Articles tagged with Quantum Electrodynamics
Physicists at the University of Utah have developed a new, streamlined system for generating orbital angular momentum in electrons, allowing for cheaper and more abundant materials. The innovation uses natural symmetry and vibrations of atoms to control electron momentum.
Giant superatoms combine two quantum-mechanical constructs to suppress decoherence and create entanglement, opening opportunities for scalable and reliable quantum systems. This breakthrough enables quantum information to be protected, controlled, and distributed in new ways.
Researchers at RIKEN Center for Emergent Matter Science have created a new superconducting thin film from iron telluride, suitable for quantum computing applications. The film's unique crystal structure, resulting from intentional misalignment of atomic layers, reduces lattice distortion and enables low-temperature superconductivity.
Scientists found that a thin layer of germanium-tin sandwiched between silicon-germanium-tin barriers enhances electronic charge mobility. This discovery could advance neuromorphic computing and quantum computers, as well as enable new control knobs for engineering material properties.
A team of international researchers has developed a way to strengthen magnetism in ultra-thin materials, which could lead to breakthroughs in quantum computing and advanced communication systems. By pairing these materials with topological insulators, they improved the magnets' strength and stability, even at higher temperatures.
Researchers have developed a new type of exotic quantum material that can maintain its quantum properties when exposed to external disturbances, paving the way for robust quantum computers. The breakthrough uses magnetism to create stability, making it an important step towards realising practical topological quantum computing.
KAIST and Mainz researchers have predicted a 3D magnon Hall effect, demonstrating the ability of magnons to move freely and complexly in 3D space. This breakthrough could lead to novel functionalities in next-generation computing structures.
Physicists at Max-Planck-Institut fur Kernphysik measured the g factor of highly charged boron-like tin ions with a precision level of 0.5 parts per billion. The result demonstrates potential for competitive determination of fine structure constant α, governing electromagnetic forces throughout the universe.
Researchers demonstrate how grape pairs can create strong localized magnetic field hotspots of microwaves used in quantum sensing applications. The study could help develop more compact and cost-effective quantum devices.
A team of researchers successfully demonstrated nonlinear Compton scattering using a multi-petawatt laser, producing ultra-bright gamma rays. The achievement offers new insights into high-energy electron-photon interactions without traditional particle accelerators.
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 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 successfully carried out high-precision x-ray spectroscopy on helium-like uranium, disentangling one-electron and two-electron quantum electrodynamics effects. The measurement achieves an accuracy of 37 parts per million, setting a new benchmark for QED in the strong field domain.
Researchers have developed a method to coherently tile multiple titanium:sapphire crystals together, breaking through the current 10-petawatt limit. This technology enables ultra-intense ultrashort lasers with high conversion efficiencies, stable energies, and broadband spectra.
Researchers at ETH Zurich detected a new type of ferromagnetism in an artificially produced material, where magnetic moments align due to kinetic energy minimization. The material exhibits ferromagnetic behavior when electrons form 'doublons' and spread out through quantum mechanical tunnelling.
A team from HZDR has developed proposals for an improved laser experiment designed to verify vacuum fluctuations, which could potentially provide clues to new laws in physics. The experiment involves manipulating the vacuum fluctuations with ultra-powerful laser flashes.
Researchers in China developed a new response theory to investigate light-matter interactions in semiconductor quantum dots-strongly coupled microwave photons. The new theory successfully simulated and interpreted signals in experiments on periodically driven QD-cavity hybrid systems.
An international team of scientists has successfully measured the electron spin in matter for the first time using kagome materials. The results could revolutionize the study of quantum materials, with potential applications in renewable energy, biomedicine, electronics, and quantum computing.
Researchers have modeled fractons, stationary quasiparticles, and found they are not visible even at absolute zero temperature due to quantum fluctuations. The team plans to develop a model to regulate these fluctuations, paving the way for experimental materials that could exhibit fractons.
A team of scientists has successfully verified strong-field quantum electrodynamics with exotic atoms, using muonic atoms to measure the energy spectrum of characteristic X-rays emitted from neon gas. The results demonstrate a significant step towards verifying fundamental physical laws under strong electric fields.
A Cornell astrophysicist explains how the Imaging X-ray Polarimetry Explorer (IXPE) satellite detected polarized X-rays from a magnetar, revealing 'photon metamorphosis' – a transformation of X-ray photons. The phenomenon is a natural consequence of quantum electrodynamics under strong magnetic field conditions.
A new mathematical theory developed by scientists at Rice University and Oxford University can predict the nature of motions in complex quantum systems. The theory applies to any sufficiently complex quantum system and may give insights into building better quantum computers, designing solar cells, or improving battery performance.
Researchers studying exotic atom muonium aim to detect deviations from the Standard Model, which could reveal new physics. By measuring energy levels with unprecedented precision, they may uncover evidence for additional particles or forces that explain the muon's misbehavior.
Researchers used a mega-electron-volt ultrafast electron diffraction instrument to study vanadium dioxide's insulator-metal transition. The 'stroboscopic camera' captured the hidden trajectory of atomic motion, showing two stages with non-linear atomic motions in the second stage, influenced by electron orbital forces.
Researchers at Australian National University create a new experimental technique to measure the potential energy of an atom with unprecedented sensitivity. They validated quantum electrodynamics (QED) theory by achieving a precision that surpasses previous methods.
Researchers at Purdue University have discovered a way to produce the long-sought effect of vacuum scattering into rainbows using novel materials and controlled magnetic fields. This breakthrough enables the study of fundamental quantum phenomena that were previously only observable in extreme environments, such as neutron stars.
An international team of researchers has demonstrated a technique to increase the intensity of lasers by compressing light pulses. This approach could enable the exploration of quantum electrodynamics phenomena at previously inaccessible intensities.
Researchers explore high-intensity lasers to create plasmas for studying quantum electrodynamics, a lesser-studied corner of particle physics. The findings could lead to advances in fundamental physics and scanning technology.
Researchers at Heidelberg University have successfully constructed the symmetries of quantum electrodynamics using ultracold atoms. The findings could lead to the development of large-scale quantum devices capable of simulating complex physical phenomena.
A team of researchers has demonstrated a proof-of-principle experimental demonstration on simulating molecular vibronic spectra using a 3D circuit quantum electrodynamics system. The simulator can model different molecules and obtain temporal correlation functions, electronic-vibronic coupling strength, and spectra of both equilibrium ...