Articles tagged with Quantum Mechanics
Researchers at TU Wien successfully measured a novel quantum effect in neutron spin, demonstrating inertial effects. The experiment involved exposing neutrons to a rotating magnetic field, revealing the coupling between spin and rotation.
Researchers used quantum mechanical computations to study the thermal conductivity of postperovskite at lower mantle conditions. The study found a significant jump in thermal conductivity associated with phase transition, which affects heat flux across the core-mantle boundary.
Researchers at ETH Zurich present theoretical and experimental work that provides a higher-level understanding of 'fragile topology' in topological insulators. The discovery could lead to new applications in acoustics, photonics, and beyond.
A UNIGE physicist proposes altering the mathematical language of classical physics to allow for indeterminism and randomness, resolving contradictions with quantum physics. This shift would enable a more intuitive approach to understanding the world, closer to our everyday experience.
Physicists have created a detailed band structure map for iron selenide, exposing its electronic signature and shedding light on its complex behavior. The study aims to guide the development of new materials with amazing properties.
Researchers at Universitat Autonoma de Barcelona developed an optimal procedure to identify clusters of identically prepared quantum systems, solving the challenge of sorting quantum data. The new protocol outperforms classical strategies, particularly for large dimensional data.
Researchers at Yale University are developing new materials that can mimic neurons, compute with magnets, and calculate using quantum mechanics. The team used a precision measurement technique to create artificial crystals composed of elements from the periodic table.
A research team has found a way to overcome the limitations of graphene-based molecular devices, creating structures that are both electrically and mechanically stable at room temperature. The breakthrough, published in Nature Nanotechnology, uses a combination of covalent binding and large ۆ-conjugated head groups to achieve stability.
Researchers from Chalmers University of Technology have demonstrated a graphene-based detector that can detect faint cosmic signals with high sensitivity and large bandwidth. The device's low power requirements make it ideal for future space missions, enabling 3D imaging of the universe.
The quantum technology company Q-CTRL has secured a $15 million funding round led by Square Peg Capital, placing it among the top 10 global quantum start-ups. The investment will support major growth for the company and geographic expansion to include a new office in Los Angeles.
Researchers have built the world's smallest engine, a single calcium ion, which uses random fluctuations to generate vibrations and store energy in discrete units. This tiny motor has potential applications in recycling waste heat and improving energy efficiency in future technologies.
A team of Virginia Tech researchers has advanced quantum simulation by devising an algorithm that can more efficiently calculate the properties of molecules on a noisy quantum computer. The breakthrough enables simulating molecular properties, which can lead to advances in materials improvement and drug discovery.
Researchers at the University of Vienna successfully implemented a counterfactual communication protocol, where information travels from Bob to Alice while photons travel in the opposite direction. This innovation resolves two major drawbacks of previous implementations and contradicts a crucial premise of communication theory.
Researchers from NUS have developed a novel approach to confine heat within a small region of a metal ring, demonstrating the application of anti-parity-time symmetry to thermal diffusion. This breakthrough has significant implications for optimizing cooling systems and efficient heat removal in modern technologies.
A new machine learning approach enables researchers to encode quantum mechanical laws into neural nets, simulating molecular motion billions of times faster than conventional methods. This breakthrough advances research in fields like drug development, protein simulations, and reactive chemistry.
University of Copenhagen researchers create a nanomechanical router that emits quantum information carried by light particles, enabling the scaling up of quantum technology. The component's tiny size makes it promising for future applications, potentially achieving 'quantum supremacy' with tens of photons simultaneously.
University of Barcelona researchers have developed a new continuous version of Maxwell's demon in a single molecule system, enabling large amounts of work extraction through repeated measurements. The device can find the right moment to extract energy, with potential applications in biology and quantum systems.
Researchers at Kazan University have discovered that amorphous materials exhibit outstanding physical and mechanical properties, including strength, electric conductivity, and corrosion resistance. The study found that these materials can crystallize into a monocrystal or polycrystalline structure under different temperature conditions.
Researchers at Aalto University have successfully controlled energy losses and shifts in a high-quality superconducting resonator, allowing for increased dissipation rate on demand. This breakthrough has significant implications for the development of larger-scale quantum computers and innovative quantum technological devices.
The researchers created an artificial macroscopic crystal inspired by Japanese baskets, emulating the valley-Hall effect in quantum physics. This led to unexpected properties for acoustics, including incredible resistance against defects and curves.
Proteins exhibit surprising electrical conductivity when connected to electrodes via specific molecules, paving the way for sensitive chemical sensors. The study identifies six proteins capable of conductance, with two specific contacts resulting in highest conductivity.
A precise definition of a black hole's singularity proves elusive, with diverse definitions among physicists and different physical approaches to understanding the phenomenon.
A new scale of electronegativity has been developed, providing a more comprehensive and extensive definition that can predict the approximate charge distribution in different molecules and materials. The new definition averages the binding energy of valence electrons and offers an equation to describe the total energy of an atom.
Physicists from the University of Würzburg have successfully manipulated a molecule into two stable states by controlling its environment using an electrical field. This breakthrough could enable the creation of molecular switches for spintronics applications, a promising technology for future data processing.
Physicists at University of Warsaw propose infinite-dimensional symmetry that unifies all four fundamental forces of nature. This scheme anticipates the existence of new particles with unusual properties, potentially present in our surroundings.
Two experiments at TU Wien and Heidelberg University demonstrate that disequilibrium processes in quantum systems belong to universality classes, behaving identically. This allows for indirect study of inaccessible quantum systems like the Big Bang.
Scientists at the University of Sussex have developed a method to reduce disruptive environmental effects on trapped ion quantum computers. The breakthrough enables the creation of large-scale quantum computers capable of solving complex problems, with potential applications in fields such as medicine, finance, and agriculture.
A study of Truncorotalia fossils found rapid shell shape changes 5.1 million years ago, potentially observing quantum evolution at a species level. This challenges previous theories of gradual evolution in planktonic forams.
Researchers at the University of Würzburg and the Technion have successfully built a topological insulator operating with dual excitations, offering a novel platform for switched electronic systems and laser applications. The discovery showcases the potential of this material for advanced optoelectronic devices.
Scientists at Vanderbilt University have developed a method to predict the outcomes of various additive combinations used to extract more oil from wells. By using quantum mechanical simulations and experimentation, they found that calcium, magnesium, and sulfates can enhance oil recovery by modifying the surface charge on calcite.
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.
A £5.5m partnership will study and develop quantum software for modelling and simulation, helping to establish a UK quantum software industry. Scientists hope to discover new materials and chemicals through this work, impacting sectors like energy and healthcare.
A thought experiment by Renato Renner and Daniela Frauchiger reveals a paradoxical situation where indirect observation of a quantum mechanical object yields the opposite result of direct observation. The calculation shows that precisely this is not the case, creating a conundrum. While colleagues have proposed various solutions, none ...
A tiny camera lens invented by ANU researchers may enable fast and reliable transfer of quantum information between quantum computers and an optical fibre network. The device uses a metasurface that controls light with functionalities outperforming traditional systems.
Researchers at Penn State successfully organized atoms in a lattice to lower entropy, which could aid in creating a quantum computer. This achievement uses uncharged atoms as qubits, enabling multiple states simultaneously and making computation more efficient.
Researchers at Swansea University's CERN project have improved the synthesis of antihydrogen and accumulated the anti-atoms for greater experimentation scope. This achievement allows for greater control and manipulation of ultra-cold anti-atom properties.
Researchers designed a computer simulation that added correlated noise to the path of energy transfer, significantly accelerating it. This finding challenges traditional views of noise as a hindrance in energy transport, opening up new possibilities for optimizing energy efficiency.
Researchers at KIT have developed the world's smallest transistor that can switch electrical current with a single atom in a solid electrolyte. The single-atom transistor consumes very little energy and operates at room temperature.
A revised roadmap outlines the current status of quantum technology, examining its challenges and goals. The roadmap identifies key areas of focus, including quantum communication, computing, simulation, metrology, and control.
Researchers at Ohio State University have calculated that the probability of an electron burning up in a black hole is negligible. The study challenges the firewall argument, which suggested a ring of fire around black holes, and instead supports the fuzzball theory, which describes black holes as giant balls of yarn.
Scientists from JGU and the University of Kaiserslautern have developed a process to apply a thin magnetic layer to steel, allowing for the detection of microstructural changes by changes in magnetic effects. This method has the advantage of detecting signs of fatigue much earlier than conventional testing procedures.
Colorado State University researchers will use a new grant to create nanoscale spin waves with uncommonly short wavelengths, enabling unprecedented control of electron spins. A tabletop soft X-ray microscope will be developed to study these waves, laying the groundwork for low-power storage and quantum computing applications.
Researchers found that quantum models can entirely mitigate the memory overhead required to model data in reverse, outperforming classical models. This discovery has profound implications for our understanding of time and its arrow.
A new practical Quantum Random Number Generator (QRNG) has been developed, enabling secure communication and overcoming weaknesses of current encryption. This game-changing technology will revolutionize internet security, making attacks based on predicting 'random' events a thing of the past.
A team of physicists has measured a tiny time difference in the ejection of an electron from a molecule depending on its position. The researchers used attosecond laser pulses to study the photoelectric effect in carbon monoxide molecules, achieving precise measurements of the Wigner time delay and electron localization.
Researchers at the University of York have developed a quantum-based method to distribute secure information along communication lines, potentially preventing serious security breaches. By using a detector-independent design, they reduced vulnerabilities in current systems and enabled secure information exchange across the internet.
Physicists have identified a new state of matter in artificial spin ice that exhibits topological ordered phases, previously found only in quantum conditions. The material appears disordered but is actually ordered in a topological form.
The QUANTOX project aims to create a basic memory cell, Qubit, using topologically protected technology. The research team uses oxide interfaces with unique physical qualities to develop Quantum Topological systems that can be easily integrated within current technology.
Physicists have discovered a way to create complex structures called Rydberg polarons using ultracold strontium atoms, which can be assembled like Lego blocks. The findings reveal new insights into the basic nature of matter and challenge traditional chemistry laws.
Researchers propose a novel method to cool quantum devices by leveraging quantum interference, effectively cancelling heat flow and mitigating thermal noise. This innovative approach has the potential to significantly enhance the performance and stability of quantum computers.
Researchers at the University of Sydney have discovered a 'quantum hack' that improves quantum error correction by up to 400 percent, allowing for more efficient computations. This breakthrough could lead to fewer physical qubits required for basic calculations, making practical quantum computers a reality.
KAIST researchers designed metallic nanostructure substrates to enhance Quantum Dot LED efficiency and reduce production costs. The technology uses silver and aluminum nanoparticles to increase fluorescent properties of QDs, resulting in brighter displays and lower unit prices.
Physicists successfully cool a nanoelectronic chip to a temperature lower than 3 millikelvin using magnetic cooling. They also maintain these extremely low temperatures for seven hours, enabling various experiments close to absolute zero.
Excitonium is a condensate that defies reason, consisting of a boson formed by an escaped electron and a hole it left behind. Researchers at the University of Illinois used a novel technique to measure collective excitations and observed soft plasmon phase, providing definitive evidence for excitonium discovery.
Scientists at Max Planck Institute discovered robust Bain distortion in premartensite phase of Pt-substituted Ni2MnGa, which transforms to martensite with additional Bain distortion on further cooling. This phenomenon enhances applicability as magnetic actuators and refrigeration technology due to lower hysteresis.
Q-Ctrl, founded by University of Sydney's Professor Michael Biercuk, aims to provide trusted quantum control solutions for various industries. The company has attracted multimillion-dollar investments and is focused on reducing qubit errors to improve the performance of quantum devices.
Researchers at UC Riverside developed a photodetector that doubles its efficiency by combining two distinct materials, producing quantum mechanical processes. This breakthrough can revolutionize the way solar energy is collected.
Researchers at Florida State University found that the heaviest and rarest elements do not follow traditional rules of quantum mechanics. Instead, Albert Einstein's Theory of Relativity governs their behavior, revealing unusual chemistry patterns. The study sheds new light on these lesser-known elements.
Researchers have developed a new method to simulate infrared spectra using artificial neural networks, reducing simulation time from thousands of years to minutes. This breakthrough enables the analysis of complex chemical systems and paves the way for widespread adoption in various fields.
Researchers at Virginia Commonwealth University have discovered a stable tri-anion particle, made of boron and beryllium and cyanogen, which could be used in aluminum ion batteries. The discovery was recognized as a VIP paper by Angewandte Chemie and has potential applications in various industries.