• Where are All the Primordial Black Holes?

    Updated: 2024-05-30 18:37:32
    Skip to content Universe Today Space and astronomy news Menu Videos Newsletter Podcast Contact Us Support Us Log in This graphic shows how large-amplitude fluctions on small scales in the cosmic background background could result in primordial black holes . Courtesy : ESA Planck Collaboration Jason Kristiano . Posted on May 30, 2024 May 30, 2024 by Carolyn Collins Petersen Where are All the Primordial Black Holes The earliest black holes in the Universe called primordial black holes PBHs are strong contenders to help explain why the Universe is heavier than it looks . There’s only one problem : these miniature monsters haven’t exactly been observed —yet . But , when astronomers do find them , they might turn out to be part of the Universe’s dark matter . component Primordial black holes

  • Recipe for a One-Way Waveguide

    Updated: 2024-05-30 10:00:00
    Author(s): Martin Rodriguez-VegaExperiments and numerical simulations indicate that randomly replacing a few nonmagnetic components with magnetic ones in a photonic alloy induces backscattering-free light propagation along its edge.[Physics 17, s60] Published Thu May 30, 2024

  • Proton Effective Charge Depends on Neutron Population

    Updated: 2024-05-29 10:00:00
    Author(s): David EhrensteinExperiments comparing neutron-rich cadmium with previous data on a neutron-poor version prove that a key parameter in nuclear calculations depends on the neutron-to-proton ratio.[Physics 17, s65] Published Wed May 29, 2024

  • Thin Films of Topological Magnets for Thermoelectric Applications

    Updated: 2024-05-28 10:00:00
    Author(s): Marric StevensA thin film of a topological magnet displays a large thermoelectric effect that doesn’t require an applied magnetic field—a behavior that could lead to new energy-harvesting devices.[Physics 17, s66] Published Tue May 28, 2024

  • Classifying the Surface Magnetization of Antiferromagnets

    Updated: 2024-05-28 10:00:00
    Author(s): Sai MuGroup theory and first-principles calculations combine to predict which antiferromagnets have potentially useful net surface magnetization.[Physics 17, 88] Published Tue May 28, 2024

  • Time-Symmetric Motion Maximizes Energy Efficiency in Fluid

    Updated: 2024-05-24 10:00:00
    Author(s): Philip BallResearchers discovered a trick for dragging an object in a fluid with minimal effort, suggesting an optimal strategy for nanorobots.[Physics 17, 87] Published Fri May 24, 2024

  • Cosmic Strings’ Imprints in High-Frequency Gravitational Waves

    Updated: 2024-05-23 10:00:00
    Author(s): Matteo RiniSpacetime wrinkles known as cosmic strings, which might have formed in the early Universe, could be a dominant source of gravitational waves at ultrahigh frequencies, according to new calculations.[Physics 17, s62] Published Thu May 23, 2024

  • A Better Way to Charge a Quantum Battery

    Updated: 2024-05-22 10:00:00
    Author(s): Rachel BerkowitzCoupling the charger and battery to a common reservoir induces a direct flow of energy into the battery.[Physics 17, s58] Published Wed May 22, 2024

  • Careful Accounting Could Reveal the Dark Sector

    Updated: 2024-05-21 10:00:00
    Author(s): Marric StephensAn experiment at CERN seeks signs of dark matter by looking for missing energy and momentum in the debris of particle collisions.[Physics 17, s54] Published Tue May 21, 2024

  • Cloud Computing under the Cover of Quantum

    Updated: 2024-05-21 10:00:00
    Author(s): Michael SchirberA secure method for cloud-based quantum computing harnesses the power of quantum physics to keep data confidential.[Physics 17, 85] Published Tue May 21, 2024

  • How indefinite causality could lead us to a theory of quantum gravity

    Updated: 2024-05-20 17:00:00
    Experiments show that effect doesn’t always follow cause in the weird world of subatomic particles, offering fresh clues about the quantum origins of space-time

  • Informing Potential Remedies for Quasiparticle Poisoning

    Updated: 2024-05-20 10:00:00
    Author(s): Max Hays, Kyle Serniak, and William D. OliverMeasurements of the temperature distribution of quasiparticles in superconducting circuits reveal behavior that could inform strategies for mitigating quasiparticle-induced errors in superconducting qubits.[Physics 17, 82] Published Mon May 20, 2024

  • Measuring the First Moments of Crystallization

    Updated: 2024-05-17 10:00:00
    Author(s): Mark BuchananA new liquid-jet technology enabled researchers to test the theory for liquid freezing more stringently than was possible in previous experiments, but uncertainties remain.[Physics 17, 84] Published Fri May 17, 2024

  • Lanthanum Less Abundant Than Previously Thought

    Updated: 2024-05-17 10:00:00
    Author(s): Katherine WrightMeasurements related to the production of lanthanum in stars where elements are thought to form via the “i process” indicate that less of the element is produced than models predict.[Physics 17, 78] Published Fri May 17, 2024

  • Quantifying Uncertainties in Quantum Simulations

    Updated: 2024-05-15 10:00:00
    Author(s): Ryan WilkinsonA method for analyzing uncertainties in so-called analog quantum simulations could help scientists make precise predictions using these models.[Physics 17, s51] Published Wed May 15, 2024

  • Fine Control of Ultracold Polar Molecules

    Updated: 2024-05-13 10:00:00
    Author(s): Charles DayThe ability to store molecules in reconfigurable optical traps could allow researchers to harness the rich physics of molecules in quantum applications.[Physics 17, s50] Published Mon May 13, 2024

  • Cooper Pairs Pair Up in a Kagome Metal

    Updated: 2024-05-13 10:00:00
    Author(s): Jung Hoon HanIn its superconducting state, an exotic metal harbors charge carriers that appear to have 4 and 6 times the charge of a single electron, suggesting the formation of Cooper-pair “molecules.”[Physics 17, 80] Published Mon May 13, 2024

  • A Chiral Crystal’s Orbital Texture

    Updated: 2024-05-10 10:00:00
    Author(s): Charles DayX-ray experiments reveal that a semimetal exhibits “orbital texture”—an exotic electronic structure resulting in spin-dependent electron transport.[Physics 17, s53] Published Fri May 10, 2024

  • Making Neutron-Deficient Nuclei

    Updated: 2024-05-09 10:00:00
    Author(s): Charles DayAdding neutrinos to an existing nucleosynthesis recipe can account for the puzzling existence of neutron-deficient heavy nuclei.[Physics 17, s56] Published Thu May 09, 2024

  • Electron–Hole System Harbors Rich Phases

    Updated: 2024-05-08 10:00:00
    Author(s): Ryan WilkinsonResearchers predict that several exotic states of matter can exist in semiconductor structures hosting electrons in one layer and holes in another.[Physics 17, s49] Published Wed May 08, 2024

  • Filamentation Observed in Wakefield Acceleration

    Updated: 2024-05-07 10:00:00
    Author(s): Rachel BerkowitzA particle-beam-generating method—called wakefield acceleration—uses proton bunches, which can fragment into high-density filaments as a result of their interactions with plasma, new experiments show.[Physics 17, s48] Published Tue May 07, 2024

Current Feed Items | Previous Months Items

Apr 2024 | Mar 2024 | Feb 2024 | Jan 2024 | Dec 2023 | Nov 2023