study makes nanographenes (NGs) an ideal platform for realizing and studying highly entangled quantum spin systems, with potential applications in insulator-based AF spintronics. /news/2025-03-olympicene-molecular-chains-quantum-spintronics.html Condensed Matter Quantum ÌÇÐÄÊÓÆµics Fri, 14 Mar 2025 11:23:03 EDT news661170181 Graphene's quantum spin injection promises energy-efficient spintronics Researchers at the National Graphene Institute at the University of Manchester have achieved a significant milestone in the field of quantum electronics with their latest study on spin injection in graphene. The paper, published recently in Communications Materials, outlines advancements in spintronics and quantum transport. /news/2025-02-graphene-quantum-energy-efficient-spintronics.html Condensed Matter Quantum ÌÇÐÄÊÓÆµics Wed, 26 Feb 2025 12:50:33 EST news659796630 Illuminating an asymmetric gap in a topological antiferromagnet Topological insulators (TIs) are among the hottest topics in condensed matter physics today. They're a bit strange: Their surfaces conduct electricity, yet their interiors do not, instead acting as insulators. ÌÇÐÄÊÓÆµicists consider TIs the materials of the future because they host fascinating new quantum phases of matter and have promising technological applications in electronics and quantum computing. Scientists are just now beginning to uncover connections between TIs and magnetism that could unlock new uses for these exotic materials. /news/2025-01-illuminating-asymmetric-gap-topological-antiferromagnet.html Condensed Matter Quantum ÌÇÐÄÊÓÆµics Tue, 21 Jan 2025 16:47:15 EST news656700425 Quantum breakthrough may lead to sustainable chiral spintronics A team of physicists led by The City College of New York's Lia Krusin-Elbaum has developed a novel technique that uses hydrogen cations (H+) to manipulate relativistic electronic bandstructures in a magnetic Weyl semimetal—a topological material where electrons mimic massless particles called Weyl fermions. These particles are distinguished by their chirality or "handedness" linked to their spin and momentum. /news/2025-01-quantum-breakthrough-sustainable-chiral-spintronics.html Quantum ÌÇÐÄÊÓÆµics Sat, 11 Jan 2025 06:14:19 EST news655798454 ÌÇÐÄÊÓÆµicists uncover strong light-matter interactions in quantum spin liquids ÌÇÐÄÊÓÆµicists have long theorized the existence of a unique state of matter known as a quantum spin liquid. In this state, magnetic particles do not settle into an orderly pattern, even at absolute zero temperature. Instead, they remain in a constantly fluctuating, entangled state. /news/2024-12-physicists-uncover-strong-interactions-quantum.html Quantum ÌÇÐÄÊÓÆµics Thu, 12 Dec 2024 13:03:04 EST news653230981 Particle that only has mass when moving in one direction observed for first time For the first time, scientists have observed a collection of particles, also known as a quasiparticle, that's massless when moving one direction but has mass in the other direction. The quasiparticle, called a semi-Dirac fermion, was first theorized 16 years ago, but was only recently spotted inside a crystal of semi-metal material called ZrSiS. The observation of the quasiparticle opens the door to future advances in a range of emerging technologies from batteries to sensors, according to the researchers. /news/2024-12-particle-mass.html General ÌÇÐÄÊÓÆµics Condensed Matter Tue, 10 Dec 2024 11:15:31 EST news653051727 New method realize ohmic contacts in n-type MoSâ‚‚ transistors at cryogenic temperatures Semiconducting transition metal dichalcogenides (TMDs) are a class of layered materials exhibiting unique optoelectronic properties that could be leveraged to develop transistors, sensors and other nanoelectronics. Despite their advantages, creating robust ohmic contacts that connect a metal electrode in transistors to semiconducting TMDs at cryogenic temperatures has proved challenging. /news/2024-11-method-ohmic-contacts-mos-transistors.html Nanophysics Nanomaterials Tue, 03 Dec 2024 08:30:01 EST news652100481 Quantum vortices confirm superfluidity in supersolid Supersolids are a new form of quantum matter that has only recently been demonstrated. The state of matter can be produced artificially in ultracold, dipolar quantum gases. A team led by Innsbruck physicist Francesca Ferlaino has now demonstrated a missing hallmark of superfluidity, namely the existence of quantized vortices as a system's response to rotation. They have observed tiny quantum vortices in the supersolid, which also behave differently than previously assumed. /news/2024-11-quantum-vortices-superfluidity-supersolid.html Condensed Matter Quantum ÌÇÐÄÊÓÆµics Wed, 06 Nov 2024 11:00:01 EST news650107556 Tracking down nuclear fission's elusive scission neutron with a supercomputer Nuclear fission—when the nucleus of an atom splits in two, releasing energy—may seem like a process that is fully understood. First discovered in 1939 and thoroughly studied ever since, fission is a constant factor in modern life, used in everything from nuclear medicine to power-generating nuclear reactors. However, it is a force of nature that still contains mysteries yet to be solved. /news/2024-10-tracking-nuclear-fission-elusive-scission.html General ÌÇÐÄÊÓÆµics Wed, 23 Oct 2024 16:33:04 EDT news648919982 A detailed microscopic theory: Lifting the veil of topological censorship Topological protection provides unprecedented robustness of physical phenomena against all kinds of perturbations; but in doing so, it exercises topological censorship by hiding all kinds of interesting and important microscopic information. Recent experiments have collected microscopic information precisely of the kind hidden by such topological censorship. /news/2024-09-microscopic-theory-veil-topological-censorship.html Condensed Matter Quantum ÌÇÐÄÊÓÆµics Wed, 25 Sep 2024 15:27:51 EDT news646496866 Study predicts a new quantum anomalous crystal in fractionally filled moiré superlattices Moiré superlattices, structures that arise when two layers of two-dimensional (2D) materials are overlaid with a small twist angle, have been the focus of numerous physics studies. This is because they have recently been found to host novel fascinating unobserved physical phenomena and exotic phases of matter. /news/2024-08-quantum-anomalous-crystal-fractionally-moir.html Condensed Matter Quantum ÌÇÐÄÊÓÆµics Mon, 02 Sep 2024 08:00:01 EDT news644227157 Photon entanglement could explain the rapid brain signals behind consciousness Understanding the nature of consciousness is one of the hardest problems in science. Some scientists have suggested that quantum mechanics, and in particular quantum entanglement, is the key to unraveling the phenomenon. /news/2024-08-photon-entanglement-rapid-brain-consciousness.html General ÌÇÐÄÊÓÆµics Quantum ÌÇÐÄÊÓÆµics Fri, 16 Aug 2024 08:55:03 EDT news643017296 ÌÇÐÄÊÓÆµicists throw world's smallest disco party with a levitating ball of fluorescent nanodiamond ÌÇÐÄÊÓÆµicists at Purdue are throwing the world's smallest disco party. The disco ball itself is a fluorescent nanodiamond, which they have levitated and spun at incredibly high speeds. The fluorescent diamond emits and scatters multicolor lights in different directions as it rotates. The party continues as they study the effects of fast rotation on the spin qubits within their system and are able to observe the Berry phase. /news/2024-08-physicists-world-smallest-disco-party.html Quantum ÌÇÐÄÊÓÆµics Wed, 14 Aug 2024 13:14:04 EDT news642860041 'Kink state' control may provide pathway to quantum electronics The key to developing quantum electronics may have a few kinks. According to a team led by researchers at Penn State, that's not a bad thing when it comes to the precise control needed to fabricate and operate such devices, including advanced sensors and lasers. /news/2024-07-kink-state-pathway-quantum-electronics.html Condensed Matter Quantum ÌÇÐÄÊÓÆµics Fri, 26 Jul 2024 09:05:04 EDT news641203502 Scientists develop novel one-dimensional superconductor In a significant development in the field of superconductivity, researchers at The University of Manchester have successfully achieved robust superconductivity in high magnetic fields using a newly created one-dimensional (1D) system. This breakthrough offers a promising pathway to achieving superconductivity in the quantum Hall regime, a longstanding challenge in condensed matter physics. /news/2024-04-scientists-dimensional-superconductor.html Superconductivity Wed, 24 Apr 2024 11:00:01 EDT news633168329 Tunable quantum anomalous Hall effects in van der Waals heterostructures The quantum anomalous Hall effect (QAHE) has unique advantages in topotronic applications, but realizing the QAHE with tunable magnetic and topological properties for building functional devices is still a key scientific challenge. Through first-principles calculations, researchers have predicted a candidate material that meets these requirements. /news/2024-04-tunable-quantum-anomalous-hall-effects.html Condensed Matter Quantum ÌÇÐÄÊÓÆµics Tue, 23 Apr 2024 04:01:52 EDT news633063708 A single photon emitter deterministically coupled to a topological corner state Exploring cavity quantum electrodynamics (cQED) is pivotal for advancing quantum technology and unraveling the fundamental intricacies of light-matter interactions. A prevalent strategy involves integrating a single quantum emitter into photonic microcavities boasting high-quality (Q) factors or small mode volumes. The strength of the coupling in cQED is often assessed using the Purcell factor, a vital parameter. /news/2024-04-photon-emitter-deterministically-coupled-topological.html Optics & Photonics Quantum ÌÇÐÄÊÓÆµics Tue, 02 Apr 2024 14:07:03 EDT news631285622 Weird electron behavior gets even weirder: Charge fractionalization observed spectroscopically A research team led by the Paul Scherrer Institute has spectroscopically observed the fractionalization of electronic charge in an iron-based metallic ferromagnet. Experimental observation of the phenomenon is not only of fundamental importance. Since it appears in an alloy of common metals at accessible temperatures, it holds potential for future exploitation in electronic devices. The discovery is published in the journal Nature. /news/2024-03-weird-electron-behavior-weirder-fractionalization.html Condensed Matter Quantum ÌÇÐÄÊÓÆµics Wed, 06 Mar 2024 12:29:06 EST news628950541 Scientists discover exotic quantum interference effect in a topological insulator device In a novel experiment, physicists have observed long range quantum coherence effects due to Aharonov-Bohm interference in a topological insulator-based device. This finding opens up a new realm of possibilities for the future development of topological quantum physics and engineering. /news/2024-02-scientists-exotic-quantum-effect-topological.html Condensed Matter Quantum ÌÇÐÄÊÓÆµics Thu, 22 Feb 2024 08:44:06 EST news627813842 ÌÇÐÄÊÓÆµicists discover a quantum state with a new type of emergent particles: Six-flux composite fermions If the fractional quantum Hall regime were a series of highways, these highways would have either two or four lanes. The flow of the two-flux or four-flux composite fermions, like automobiles in this two- to four-flux composite fermion traffic scenario, naturally explains the more than 90 fractional quantum Hall states that form in a large variety of host materials. ÌÇÐÄÊÓÆµicists at Purdue University have recently discovered, though, that fractional quantum Hall regimes are not limited to two-flux or four-flux and have discovered the existence of a new type of emergent particle, which they are calling six-flux composite fermion. /news/2024-02-physicists-quantum-state-emergent-particles.html Condensed Matter Quantum ÌÇÐÄÊÓÆµics Wed, 21 Feb 2024 16:49:03 EST news627756541 Ushering in the era of light-powered 'multi-level memories' We live in an era of data deluge. The data centers that are operated to store and process this flood of data use a lot of electricity, which has been called a major contributor to environmental pollution. To overcome this situation, polygonal computing systems with lower power consumption and higher computation speed are being researched, but they are not able to handle the huge demand for data processing because they operate with electrical signals, just like conventional binary computing systems. /news/2023-10-ushering-era-light-powered-multi-level-memories.html Condensed Matter Quantum ÌÇÐÄÊÓÆµics Tue, 17 Oct 2023 11:00:02 EDT news616759201 Q&A: Expert discusses past and future of Nobel-winning quantum dots technology The world woke up on Oct. 3 to learn that Moungi Bawendi of MIT, Louis Brus of Columbia University, and Alexei Ekimov of Nanocrystals Inc. received the Nobel Prize in Chemistry for their discovery and synthesis of semiconductor quantum dots. /news/2023-10-qa-expert-discusses-future-nobel-winning.html Analytical Chemistry Materials Science Wed, 11 Oct 2023 14:40:05 EDT news616254002 Researchers find a new quantum ruler to explore exotic matter A single-atom-thick sheet of carbon known as graphene has remarkable properties on its own, but things can get even more interesting when you stack up multiple sheets. /news/2023-10-quantum-ruler-explore-exotic.html Condensed Matter Quantum ÌÇÐÄÊÓÆµics Thu, 05 Oct 2023 14:00:02 EDT news615716614 Researchers propose new technology to improve observation sensitivity of QiTai radio telescope The world's most powerful steerable 110-meter radio telescope, also known as the QiTai radio Telescope (QTT), will be built by Xinjiang Astronomical Observatory (XAO) of the Chinese Academy of Sciences (CAS) over a period of six years. Its ceremony kicked off on Sept. 21, 2022. /news/2023-08-technology-sensitivity-qitai-radio-telescope.html Astronomy Tue, 29 Aug 2023 10:28:32 EDT news612523710 When electrons slowly vanish during cooling: Researchers observe an effect unique to the quantum world Many substances change their properties when they are cooled below a certain critical temperature. Such a phase transition occurs, for example, when water freezes. However, in certain metals there are phase transitions that do not exist in the macrocosm. They arise because of the special laws of quantum mechanics that apply in the realm of nature's smallest building blocks. /news/2023-07-electrons-slowly-cooling-effect-unique.html Condensed Matter Quantum ÌÇÐÄÊÓÆµics Mon, 31 Jul 2023 11:58:04 EDT news610023482 Scientists discover quantum oscillations in correlated insulators Quantum oscillations (QOs) of conductance in the magnetic field are widely observed in mesoscopic devices thanks to the Landau quantization, and thus QOs are commonly used as a powerful tool to measure the Fermi surface of metals. In contrast, QOs are usually absent for insulators due to the zero density of state in the gap. /news/2023-06-scientists-quantum-oscillations-insulators.html Condensed Matter Quantum ÌÇÐÄÊÓÆµics Tue, 13 Jun 2023 13:10:43 EDT news605880641 Tiny quantum electronic vortexes can circulate in superconductors in ways not seen before Within superconductors little tornadoes of electrons, known as quantum vortices, can occur which have important implications in superconducting applications such as quantum sensors. Now a new kind of superconducting vortex has been found, an international team of researchers reports. /news/2023-06-tiny-quantum-electronic-vortexes-circulate.html Superconductivity Quantum ÌÇÐÄÊÓÆµics Thu, 01 Jun 2023 14:00:04 EDT news604846198