Articles tagged with Experimental Physics
Researchers have built the most precise experiment yet to look for gravitational anomalies caused by dark energy, using a lattice atom interferometer that can hold atoms in place for up to 70 seconds. While no deviation from predicted theory was found, the improved precision opens up possibilities for probing gravity at the quantum level.
Researchers have discovered unusual transport phenomena in ultra-clean SrVO3 samples, contradicting long-standing scientific consensus. The study's findings challenge theoretical models of electron correlation effects and offer insights into the behavior of transparent metals.
Researchers used ultrafast terahertz Stark spectroscopy to characterize the molecular quantum states involved in the proton pump reaction of bacteriorhodopsin. The study reveals pronounced quantum state mixing in the early electronic and nuclear dynamics, supporting a picture of mixed excited-state characters.
Scientists have discovered unique periodic structures in manganese germanide that behave like magnetic monopoles and antimonopoles. The researchers studied the collective excitation modes of these structures, revealing a way to experimentally determine their spatial configuration.
The MOLLER experiment aims to make a precise measurement of the electron's weak charge, probing its interactions with other subatomic particles. This will provide a stringent test of the Standard Model, revealing valuable insights into fundamental forces.
A team of researchers successfully demonstrated the principles of gravity-mediated entanglement in a photonic quantum simulation. This breakthrough provides crucial insights into the nature of gravity and its interaction with quantum mechanics.
Researchers at Columbia University have successfully created a unique quantum state of matter called a Bose-Einstein Condensate (BEC) out of molecules. The breakthrough, achieved by cooling sodium-cesium molecules to just five nanoKelvin, has the potential to advance powerful quantum simulations and unlock new areas of research.
The Facility for Rare Isotope Beams' (FRIB) precision measurement program has verified the existence of a proton halo around aluminum-22. Researchers used a unique process to create and measure a high-energy beam of the isotope, achieving accurate mass measurements that confirm its rare properties.
Holly Szumila-Vance has won the prestigious 2024 Guido Altarelli Award – Experimental Physics for her outstanding contributions to investigations of color transparency and other nuclear manifestations of QCD. Her work revealed new details of how protons interact with the strong force inside matter, but did not observe color transparent...
A recent study combines experimental data with state-of-the-art calculations to reveal new details on the origins of proton spin. The research shows that gluons, which hold protons together, contribute significantly to the proton's spin, contradicting earlier findings.
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.
Physicists from TU Darmstadt propose a new approach to define and measure the time required for quantum tunneling. They suggest using Ramsey clocks, which utilize the oscillation of atoms to determine the elapsed time. The proposed method may correct previous experiments that observed particles moving faster than light during tunneling.
Physicists from Princeton University have discovered the microscopic basis of kinetic magnetism, a novel form of quantum magnetism. They directly imaged the unusual type of polaron that gives rise to this magnetism, using ultracold atoms in an artificial laser-built lattice.
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.
Scientists have developed a powerful tool to investigate molecular dynamics in real-time, tracing the evolution of gas-phase furan and uncovering its ring-opening dynamics. The technique, based on attosecond core-level spectroscopy, provides an extremely detailed picture of the relaxation process.
A new theory explains why one type of Mott insulator resists conducting electricity even with added electrons. The material's lattice structure interacts with trapped electronic charge to form bipolarons, acting as roadblocks for electron movement.
MIT physicists arrange dysprosium atoms as close as 50 nanometers apart, a limit previously set by the wavelength of light. This allows for enhanced magnetic forces, thermalization, and synchronized oscillations, opening new possibilities for studying quantum phenomena.
Researchers propose an experiment to test the quantum nature of gravity without relying on entanglement. By using massive harmonic oscillators, they aim to reveal the quantumness of gravity in a way that was previously challenging due to the difficulty in creating heavy mass states.
A new atomically-thin material has been discovered that can switch between an insulating and conducting state by controlling the number of electrons. This property makes it a promising candidate for use in electronic devices such as transistors.
Researchers at Penn State have made light effectively experience a magnetic field within a photonic crystal structure. This breakthrough could lead to more efficient lasers and other photonic technologies by increasing the interaction between light and matter.
Researchers at the Universiteit van Amsterdam triggered mini-earthquakes in a lab by applying a small seismic wave to a granular material. The study shows that these events can be understood using laboratory-scale frictional experiments, and its findings are relevant for understanding remote earthquake triggering in larger faults.
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.
The novel UV broadband spectrometer enables real-time analysis of air pollutants and their interaction with other gases and sunlight. It combines high spectral resolution, short measurement times, and large bandwidth, making it suitable for sensitive measurements and monitoring of gas concentrations.
A German-Chinese team at Goethe University Frankfurt has successfully visualized the temporal evolution of electron waves using the Kapitza-Dirac effect. The researchers measured the time-dependent interaction between free electrons and ultrashort laser pulses, opening up exciting applications in quantum physics.
Researchers at Caltech have demonstrated quantum Barkhausen noise, which is the collection of little magnets flipping in groups. This effect is caused by quantum tunneling and co-tunneling, leading to macroscopic changes in magnetization, even without classical effects.
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.
A team from the University of Copenhagen contributed to an Antarctic experiment studying neutrinos, which may hold the answer to whether gravity also exists at the quantum level. The study found no conclusive changes in neutrino properties, but the results do not exclude the possibility of quantum gravity.
Researchers from the Institute of Nuclear Physics propose using AI to reconstruct particle tracks, which will be crucial for experiments finding new physics. The proposed method uses a deep neural network trained on simulated data and achieves accurate results comparable to classical algorithms.
Researchers have developed a new method to visualize the quantum mechanical wave function of excitons in organic semiconductors. This understanding is essential for developing more efficient materials with organic semiconductors. The technique, known as photoemission exciton tomography, provides insights into the behavior of excitons i...
Researchers at Johannes Gutenberg Universitaet Mainz have demonstrated altermagnetic electronic band splitting associated with spin polarization in CrSb, a good conductor at room temperature. The magnitude of this splitting is extraordinary and promises electronic applications for altemagnets.
Ben-Gurion University scientists propose a unified theory that explains sand ripples on Mars and Earth, suggesting common causes despite different planetary environments. The research was conducted using wind tunnel experiments and reveals the possibility of similar patterns on Earth.
Physicists have developed a method to make quantum signals accessible again by analyzing simultaneous changes in states of multiple sensors. This approach enables precise measurement of magnetic field variations and distance between sensors, outperforming entanglement-based methods.
Researchers demonstrate a way to amplify interactions between particles to overcome environmental noise, enabling the study of entanglement in larger systems. This breakthrough holds promise for practical applications in sensor technology and environmental monitoring.
Researchers at Jefferson Lab shattered a nearly 30-year-old record for parallel spin measurement within an electron beam, achieving unprecedented precision. This achievement sets the stage for high-profile experiments that could lead to groundbreaking discoveries in physics.
Physicists at the University of Southampton successfully detect weak gravitational pull on microscopic particles using a new technique. The experiment, published in Science Advances, could pave the way to finding the elusive quantum gravity theory.
Researchers successfully conduct laboratory studies on whistler mode chorus emission using the RT-1 device, a magnetically levitated superconducting coil. The findings reveal that high-temperature electrons drive the generation of chorus emission, while increasing plasma density suppresses its occurrence.
Researchers use a new technique to isolate energetic electron motion in liquid water, providing a window into electronic structure on an attosecond timescale. This breakthrough resolves long-standing debates about X-ray signals in liquid water and opens up a new field of experimental physics.
Researchers have proved the existence of altermagnetism, a new type of magnetism that offers distinct advantages for next-generation magnetic memory technology. Altermagnets exhibit strong spin-dependent phenomena like ferromagnets while possessing zero net magnetization.
Scientists use a special microscope to break up the bond between electrons and holes in semiconductors, revealing that hole interactions determine charge transfer processes. The findings have implications for future computer and photovoltaic technologies.
Researchers have discovered a new state of matter characterized by chiral currents, generated by cooperative electron movement. This phenomenon has implications for the development of new electronic devices and technologies, including optoelectronics and quantum technologies.
Researchers at TU Dortmund University have developed a highly durable time crystal that outlasts previous experiments by tens of thousands of times. The team discovered a way to stabilize the crystal using nuclear spins, enabling it to maintain its periodic behavior for up to 40 minutes.
A team of researchers has identified the intrinsic interactions responsible for light-induced ferroelectricity in SrTiO3. By measuring fluctuations in atomic positions, they found that mid-infrared excitation suppresses certain lattice vibrations, leading to a more ordered dipolar structure.
Researchers at Rice University have discovered a new material that exhibits both quantum correlations and geometric frustration, resulting in a unique flat band structure. This finding provides empirical evidence of the effect in a 3D material and has implications for understanding exotic features in materials science.
A new control system optimizes predictive models with real-time observations, predicting fusion plasma behavior with high accuracy. This approach enables adaptive predictive control in uncertain conditions, laying the foundation for fusion reactor control.
The Paarl Africa Underground Laboratory (PAUL) will be a game-changer for universities in South Africa and its partners, offering benefits through new jobs and research opportunities. The laboratory will enable scientists to study dark matter and neutrinos in a radiation-free environment.
In a study, an international team of physicists demonstrated that maximum entanglement is present in the proton even when pomerons are involved. The research complements previous findings on maximal entanglement in proton collisions and shows its universality.
Researchers at Maynooth University and the University of Chicago discovered that molecular processes can perform complex calculations rivaling simple neural networks. The study used phase transitions to recognize subtle chemical combinations and build different structures in response.
A new experiment could test whether relatively large masses have a quantum nature, resolving the question of whether quantum mechanics works at a larger scale. The proposed experiment exploits the principle of measurement-induced collapse to observe changes in motion.
Researchers at Princeton University discovered a sudden change in quantum behavior while experimenting with a three-atom-thin insulator. The findings suggest the existence of unique quantum phase transitions that disobey established theories, promising to enhance our understanding of quantum physics and superconductivity.
Scientists have made significant progress in understanding ultrafast electron dynamics by tracking the motion of electrons released from zinc oxide crystals using laser pulses. The research team combined photoemission electron microscopy and attosecond physics technology to achieve temporal accuracy, enabling them to study the interact...
A Harvard University research team has demonstrated a new strategy for making and manipulating cuprate superconductors, clearing a path to engineering new forms of superconductivity. The team created a high-temperature, superconducting diode made out of thin cuprate crystals using a low-temperature device fabrication method.
Researchers have directly observed a magnetic analog of liquid crystal, known as the 'spin-nematic phase', in a quantum spin system. This discovery was made possible by advancements in synchrotron facility development and has significant implications for quantum computing and information technologies.
Researchers at MIT recreate a 'quantum bomb tester' using bouncing droplets, finding that the droplet's classical dynamics give rise to similar statistical behavior as predicted by quantum mechanics. The study bridges the gap between two realities, offering insight into quantum behavior from a local realist perspective.
The Particle Physics Project Prioritization Panel (P5) report recommends budget-conscious investments in high-energy physics research. The US government will support the Large Hadron Collider, Deep Underground Neutrino Experiment, CMB-S4, and IceCube-Gen2 facilities for transformative discoveries related to fundamental physics.
Researchers at Helmholtz-Zentrum Dresden-Rossendorf have identified a promising phenomenon where certain iron alloys can be magnetized using ultrashort laser pulses. The team has now expanded its findings to an iron-vanadium alloy, revealing a new class of materials with potential applications in spintronics and magnetic sensors.
The University of Rochester's Laboratory for Laser Energetics leads a new national research hub focused on advancing inertial fusion energy science and technology. The IFE-COLoR hub aims to overcome laser-plasma instabilities, a major obstacle in achieving efficient laser coupling for inertial confinement fusion.
Researchers at Helmholtz-Zentrum Dresden-Rossendorf have developed tiny electromagnets made of ultra-thin carbon, graphene, using terahertz pulses. The graphene discs briefly turned into strong magnets, with magnetic fields in the range of 0.5 Tesla, and showed promise for developing future magnetic switches and storage devices.
LMU researchers create a two-dimensional supercrystal that generates hydrogen from formic acid using sunlight, holding the world record for green hydrogen production. The material uses plasmonic nanostructures to concentrate solar energy and convert it into high-energy electrons.
Researchers at the University of Innsbruck have developed a new approach to study entanglement in quantum materials. By using a quantum simulator with 51 particles, they were able to extract information about the existing entanglement with drastically fewer measurements than previously thought possible.