Articles tagged with Quantum Mechanics
A team at Osaka University has successfully demonstrated experimental evidence and theoretical calculations to show that Coulomb blockade occurs on two-dimensional organic conducting polymer films. This breakthrough could revolutionize our understanding and design properties of organic and molecular devices.
Two University of Rochester scientists discovered the 17th century Wallis formula for pi in a quantum mechanics formula for hydrogen atom energy states. The discovery underscores pi's omnipresence in math and science.
Vyjayanthi Chari, a professor at UC Riverside, is recognized as a Fellow of the American Mathematical Society for her contributions to the theory of quantum groups and affine Lie algebras. She has also made significant contributions to mentoring graduate students and postdocs.
Researchers have pushed boundaries to establish new limits in science, from growing carbon nanotubes with exceptional reflectivity to studying extremophiles like Deinococcus radiodurans. These discoveries highlight the importance of exploring extremes and advancing our understanding of physics.
Engineered viruses were used by MIT researchers to achieve a significant efficiency boost in a light-harvesting system, utilizing quantum effects to enhance exciton transport. The team successfully more than doubled the speed of excitons, increasing the distance they traveled before dissipating.
Ramanujan's original taxi-cab number, 1729, contains hidden meanings that relate to elliptic curves and K3 surfaces. Mathematicians have found a 'magic key' in his formula that can reveal secrets of these objects.
A team of scientists at the University of the Basque Country has successfully simulated actions that contradict the fundamental laws of quantum physics in a laboratory setting. Using trapped atoms, they have reproduced symmetry operations previously thought to be impossible in the atomic world.
Scientists from India developed a theory governing curved graphene using a quantum simulator based on an optical lattice. The findings could lead to novel graphene-based sensors with controlled deformation.
Physicists have developed a radical new theory that confines electromagnetic energy without leaking away, with potential applications in explaining dark matter and combating energy losses. The theory contradicts fundamental principles of electrodynamics but could lead to breakthroughs in quantum computers and laser technology.
Scientists have successfully simulated significant parts of the LHC-II molecule using supercomputers, proving that theories align with reality. This breakthrough enables understanding of reactions during early stages of photosynthesis for the first time.
Physicists suggest detecting dark matter through radiation signals created by particle collisions, increasing chances of detection in underground detectors and specific areas in space. The current satellite-based experiments may have been searching for the wrong signals.
A team of researchers developed an artificial model system to study quantum effects in light harvesting, revealing a delicate interplay between molecular vibrations and electrons. The resulting theoretical model explains experiments perfectly, shedding light on the physical mechanisms necessary for energy-efficient photovoltaic cells.
Physicists have successfully frozen single charged atoms to within a millionth of absolute zero using microwave radiation, paving the way for simplified construction of quantum technology devices. This technique will enable the creation of powerful quantum sensors, ultra-fast quantum computers, and ultra-stable quantum clocks.
A new calculation method developed by a UCL-led team of scientists can accurately predict how much radiation carbon dioxide absorbs, reducing uncertainties in climate change modeling and enabling more accurate predictions about Earth's warming over the next few decades. The improved accuracy will enable missions to achieve their goals.
Columbia University researchers develop a new technique to create single-molecule diodes, outperforming previous designs by 50 times. The breakthrough enables high current flow and rectification ratios, paving the way for nanoscale devices with real-world technological applications.
The North American Nanohertz Observatory for Gravitational Waves (NANOGrav) has received $14.5 million in NSF funding to create a Physics Frontiers Center to detect low-frequency gravitational waves using millisecond pulsars as a detection tool.
A research group at Aarhus University developed a computer game called Quantum Moves, played 400,000 times by ordinary people, providing unique insight into the human brain's ability to solve problems. The results show females outperform males in solving problems, highlighting an unexploited capacity for ingenuity in the human brain.
Researchers have found that birds can sense the earth's magnetic field and use it to orient themselves. The cryptochrome protein is thought to play a key role in this process.
A Florida State University researcher developed a theory to explain why certain materials behave, using quantum simulations and statistical methods. The study provides confidence levels in material predictions, enabling faster engineering design.
Researchers developed a new model describing atomic nuclei that better predict exotic isotope properties. This improvement enables simulations of supernova explosions and nuclear reactor processes.
A panel of quantum experts will share their insights on the origins, achievements and long-term predictions of quantum research. The discussion aims to explore transformational opportunities of quantum information technologies.
Researchers have developed a new method for authenticating physical keys using quantum mechanics, making it impossible to spoof or copy. This 'Quantum-Secure Authentication' uses the unique properties of light to create a secure question-and-answer exchange.
Researchers at UC San Diego have developed a more efficient method to trap light by harnessing bound states in the continuum. This innovation addresses the major challenge of trapping and utilizing light for optical computing circuits.
A novel ultrafast quantum chemical method called FMO-DFTB enables rapid simulations of complex molecular systems, achieving a huge improvement over traditional methods. The method has successfully evaluated large molecules including polypeptides, DNA segments, small proteins, and fullerite surfaces.
Researchers Jan Boeyens and Francis Thackeray found a connection between the Golden Ratio, space-time, and a biological species constant. The study suggests that concepts associated with relativity and quantum mechanics can be integrated through the number 1.618.
A £120 million investment will fuel the development of secure communication technologies, leveraging quantum physics to transform data security and transactions. The Quantum Communications Hub brings together world-leading researchers from top UK universities, with potential applications in healthcare, communications, and security.
Researchers discovered graphene's ability to rectify electric current using artificial triangular holes, offering a new approach for security screening detectors. The study provides an analytical framework for estimating the ratchet effect, which could lead to terahertz radiation detection.
Researchers found a surprising regularity in human behavior using quantum theory to analyze survey questions. The study identified 'quantum question equality,' where people switch their responses systematically when the order of questions is reversed.
Researchers at Washington State University have confirmed a 60-year-old prediction of atomic behavior using a super-cold cloud of atoms. This discovery opens a new experimental path to potentially powerful quantum computing by inducing coherent 'superradiant' behavior predicted by Robert Dicke in 1954.
Researchers at the University of Glasgow discovered that proteins like lysozyme can vibrate at frequencies similar to a few terahertz, allowing for efficient biochemical reactions. This 'ringing' motion enables proteins to morph quickly and bind with other molecules, critical for life's biological functions.
Researchers investigate quantum fluids and their chaotic motion at near-zero temperatures. The study aims to unlock the mysteries of this phenomenon, which has significant implications for daily life and galactic magnetic fields.
Researchers at the University of Bristol have developed a scheme to enable quantum cryptography on mobile phones, using photons as information carriers. This breakthrough technology has the potential to make secure communication available to the general public.
Senior lecturer Felicity Mellor highlights the role of silence in physics history, citing Newton's isolated work and Heisenberg's retreat to Heligoland. She questions whether modern-day scientists have control over communication levels, arguing that a balance between silence and collaboration is key.
Researchers at SDSC developed software for multi-scale QM/MM simulations, expanding types of simulations that scientists can use to design new drugs and chemicals. The software integrates with AMBER molecular simulation package, reaching a large user base.
Researchers at MIT predict the existence of six new types of topological insulators with unusual properties, which may provide insights into quantum physics. The team's analysis reveals that these materials' physical properties can be identified unambiguously in a lab.
Scientists demonstrated a breakthrough in quantum cryptography, enabling perfectly secure data transmission between two sites for up to fifteen milliseconds. This achievement marks the first step towards impregnable information networks controlled by Einstein's relativity and quantum theory.
Researchers from NIST and JQI have developed a silicon device that can efficiently transport photons, which could lead to significant improvements in computer efficiency. The device uses a novel arrangement of rings to guide photons along the edge of an array, enabling it to function even if some rings are defective.
Dvali and collaborator Cesar Gomez will investigate if black holes possess matter with Einstein-Bose properties, potentially altering our understanding of gravity and space-time. They believe black holes are a collection of Bose-Einstein condensates, challenging classical physics assumptions.
Researchers at MIT have elucidated a 37th type of chemical reaction, crucial for understanding climate-affecting aerosols and human physiology. The reaction involves the decomposition of complex organic molecules and has significant implications for combustion reactions in engines.
Theorists have found new methods to determine the likelihood of quantum encryption scheme failure, enabling device-independent cryptography. This allows for the estimation of failure probabilities without relying on assumptions about the reliability of devices.
Researchers have directly observed Hofstadter's Butterfly, a complex pattern of energy states resembling a butterfly, in graphene. The phenomenon confirms decades-long theoretical predictions and may lead to the discovery of new electrical properties.
Kimball Milton, a University of Oklahoma physics professor, has been awarded a grant from the Simons Foundation Fellows Program in Theoretical Physics. He will explore the physics and applications of the quantum vacuum, including the Casimir effect and its potential for practical uses in nanoscale machines.
Researchers from RUB discover that adding hydrogen molecules to CH5+ gives it a rudimentary structure, freezing its dynamically flexible form. This breakthrough could enable experimental measurements of the molecule's vibrational spectra.
Researchers have successfully replicated Feynman's famous double-slit thought-experiment using a gold-coated silicon membrane and a moveable mask. This achievement demonstrates the mysterious properties of electrons, including their ability to produce an interference pattern when fired at the wall one at a time.
The Alfred P. Sloan Foundation has honored 126 outstanding U.S. and Canadian researchers as recipients of the prestigious Sloan Research Fellowships for 2013. These early-career scientists are making significant contributions to various fields, including computer science, mathematics, molecular biology, chemistry, oceanography, economi...
Canadian Institute for Quantum Computing research focuses on harnessing quantum laws to develop game-changing technologies. Experts hope to engineer benefits of quantum mechanics in sensor technology.
A paper coauthored by Pitt professor Sergey Frolov has won the 2012 Newcomb Cleveland Prize for its discovery of Majorana fermions, a physics particle ideal for quantum computing. The prize carries a $25,000 cash award and recognizes fundamental contributions to basic knowledge.
Researchers have successfully hybridized electronic and nuclear spin qubits using bismuth, enabling easier control over these complex systems. This breakthrough brings us closer to creating practical quantum computing capable of solving complex problems.
Kansas State University assistant professor Carlos Trallero has received two prestigious national awards for his research on quantum laws. He will use nearly $1 million from the National Science Foundation to buy a world-class femtosecond laser.
The JYFL-ACCLAB Centre of Excellence has made significant advancements in studying the nucleus 256Rf, providing insights into the stability of superheavy elements. This breakthrough is crucial for understanding the 'island of stability' and its implications for nuclear physics.
Researchers have discovered a way to manipulate and measure quantum processes in solid-state systems using highly purified silicon. This breakthrough could enable the creation of practical quantum computers, which would revolutionize computing capabilities.
The National Science Foundation has awarded five University of Houston students with Graduate Research Fellowships to pursue advanced degrees in various fields. The fellows will study at top institutions including Harvard, MIT, and the University of Michigan, and receive funding for tuition and a $30,000 annual stipend.
Researchers found a way to influence electron flow through graphene by mounting it on boron nitride, enabling more controlled electronic properties. The discovery creates hexagonal structures that prevent some electrons from passing through, opening up new possibilities for graphene-based microelectronics.
Researchers found that current estimates of ice-giant planetary interiors overstate water's compressibility by as much as 30 percent. Accurate estimates are essential to calculate the evolution of the universe and model the composition of planets like Neptune and Uranus.
Physicists have discovered a new class of topological insulators with unique properties, including deep-laying conducting states. The materials are insulators in bulk but conductors at the surface, making them promising for applications in spintronics and quantum computation.
Researchers demonstrate longest-ever deployment of a quantum key distribution network, showing its robustness and reliability when coupled with real-time telecommunications. The SwissQuantum network ran for over 21 months, outperforming traditional encryption methods.
A study of Nobel Laureates from 1901 to 2008 found that the majority of breakthroughs in chemistry and physics were made after age 40, with great achievements by age 30 nearly never occurring. The trend toward youthful achievement in early 20th century physics may be attributed to the development of quantum mechanics.
Researchers have discovered a way to create molecular 'circuitry' that can capture, direct, regulate and amplify raw solar energy. By leveraging the collective quantum properties of natural light-harvesting systems, scientists can design efficient antennas that transfer energy quickly and regulatedly.
New research by University of York scientists proposes that quantum mechanics could be the key to understanding how black holes work, potentially allowing information to escape. The study's findings suggest a possible breakthrough in our understanding of gravity and its relationship with space and time.
Researchers at Forschungszentrum Jülich and universities of Kiel and Hamburg discovered a regular lattice of stable magnetic skyrmions on a surface, opening up new possibilities for data storage. The tiny formations, made up of just 15 atoms, exist without an external magnetic field and are located on the surface.