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  • Quantum computers can solve...
    on March 18, 2024 at 6:49 PM

    The traveling salesman problem is considered a prime example of a combinatorial optimization problem. Now a Berlin team led by theoretical physicist Prof. Dr. Jens Eisert of Freie Universität Berlin and HZB has shown that a certain class of such problems can actually be solved better and much […]

  • Breakthrough in melting point...
    on March 18, 2024 at 4:51 PM

    A longstanding problem in physics has finally been cracked by Professor Kostya Trachenko of Queen Mary University of London's School of Physical and Chemical Sciences. His research, published in Physical Review E, unveils a general theory for predicting melting points, a fundamental property whose […]

  • Elegant use of noise for quantum...
    on March 18, 2024 at 3:40 PM

    Scientists around the world work hard to rinse quantum systems for noise, which may disturb the function of tomorrow's powerful quantum computers. Researchers from the Niels Bohr Institute (NBI) have found a way to use noise to process quantum information. This raises the performance of the quantum […]

  • Searching for the decay of nature's...
    on March 18, 2024 at 3:09 PM

    Tantalum is one of the rarest elements and has multiple stable isotopes. The least abundant tantalum isotope, Ta-180 is found naturally in a long-lived excited state, a feature unique to this isotope. In excited states, a nuclei's protons or neutrons have higher than normal energy levels.

  • Exotic molecules embedded into...
    on March 14, 2024 at 1:59 PM

    Researchers have unveiled the extraordinary behavior of weakly-bound three-atomic molecules, defying conventional understanding of quantum mechanics. In a study recently published in Nature Communications, a team of scientists from Bar-Ilan University in Israel, in collaboration with theoreticians […]

  • A theory linking ignition with flame...
    on March 14, 2024 at 1:25 PM

    In a study published on January 18, 2024 in the journal Physics of Fluids, researchers from Tohoku University theoretically linked ignition and deflagration in a combustion system, unlocking new configurations for stable, efficient combustion engines due to the possible existence of any number of […]

  • Quantum dance to the beat of a drum:...
    on March 14, 2024 at 10:00 AM

    Physicists at the University of Regensburg have choreographed the shift of a quantized electronic energy level with atomic oscillations faster than a trillionth of a second.

  • Researchers achieve quantum key...
    on March 13, 2024 at 8:41 PM

    Researchers at the Department of Energy's Oak Ridge National Laboratory have demonstrated that advanced quantum-based cybersecurity can be realized in a deployed fiber link.

  • A new ion trap for larger quantum...
    on March 13, 2024 at 7:43 PM

    Researchers at ETH have managed to trap ions using static electric and magnetic fields and to perform quantum operations on them. In the future, such traps could be used to realize quantum computers with far more quantum bits than have been possible up to now.

  • AI for astrophysics: Algorithms help...
    on March 13, 2024 at 2:24 PM

    The origin of heavy elements in our universe is theorized to be the result of neutron star collisions, which produce conditions hot and dense enough for free neutrons to merge with atomic nuclei and form new elements in a split-second window of time. Testing this theory and answering other […]

  • Exploring exotic behaviors in...
    on March 12, 2024 at 4:52 PM

    Over the past 20 years, many physicists have studied ultra-cold fermionic systems contained in magnetic or optical traps. When an external magnetic field is applied to a two-species fermionic system, the particles can pair together to form composite "bosonic molecules" with a full-integer spin.

  • You didn't see it coming: New research...
    on March 12, 2024 at 3:11 PM

    We experience turbulence every day: a gust of wind, water gushing down a river, or mid-flight bumps on an airplane.

  • A 3D view into chaos: Researchers...
    on March 11, 2024 at 8:36 PM

    Experiments with liquid metals could not only lead to exciting insights into geophysical and astrophysical flow phenomena, such as atmospheric disturbances at the rim of the sun or the flow in the Earth's outer core, but also foster industrial applications, for example, the casting of liquid steel.

  • Preventing magnet meltdowns before they...
    on March 11, 2024 at 7:11 PM

    The particle accelerators that enable high-energy physics and serve many fields of science, such as materials, medical, and fusion research, are driven by superconducting magnets that are, to put it simply, quite finicky.

  • A project to build a new synchrotron in...
    on March 11, 2024 at 3:18 PM

    Researchers from the Universitat Politècnica de València (UPV), the Universidad Autónoma de México (UNAM), and the Centro Internacional de Física de Bogotá are working on a project to build a new synchrotron in the Greater Caribbean. The latest issue of Nature features an article on the […]

  • Quantum-mechanical 'molecules' spotted...
    on March 11, 2024 at 2:32 PM

    Electronic states that resemble molecules and are promising for use in future quantum computers have been created in superconducting circuits by physicists at RIKEN.

  • Pushing the boundary on ultralow...
    on March 8, 2024 at 5:43 PM

    A team of physicists has developed a method to detect gravity waves with such low frequencies that they could unlock the secrets behind the early phases of mergers between supermassive black holes, the heaviest objects in the universe.

  • Quantum imaging could create bright...
    on March 8, 2024 at 3:39 PM

    The unique properties of quantum physics could help solve a longstanding problem that prevents microscopes from producing sharper images at the smallest scales, researchers say.

  • Classifying quantum secrets: Pendulum...
    on March 7, 2024 at 5:22 PM

    A recent study conducted at Tel Aviv University has devised a large mechanical system that operates under dynamical rules akin to those found in quantum systems. The dynamics of quantum systems, composed of microscopic particles like atoms or electrons, are notoriously difficult, if not impossible, […]

  • Classifying quantum secrets: Pendulum...
    on March 7, 2024 at 5:22 PM

    A recent study conducted at Tel Aviv University has devised a large mechanical system that operates under dynamical rules akin to those found in quantum systems. The dynamics of quantum systems, composed of microscopic particles like atoms or electrons, are notoriously difficult, if not impossible, […]

  • Optically trapped quantum droplets of...
    on March 7, 2024 at 5:15 PM

    Condensed matter systems and photonic technologies are regularly used by researchers to create microscale platforms that can simulate the complex dynamics of many interacting quantum particles in a more accessible setting. Some examples include ultracold atomic ensembles in optical lattices, […]

  • Scientists propose new scheme for the...
    on March 7, 2024 at 5:10 PM

    A new study by researchers at Lanzhou University and Hubei University proposes a quantum battery (QB) charging scheme based on a rectangular hollow metal waveguide. This approach allows them to overcome environment-induced decoherence and charging distance limitations. The findings are published in […]

  • Dancing droplets' new spin on water...
    on March 7, 2024 at 3:59 PM

    A more efficient way to capture fresh water from the air could be inspired by a phenomenon of motion first glimpsed in bowls of breakfast cereal.

  • LHCb finds bottom quarks are more...
    on March 7, 2024 at 3:10 PM

    The team of physicists working on the LHCb Collaboration at CERN has found that bottom quarks are more likely to exist in baryons than mesons as the density of the environment in which they exist increases. In their paper published in Physical Review Letters, the group describes studying the […]

  • LHCb finds bottom quarks are more...
    on March 7, 2024 at 3:10 PM

    The team of physicists working on the LHCb Collaboration at CERN has found that bottom quarks are more likely to exist in baryons than mesons as the density of the environment in which they exist increases. In their paper published in Physical Review Letters, the group describes studying the […]

  • Beam balance designs could elucidate...
    on March 6, 2024 at 9:02 PM

    One of the greatest problems in modern physics is to reconcile the enormous difference between the energy carried by random fluctuations in the vacuum of space, and the dark energy driving the universe's expansion.

  • Designing a drone that uses adaptive...
    on March 6, 2024 at 5:47 PM

    The idea of objects seamlessly disappearing, not just in controlled laboratory environments but also in real-world scenarios, has long captured the popular imagination. This concept epitomizes the trajectory of human civilization, from primitive camouflage techniques to the sophisticated […]

  • Weird electron behavior gets even...
    on March 6, 2024 at 5:29 PM

    A research team led by the Paul Scherrer Institute has spectroscopically observed the fractionalization of electronic charge in an iron-based metallic ferromagnet. Experimental observation of the phenomenon is not only of fundamental importance. Since it appears in an alloy of common metals at […]

  • Photons that make quantum bits 'fly'...
    on March 6, 2024 at 4:47 PM

    Two physicists at the University of Konstanz are developing a method that could enable the stable exchange of information in quantum computers. In the leading role: photons that make quantum bits "fly."

  • New method measures the 3D position of...
    on March 5, 2024 at 5:01 PM

    For more than a decade it has been possible for physicists to accurately measure the location of individual atoms to a precision smaller than one-thousandth of a millimeter using a special type of microscope. However, this method has so far only provided the x and y coordinates. Information on the […]

  • Open quantum system shows universal...
    on March 5, 2024 at 2:32 PM

    Universal behavior is a central property of phase transitions, which can be seen, for example, in magnets that are no longer magnetic above a certain temperature. A team of researchers from Kaiserslautern, Berlin and Hainan, China, has succeeded for the first time in observing such universal […]

  • Shortcut to success: Toward fast and...
    on March 5, 2024 at 2:06 PM

    In work published in Physical Review Letters researchers at Osaka University's Institute of Scientific and Industrial Research (SANKEN) used "the shortcuts to the adiabaticity (STA)" method to greatly speed-up the adiabatic evolution of spin qubits. The spin flip fidelity after pulse optimization […]

  • Study shows that the ATLAS detector can...
    on March 5, 2024 at 12:30 PM

    High-energy neutrinos are extremely rare particles that have so far proved very difficult to detect. Fluxes of these rare particles were first detected by the IceCube Collaboration back in 2013.

  • Researchers find exception to...
    on March 4, 2024 at 9:57 PM

    A team of researchers led by the University of Massachusetts Amherst has recently found an exception to the 200-year-old law, known as Fourier's Law, that governs how heat diffuses through solid materials.

  • LHCb observes a new decay mode of the...
    on March 4, 2024 at 6:27 PM

    The LHCb collaboration recently reported on the arXiv preprint server the first observation of the decay of the Bc+ meson (composed of two heavy quarks, b and c) into a J/ψ charm-anticharm quark bound state and a pair of pions, π+π0. The decay process shows a contribution from an intermediate […]

  • Multiparticle nanostructures for...
    on March 4, 2024 at 5:00 PM

    In Nature Physics, the LSU Quantum Photonics Group offers fresh insights into the fundamental traits of surface plasmons, challenging the existing understanding. Based on experimental and theoretical investigations conducted in Associate Professor Omar Magaña-Loaiza's laboratory, these novel […]

  • Correlation spectroscopy research shows...
    on March 4, 2024 at 2:41 PM

    Quantum sensor technology promises even more precise measurements of physical quantities. A team led by Christian Roos at the University of Innsbruck has now compared the signals of up to 91 quantum sensors with one another and thus successfully eliminated the noise caused by interactions with the […]

  • New maser in a 'shoebox' promises...
    on March 1, 2024 at 4:55 PM

    Researchers in Imperial College London's Department of Materials have developed a new portable maser that can fit the size of a shoebox.

  • Evidence of phonon chirality from...
    on March 1, 2024 at 12:20 PM

    The thermal hall effect (THE) is a physical phenomenon characterized by tiny transverse temperature differences occurring in a material when a thermal current passes through it and a perpendicular magnetic field is applied to it. This effect has been observed in a growing number of insulators, yet […]

  • Scientists make nanoparticles dance to...
    on March 1, 2024 at 10:00 AM

    The question of where the boundary between classical and quantum physics lies is one of the longest-standing pursuits of modern scientific research, and in new research published today, scientists demonstrate a novel platform that could help us find an answer.

  • Conduction-cooled accelerating cavity...
    on February 29, 2024 at 9:40 PM

    From televisions to X-ray machines, many modern technologies are enabled by electrons that have been juiced up by a particle accelerator. Now, the U.S. Department of Energy's Thomas Jefferson National Accelerator Facility has worked with General Atomics and other partners to unlock even more […]

  • Better neutron mirrors can reveal the...
    on February 29, 2024 at 3:34 PM

    Improved neutron mirrors can increase the efficiency of material analysis in neutron sources such as the European Spallation Source. The improved mirror has been developed by researchers at Linköping University by coating a silicon plate with extremely thin layers of iron and silicon mixed with […]

  • When the music changes, so does the...
    on February 29, 2024 at 3:31 PM

    Playing a different soundtrack is, physically speaking, only a minute change of the vibration spectrum, yet its impact on a dance floor is dramatic. People long for this tiny trigger, and as a salsa changes to a tango completely different collective patterns emerge.

  • Resonant tunneling: A possible way to...
    on February 29, 2024 at 3:07 PM

    A research team led by Prof. Dr. Yang Yong from the Hefei Institutes of Physical Science of the Chinese Academy of Sciences has revealed a remarkable quantum tunneling phenomenon across double potential barriers. They found that quantum tunneling is dominant at low temperatures and continues to […]

  • A promising leap towards computers with...
    on February 28, 2024 at 3:17 PM

    Scientists have created a reprogrammable light-based processor, a world-first, that they say could usher in a new era of quantum computing and communication.

  • Researchers discover tunable...
    on February 28, 2024 at 1:27 PM

    A research team from the Helmholtz-Zentrum Dresden-Rossendorf (HZDR) and the University of Salerno in Italy has discovered that thin films of elemental bismuth exhibit the so-called non-linear Hall effect, which could be applied in technologies for the controlled use of terahertz high-frequency […]

  • Study provides new insights into proton...
    on February 28, 2024 at 1:07 PM

    A study led by Prof. Chen Xurong at the Institute of Modern Physics (IMP) of the Chinese Academy of Sciences (CAS) has provided new insights into the origins of proton mass. From an experimental standpoint, the researchers suggested that the influence of heavy quarks on proton mass could be bigger […]

  • Trapping and excitation of the simplest...
    on February 27, 2024 at 2:58 PM

    The simplest possible molecule H2+ was one of the very first molecules to form in the cosmos. This makes it significant for astrophysics, but also an important object of research for fundamental physics. However, it is difficult to study in experiments.

  • Researchers offer theoretical...
    on February 27, 2024 at 11:30 AM

    Topological wave structures are wave patterns that exhibit specific topological properties, or in other words, properties that remain unvaried under smooth deformations of a physical system. These structures, such as vortices and skyrmions, have attracted significant attention within the physics […]

  • Novel theory-based evaluation gives a...
    on February 26, 2024 at 8:24 PM

    Most of the energy from the sun and other stars comes from a chain of nuclear fusion reactions. The end of this chain is marked by the fusion of protons with beryllium-7 to form boron-8. This process is key in determining the flow of high-energy solar neutrinos that reach the Earth.

  • A new theoretical development clarifies...
    on February 26, 2024 at 8:00 PM

    There is no doubt that water is significant. Without it, life would never have begun, let alone continue today—not to mention its role in the environment itself, with oceans covering over 70% of Earth.

  • Laser-focused look at spinning...
    on February 26, 2024 at 7:02 PM

    Scientists are getting a more detailed look than ever before at the electrons they use in precision experiments.

  • Resurrecting niobium for quantum science
    on February 26, 2024 at 5:53 PM

    For years, niobium was considered an underperformer when it came to superconducting qubits. Now, scientists supported by Q-NEXT have found a way to engineer a high-performing niobium-based qubit and take advantage of niobium's superior qualities.

  • Unlocking the secrets of the universe:...
    on February 26, 2024 at 5:32 PM

    A groundbreaking body of work led by Monash University physicists has opened a new pathway for understanding the universe's fundamental physics.

  • A machine learning predictor enhances...
    on February 26, 2024 at 4:12 PM

    In a recent development at Fudan University, a team of applied mathematicians and AI scientists has unveiled a cutting-edge machine learning framework designed to revolutionize the understanding and prediction of Hamiltonian systems. The paper is published in the journal Physical Review Research.

  • Measuring the properties of light:...
    on February 26, 2024 at 4:04 PM

    Scientists at Paderborn University have used a new method to determine the characteristics of optical quantum states. For the first time, they are using certain photon detectors—devices that can detect individual light particles—for so-called homodyne detection.

  • Accelerator-on-a-chip advance steers...
    on February 26, 2024 at 3:52 PM

    Stanford researchers are getting closer to building a tiny electron accelerator based on "accelerator-on-a-chip" technology with broad potential applications in studying physics as well as medical and industrial uses.

  • Super strong magnetic fields leave...
    on February 23, 2024 at 4:55 PM

    A new analysis by the STAR collaboration at the Relativistic Heavy Ion Collider (RHIC), a particle collider at the U.S. Department of Energy's (DOE) Brookhaven National Laboratory, provides the first direct evidence of the imprint left by what may be the universe's most powerful magnetic fields on […]

  • How to track important changes in a...
    on February 23, 2024 at 2:29 PM

    Networks can represent changing systems, like the spread of an epidemic or the growth of groups in a population of people. But the structure of these networks can change, too, as links appear or vanish over time. To better understand these changes, researchers often study a series of static […]

  • Experiment paves the way for new set of...
    on February 22, 2024 at 5:40 PM

    AEgIS is one of several experiments at CERN's Antimatter Factory producing and studying antihydrogen atoms with the goal of testing with high precision whether antimatter and matter fall to Earth in the same way.