Articles tagged with Quantum Mechanics
Researchers used a classical computer and mathematical models to outperform a quantum computer on a task involving a two-dimensional quantum system of flipping magnets. The system displayed a behavior known as confinement, which had previously been seen only in one-dimensional systems.
Kuhn's 'landscape of consciousness' explores diverse theories of consciousness, including materialism, non-reductive physicalism, and quantum theories. The taxonomy is designed to examine their impact on ultimate questions like meaning, purpose, and value.
Researchers developed a machine learning model to predict dielectric function of materials, facilitating novel dielectric material development. The model speeds up calculations by using chemical bonds between atoms and achieving accuracy close to first-principle calculations.
A new benchmark, V-score, has been developed to tackle quantum many-body problems. The V-score combines energy and fluctuation data into a single number, making it easier to rank different methods based on accuracy.
Researchers propose excited states of neutrons could explain contradictory measurements of average lifetime. These states would have slightly higher energy and different lifetimes, resulting in significant discrepancies between measured results.
Researchers at the University of Colorado Boulder have developed a new quantum timekeeper that combines four different clocks into one, allowing for increased precision. The device uses entanglement to reduce uncertainty in its ticking, enabling it to beat benchmark standards for optical atomic clocks.
Researchers created SmartCADD, an AI-powered virtual tool combining quantum mechanics and Computer Assisted Drug Design techniques. The tool speeds up the screening of chemical compounds, significantly reducing drug discovery timelines and identifying promising HIV drug candidates.
Researchers at the University of Copenhagen's Quantum for Life Centre have developed a new mathematical recipe to make quantum simulators more scalable and efficient. This breakthrough could speed up the development of new medicines from years to months by predicting how molecules behave in the human body before laboratory trials.
Karen Jo Matsler, a UTA professor, is being honored for her extensive contributions to physics education and her efforts to support educators nationwide. Her Quantum for All initiative aims to integrate quantum concepts into high school science instruction, preparing students for careers in quantum technology.
Researchers at MIT developed a security protocol that leverages quantum mechanics to guarantee secure data transmission during deep-learning computations. The protocol encodes data into laser light, making it impossible for attackers to copy or intercept information without detection.
A recent study has lifted the veil of topological censorship by revealing a meandering conduction channel that can carry quantized bulk current. The researchers identified mechanisms that allow for tuning between qualitatively different microscopic implementations, challenging traditional theories.
A new quantum sensing approach using diamond nitrogen-vacancy (NV) centers captures real-time electrochemical evolution in battery electrodes. The study reveals non-uniform phase transformations and superparamagnetic behavior in Fe particles, providing new insights into material behavior and failure mechanisms.
Scientists have successfully produced a Majorana fermion, a theoretical particle first proposed in 1937, using quantum interference in a nano-scale electronic circuit. This breakthrough has significant implications for the development of topological quantum computers.
Researchers apply computational technique to understand the 'pseudogap', a long-standing puzzle in quantum physics with ties to superconductivity. The discovery helps scientists in their quest for room-temperature superconductivity, enabling lossless power transmission and faster MRI machines.
Researchers at JILA successfully engineered controllable systems that replicate the universe's most interesting phenomena by manipulating ultracold potassium-rubidium molecules using Floquet engineering. The technique produced two-axis twisting dynamics, generating entangled states for enhanced quantum sensing and precision measurements.
Researchers have developed big algebras, a new mathematical tool that connects abstract algebra and geometry, enabling unprecedented insights into symmetry groups. This breakthrough has the potential to strengthen the connection between quantum physics and number theory.
A new graduate program at Rice University aims to equip students with skills needed to serve as leaders in quantum technology innovation. The program will provide interdisciplinary training to 30 students, combining expertise from quantum physics, optics, and nanotechnology.
Researchers have introduced a novel particle encoding mechanism that addresses longstanding issues in particle identification, enabling precise digital representation of complex particles. This new method is adaptable for future discoveries and has the potential to unlock new frontiers in particle physics.
Researchers have successfully achieved spin squeezing in a more accessible way, enabling precise measurements with quantum-enhanced metrology. This breakthrough may lead to new portable sensors for biomedical imaging and atomic clocks.
MIT researchers have proposed a best-of-both-worlds approach to improve the speed of a 1994 quantum factoring algorithm while reducing memory requirements. The new algorithm is faster, requires fewer qubits, and has a higher tolerance to quantum noise.
Researchers create stable, multilayer structures using electric field modifications, opening up new possibilities for quantum technologies. The development paves the way for scalable and robust quantum devices with increased functionality.
Physicists have developed a method to directly measure qubit coherence loss as thermal dissipation in electrical circuits. This breakthrough allows researchers to better understand how their qubits decay and improve quantum computing technology.
Researchers at the University of Arizona developed a transmission electron microscope with attosecond temporal resolution, allowing scientists to observe electron motion in real-time. This breakthrough enables studies of ultrafast processes at the atomic level, paving the way for advancements in physics and chemistry.
Physicists at Purdue University have achieved a groundbreaking milestone in levitated optomechanics by observing the Berry phase of electron spins in nano-sized diamonds. By levitating and spinning these tiny diamonds at incredibly high speeds, they were able to study the effects of fast rotation on spin qubits.
The Technical University of Munich (TUM) has established a flagship partnership with Nanyang Technological University Singapore (NTU), expanding its global presence in the region. The partnership aims to tackle major challenges in Southeast Asia through collaboration on quantum sovereignty, artificial intelligence, and other key areas.
Two major projects led by INRS professors will develop scalable solid-state semiconductors for on-chip quantum communication and advance smart programmable photonics. The $7.4 million funding will support collaborations between academia and industry partners.
A team of physicists from Poland and Germany have successfully calculated the cross-section for Higgs boson production in gluon-gluon collisions. The calculations suggest that no new physics factors are present in the Higgs boson particle.
For the first time, researchers have measured quadrupolar nuclei using zero-field nuclear magnetic resonance (NMR) spectroscopy. This breakthrough enables precise analysis of molecular structures and spin interactions, with potential applications in medicine and materials science.
Researchers have developed a new method to determine the exchange energy of 2D materials, which reveals the stability of their ferromagnetic properties. The study shows that molybdenum disulfide exhibits highly stable ferromagnetism, only about 10 times smaller than in iron.
Researchers used neutron beams to test the Leggett-Garg inequality, a formula that challenges macroscopic realism. The results show that classical explanations are not possible, confirming quantum theory's strange properties.
Researchers at ETH Zurich have successfully manipulated quantum states of single electron spins using spin-polarized currents. This method, which bypasses traditional electromagnetic fields, has the potential to control quantum states with unprecedented precision and localizability.
A team of scientists led by Qimiao Si predicts the existence of flat electronic bands at the Fermi level, which could enhance electron interactions and create new quantum phases. These bands have the potential to enable new applications in quantum bits, qubits, and spintronics.
Researchers at Tohoku University have unveiled a groundbreaking discovery of a one-dimensional topological insulator (TI), a unique state of matter that differs from conventional metals, insulators, and semiconductors. This breakthrough has significant implications for the development of qubits and highly efficient solar cells.
UTA researchers found that sending material in advance and using Zoom features like chat, polling, and breakout rooms helped keep participants engaged. Short, relevant videos also proved effective in teaching complicated topics. The team recommends a structured approach with activities like icebreaker exercises to foster community enga...
Researchers developed a new method, Fourier Transform Noise Spectroscopy (FTNS), to analyze the noise affecting qubits, revealing its frequency spectrum. This approach handles various types of noise, including complex patterns, making it a more practical solution for widespread use.
Researchers have developed a flat lens made of tungsten disulphide with concentric rings that focuses light using diffraction, leveraging quantum effects to enhance its efficiency. The lens is half a millimeter wide and just 0.6 nanometres thick, making it the thinnest lens on Earth.
Researchers at JPMorgan Chase, Argonne National Laboratory and Quantinuum show a quantum algorithmic speedup for the QAOA algorithm on the Low Autocorrelation Binary Sequences problem. The team demonstrates a significant step towards reaching quantum advantage, laying the foundation for future impact in production.
Researchers created a topological quantum simulator device that operates at room temperature, allowing for the study of fundamental nature of matter and light. The device has the potential to support the development of more efficient lasers.
Researchers demonstrate a way to describe spin-boson systems and efficiently configure quantum devices in a desired state. Non-Gaussian states are used to retain powerful mathematical machinery while describing diverse quantum states.
Researchers at Washington University in St. Louis have developed a new technique to enhance quantum entanglement stability in qubits. This breakthrough addresses the challenges of maintaining coherence and reliability in quantum systems.
Researchers demonstrate novel method of boson sampling using ultracold atoms in a two-dimensional optical lattice, overcoming previous limitations in simulations and photon-based experiments. The achievement showcases the potential of quantum devices for performing non-classical computational tasks.
Researchers at the University of Basel and NCCR SPIN have successfully coupled two hole-spin qubits, enabling fast and precise controlled spin-flip operations. This achievement is a significant milestone in the quest for practical quantum computing, with millions of qubits on a single chip.
Researchers from the University of Portsmouth unveiled a quantum sensing scheme that enhances superresolution imaging techniques, circumventing traditional limitations like diffraction. The new technique achieves unprecedented levels of precision, paving the way for new high-precision sensing schemes.
Researchers at JILA and NIST propose a method to dampen atomic recoil using momentum-exchange interaction, allowing for more precise measurements in quantum sensing. By exchanging photons between atoms, the researchers create a collective absorption of energy, dispersing recoil among the entire population of particles.
Physicists have achieved a breakthrough by exciting thorium atomic nuclei with lasers for the first time, enabling precise tracking of their return to original energy states. This discovery has far-reaching implications for precision measurement techniques, including nuclear clocks and fundamental questions in physics.
Researchers analyzed genomes of 363 bird species and found significant variations in cryptochrome 4 gene, indicating adaptation to environmental conditions. This specialization could be related to magnetoreception in migratory birds.
Researchers from the University of Copenhagen have developed a new method for measuring time using superradiant atoms, which could improve precision in areas like GPS systems and space travel. The technique uses superradiance to read out atomic oscillations without heating up the atoms.
An international research team has demonstrated that electrons in naturally occurring double-layer graphene move like particles without any mass, similar to light. This discovery has the potential to develop tiny, energy-efficient transistors at a nanoscale.
Scientists create a small drum that stores data sent with light in its sonic vibrations, allowing for secure transmission over long distances. This innovation has the potential to revolutionize quantum computing and enable an internet with quantum speed and security.
Researchers at Princeton University have discovered a novel quantum effect termed “hybrid topology” in a crystalline material made of arsenic atoms. This finding combines two forms of topological quantum behavior—edge states and surface states, creating a new state of matter.
Physicists at Princeton University have successfully visualized the Wigner crystal, a quantum phase of matter composed of electron crystals. The team used a scanning tunneling microscope to directly image the crystal, confirming its properties and enabling further study.
Researchers pioneer technique to control polaritons, unlocking potential for next-generation materials and surpassing performance limitations of optical displays. The breakthrough enables stable generation of polariton particles with enhanced brightness and color control.
Researchers at Rice University and the University of Illinois Urbana-Champaign have found that chemical reactions can scramble quantum information, similar to black holes. This discovery could lead to new methods for controlling molecular behavior and improving the reliability of quantum computers.
Scientists have made significant breakthroughs in Quantum Key Distribution (QKD) technology, enabling secure data transfer over long distances. The new method uses Continuous Variable Quantum Key Distribution to distribute quantum-encrypted keys via fibre optic cables, paving the way for a quantum-secure internet infrastructure.
Researchers have made significant progress in generating photon pairs on chip through spontaneous four-wave mixing, enabling the creation of efficient quantum light sources. However, challenges remain, including low pair generation rates and collection efficiencies, which limit the performance of these sources.
Researchers at SLAC National Accelerator Laboratory propose detecting thermalized dark matter, which builds up on Earth's surface, using quantum sensors. The study suggests that superconducting quantum devices could be redesigned to detect low-energy galactic dark matter particles.
Researchers developed a new single-molecule transistor that utilizes quantum interference to switch electrons on and off. The device boasts high precision switching, stability, and improved subthreshold swing compared to existing transistors.
The Princeton Plasma Physics Laboratory has opened a new Quantum Diamond Lab to study plasma processes for creating diamond material with unique properties. Scientists aim to harness this material for quantum computing, secure communication, and precise measurements, enabling breakthroughs in fields like medicine and energy.
Researchers at Carnegie Mellon University have created a new machine learning model that can simulate reactive processes in diverse organic materials and conditions. The model, called ANI-1xnr, performs simulations with significantly less computing power and time than traditional quantum mechanics models.
Researchers discovered charge fractionalisation in an iron-based metallic ferromagnet using laser ARPES spectroscopy, revealing collective excitations and quasiparticles. The study challenges fundamental quantum mechanics by showing electrons can behave as independent entities with fractionally charged pockets.