• Ultracold quantum battery could be charged with quantum tunnelling

    Updated: 2024-08-30 16:00:52
    Atoms tunnelling through a quantum battery could charge it and also keep it from losing energy, which could give an advantage over conventional batteries

  • New Limits on Dark Matter

    Updated: 2024-08-30 09:11:22
    As it’s name suggests, dark matter is dark! That means it’s largely invisible to us and only detectable through its interaction with gravity. One of the leading theories to explain the stuff that makes up the majority of the matter in the Universe are WIMPs, Weakly Interacting Massive Particles. They are just theories though and … Continue reading "New Limits on Dark Matter" The post New Limits on Dark Matter appeared first on Universe Today.

  • Dark matter could be hiding inside strange failed stars

    Updated: 2024-08-29 23:00:07
    Brown dwarfs could be hiding dark matter inside their cores – if they are, there would be signs that could help us track it down

  • The Terrifying Power of Mathematics

    Updated: 2024-08-29 20:21:35
    Ted Jacobson has put on the arXiv a transcription of a 1947 Feynman letter about his efforts to better understand the Dirac equation, in order to find a path integral formulation of it. The letter also contains some fascinating comments … Continue reading →

  • How Demagnetization Drives Terahertz Emissions

    Updated: 2024-08-23 10:00:00
    Author(s): Rachel BerkowitzTheoretical work explains why terahertz radiation is emitted when a laser pulse demagnetizes a magnetic thin film.[Physics 17, s97] Published Fri Aug 23, 2024

  • Media Competition Drives Complex Social Dynamics

    Updated: 2024-08-22 10:00:00
    Author(s): Ryan WilkinsonA mathematical model suggests that social groups can behave in unexpected ways when subjected to competing mass media.[Physics 17, s96] Published Thu Aug 22, 2024

  • Photon “Sifter” Separates Single Photons from Multiphoton States

    Updated: 2024-08-21 10:00:00
    Author(s): David EhrensteinA device that sorts photon states could lead to a basic component of an all-optical quantum computer.[Physics 17, s105] Published Wed Aug 21, 2024

  • The Elegant Universe: 25th Anniversary Edition

    Updated: 2024-08-20 19:31:13
    Brian Greene’s The Elegant Universe is being reissued today, in a 25th anniversary edition. It’s the same text as the original, with the addition of a 5 page preface and a 36 page epilogue. The initial excitement among some theorists … Continue reading →

  • A Jamming Framework for Soft Granular Materials

    Updated: 2024-08-20 10:00:00
    Author(s): Marric StephensExperiments on soft granular materials have allowed researchers to derive a rheological description for these materials by extending an established framework valid for hard granular materials.[Physics 17, s100] Published Tue Aug 20, 2024

  • Gamma-Ray Burst Tightens Constraints on Quantum Gravity

    Updated: 2024-08-15 10:00:00
    Author(s): Marric StephensAn analysis of the brightest gamma-ray burst ever observed reveals no difference in the propagation speed of different frequencies of light—placing some of the tightest constraints on certain violations of general relativity.

  • Mapping the Textures of Thicker Magnets

    Updated: 2024-08-15 10:00:00
    Author(s): Rachel BerkowitzA soft x-ray magnetic imaging technique makes possible the study of a wide range of magnetic materials.[Physics 17, s89] Published Thu Aug 15, 2024

  • Gated Flows in Charged Channels

    Updated: 2024-08-14 10:00:00
    Author(s): Rachel BerkowitzElectrically patterning the walls of a nanochannel could provide a route to creating “valves” that abruptly alter the speed at which a charged fluid flows through a nanofluidic device.[Physics 17, s95] Published Wed Aug 14, 2024

  • Quantifying the Knottiness of a Tangled Network

    Updated: 2024-08-13 10:00:00
    Author(s): Charles DayA new mathematical measure of knottiness could help improve the transport efficiencies of subway and road systems, as well as other physical networks.[Physics 17, s94] Published Tue Aug 13, 2024

  • How Migration May Stabilize the Diversity of Ecosystems

    Updated: 2024-08-12 10:00:00
    Author(s): Tobias GallaA model based on statistical physics suggests that the combination of species migration and interspecies interactions may allow a complex ecological system to maintain its diversity.[Physics 17, 123] Published Mon Aug 12, 2024

  • Entangled Photons Maintained under New York Streets

    Updated: 2024-08-09 10:00:00
    Author(s): Charles DayA new scheme sends large numbers of entangled photons reliably through commercial fiber-optic cables, demonstrating a capability required for secure quantum networks.[Physics 17, 125] Published Fri Aug 09, 2024

  • Emergent Chirality in Active Rotation

    Updated: 2024-08-08 10:00:00
    Author(s): Charles DaySelf-organized spherical shells made up of a few hundred cells spontaneously rotate when embedded in a gel. New research explains why.[Physics 17, s102] Published Thu Aug 08, 2024

  • Superconducting Nanowires Enable Cooler Photon-Counting Electronics

    Updated: 2024-08-08 10:00:00
    Author(s): Susan CurtisHigh-resolution imaging arrays could be realized by using the same superconducting technology for both the signal-processing electronics and the single-photon detectors.[Physics 17, 124] Published Thu Aug 08, 2024

  • Susskind: String Theory is Not the Theory of the Real World

    Updated: 2024-08-07 22:00:36
    Lawrence Krauss has just put up a long interview with Lenny Susskind. I was listening to it while doing something else, found myself shocked when the discussion got to the current state of string theory to find that I mostly … Continue reading →

  • An Alternative Way to Make an Air Laser

    Updated: 2024-08-07 10:00:00
    Author(s): Charles DayA resonance between energy levels in argon atoms and nitrogen molecules could be used to remotely sense contaminants in air.[Physics 17, s88] Published Wed Aug 07, 2024

  • Electronic Bands Get a New Tuning Knob

    Updated: 2024-08-06 10:00:00
    Author(s): Ryan WilkinsonResearchers have used a specially crafted electric potential to manipulate the electronic band structure of graphene, laying the groundwork for on-demand electronic band design.[Physics 17, s92] Published Tue Aug 06, 2024

  • Visualizing Atom Currents in Optical Lattices

    Updated: 2024-08-05 10:00:00
    Author(s): Annabelle BohrdtA new manipulation technique could enable the realization of more versatile quantum simulators.[Physics 17, 120] Published Mon Aug 05, 2024

Current Feed Items | Previous Months Items

Jul 2024 | Jun 2024 | May 2024 | Apr 2024 | Mar 2024 | Feb 2024