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American Physical Society: Physics

  • newViewpoint: Equilibration in Quantum Systems

    Viewpoint: Equilibration in Quantum Systems

    Author(s): Sebastian DeffnerTwo research groups show that specific contributions to entropy may be the key to understanding how and when quantum systems equilibrate.[Physics 12, 123] Published Wed Nov 13, 2019
    - 13 hours ago, 13 Nov 19, 5:00am -
  • newSynopsis: Simulations Unravel Fibers’ Twisted Topology

    Synopsis: Simulations Unravel Fibers’ Twisted Topology

    How an elastic filament deforms under stress has been quantified in simulations, with implications for the design of artificial muscles.[Physics] Published Wed Nov 13, 2019
    - 13 hours ago, 13 Nov 19, 5:00am -
  • Synopsis: A New Negative Ion Takes the Cooling Spotlight

    Synopsis: A New Negative Ion Takes the Cooling Spotlight

    Measurements of the electron binding energy in the negative thorium ion suggest that it may be a good candidate for laser cooling.[Physics] Published Tue Nov 12, 2019
    - 2 days ago, 12 Nov 19, 5:00am -
  • Viewpoint: Soft Metal Gains Hulk-Like Strength

    Viewpoint: Soft Metal Gains Hulk-Like Strength

    Author(s): Arianna E. GleasonWhen rapidly compressed to planetary-core pressures, lead—a soft metal—becomes 10 times stronger than high-grade steel.[Physics 12, 125] Published Mon Nov 11, 2019
    - 3 days ago, 11 Nov 19, 5:00am -
  • Focus: Filtering Atoms by Their Spin

    Focus: Filtering Atoms by Their Spin

    Author(s): Matteo RiniA spin filter for cold atoms might be used as a testbed for spintronic devices and for searches for Majorana fermions.  [Physics 12, 124] Published Fri Nov 08, 2019
    - 6 days ago, 8 Nov 19, 5:00am -
  • Synopsis: Squeezing an Electron Crystal

    Synopsis: Squeezing an Electron Crystal

    Researchers have determined the energy required to add an electron to a Wigner crystal—an ordered crystalline state made of electrons rather than atoms.[Physics] Published Thu Nov 07, 2019
    - 7 days ago, 7 Nov 19, 5:00am -
  • Synopsis: Noisy Synchrotron? Machine Learning Has the Answer

    Synopsis: Noisy Synchrotron? Machine Learning Has the Answer

    Machine-learning algorithms could allow researchers to substantially reduce unwanted fluctuations in the widths of the electron beams produced at synchrotrons.[Physics] Published Wed Nov 06, 2019
    - 8 days ago, 6 Nov 19, 5:00am -
  • Synopsis: A Biological Cell As a Chemical Sensor

    Synopsis: A Biological Cell As a Chemical Sensor

    A new theoretical model predicts a fundamental limit to how finely attuned a cell can be to its biochemical surroundings.[Physics] Published Tue Nov 05, 2019
    - 9 days ago, 5 Nov 19, 5:00am -
  • Editorial: Postcards from Abroad

    Editorial: Postcards from Abroad

    A new series of articles will look at how history, culture, and current events are shaping physics in different countries.[Physics 12, 121] Published Mon Nov 04, 2019
    - 10 days ago, 4 Nov 19, 5:00am -
  • Feature: Open Mic for Vietnamese Physicists

    Feature: Open Mic for Vietnamese Physicists

    Physics asked a number of scientists from Vietnam about their thoughts on physics in their home country.[Physics 12, 122] Published Mon Nov 04, 2019
    - 10 days ago, 4 Nov 19, 5:00am -

Nature: Physics

  • Thermodynamic uncertainty relations constrain non-equilibrium fluctuations

    Thermodynamic uncertainty relations constrain non-equilibrium fluctuations

    Nature Physics, Published online: 11 November 2019; doi:10.1038/s41567-019-0702-6A new class of inequalities known as thermodynamic uncertainty relations provides quantitative tools for the description of physical systems out of equilibrium. A perspe…
    - 3 days ago, 10 Nov 19, 7:00pm -
  • Light-induced charge density wave in LaTe<sub>3</sub>

    Light-induced charge density wave in LaTe<sub>3</sub>

    Nature Physics, Published online: 11 November 2019; doi:10.1038/s41567-019-0705-3Short pulses of light shift the balance between two competing charge density wave phases, allowing the weaker one to manifest transiently while suppressing the stronger…
    - 3 days ago, 10 Nov 19, 7:00pm -
  • Cooling with imaginary time

    Cooling with imaginary time

    Nature Physics, Published online: 11 November 2019; doi:10.1038/s41567-019-0709-zFinding ground states of given Hamiltonians is crucial for quantum simulation — a promising application of quantum computers. An algorithm now finds these states using…
    - 3 days ago, 10 Nov 19, 7:00pm -
  • Imaging emergent heavy Dirac fermions of a topological Kondo insulator

    Imaging emergent heavy Dirac fermions of a topological Kondo insulator

    Nature Physics, Published online: 11 November 2019; doi:10.1038/s41567-019-0700-8High-energy-resolution spectroscopic measurements performed on the Kondo insulator SmB6 reveal the presence of correlation-driven heavy surface states—the heavy Dirac…
    - 3 days ago, 10 Nov 19, 7:00pm -
  • Determining eigenstates and thermal states on a quantum computer using quantum imaginary time evolution

    Determining eigenstates and thermal states on a quantum computer using quantum imaginary time evolution

    Nature Physics, Published online: 11 November 2019; doi:10.1038/s41567-019-0704-4The quantum imaginary time evolution and Lanczos algorithms offer a resource-efficient way to compute ground or excited states of target Hamiltonians on quantum computer…
    - 3 days ago, 10 Nov 19, 7:00pm -
  • The energy cost and optimal design for synchronization of coupled molecular oscillators

    The energy cost and optimal design for synchronization of coupled molecular oscillators

    Nature Physics, Published online: 11 November 2019; doi:10.1038/s41567-019-0701-7The energy cost for the synchronization of biochemical oscillators is determined under general conditions. This framework reveals a relationship between the KaiC ATPase…
    - 3 days ago, 10 Nov 19, 7:00pm -
  • Leibniz’s principle of indistinguishability

    Leibniz’s principle of indistinguishability

    Nature Physics, Published online: 04 November 2019; doi:10.1038/s41567-019-0711-5Leibniz’s principle of indistinguishability
    - 10 days ago, 3 Nov 19, 7:00pm -
  • Order! Order!!

    Order! Order!!

    Nature Physics, Published online: 04 November 2019; doi:10.1038/s41567-019-0714-2The ferromagnetism of iron has been known for millennia. Now a rotational form of spontaneous crystallographic ordering has been discovered. This touches upon fundamenta…
    - 10 days ago, 3 Nov 19, 7:00pm -

Phys.org: Physics News

  • newCould the mysteries of antimatter and dark matter be linked?

    Could the mysteries of antimatter and dark matter be linked?

    Could the profound mysteries of antimatter and dark matter be linked? Thinking that they might be, scientists from the international BASE collaboration, led by Stefan Ulmer of the RIKEN Cluster for Pioneering Research, and collaborators have performe…
    - 5 hours ago, 13 Nov 19, 1:00pm -
  • newResearchers capture moving object with ghost imaging

    Researchers capture moving object with ghost imaging

    Researchers have developed a way to capture moving objects with the unconventional imaging method known as ghost imaging. The new method could make the imaging technique practical for new applications such as biomedical imaging, security checks and v…
    - 6 hours ago, 13 Nov 19, 12:13pm -
  • newWhen bubbles bounce back

    When bubbles bounce back

    Collisions between bubbles or droplets suspended in liquid are more complex than previously thought. KAUST researchers have shown that conditions expected to promote coalescence can actually lead to the bubble or droplet pair bouncing right off of ea…
    - 8 hours ago, 13 Nov 19, 10:32am -
  • newFew-cycle pulses break the 300 W barrier

    Few-cycle pulses break the 300 W barrier

    A team led by researchers from the Max Born Institute for Nonlinear Optics and Short Pulse Spectroscopy (MBI), Laser-Laboratorium Göttingen (LLG) and Active Fiber Systems (AFS) has generated multi-millijoule 3-cycle pulses at 318 W average power lev…
    - 8 hours ago, 13 Nov 19, 10:32am -
  • newRapidly compressing lead to planetary-core type pressures found to make it stronger than steel

    Rapidly compressing lead to planetary-core type pressures found to make it stronger than steel

    A combined team of researchers from Lawrence Livermore National Laboratory in the U.S. and Atomic Weapons Establishment in the U.K. has found that rapidly compressing lead to planetary-core type pressures makes it stronger than steel. In their paper…
    - 8 hours ago, 13 Nov 19, 10:30am -
  • newFluid dynamics provides insight into wildfire behavior

    Fluid dynamics provides insight into wildfire behavior

    The Kincade Fire has been burning through Sonoma County, California, displacing people from their homes and leaving destruction in its wake. It is a stark reminder of the increasingly pressing need for a better understanding of how fires begin and sp…
    - 9 hours ago, 13 Nov 19, 9:20am -
  • newUnpacking the microstructure of stabilized oil-in-water emulsions using neutron scattering techniques

    Unpacking the microstructure of stabilized oil-in-water emulsions using neutron scattering techniques

    An international team led by New Zealand food scientists at the Riddet Institute has used neutron scattering techniques to characterize the structure of an oil-in-water emulsion commonly used in foods, such as milk, cream, salad dressings and sauces.
    - 11 hours ago, 13 Nov 19, 7:30am -
  • newA milestone in ultrashort-pulse laser oscillators

    A milestone in ultrashort-pulse laser oscillators

    With the demonstration of a sub-picosecond thin-disk laser oscillator delivering a record-high 350-watt average output power, physicists at ETH Zurich set a new benchmark and pave the path toward even more powerful lasers.
    - 11 hours ago, 13 Nov 19, 6:48am -
  • newEtalumis 'reverses' simulations to reveal new science

    Etalumis 'reverses' simulations to reveal new science

    Scientists have built simulations to help explain behavior in the real world, including modeling for disease transmission and prevention, autonomous vehicles, climate science, and in the search for the fundamental secrets of the universe. But how to…
    - 14 hours ago, 13 Nov 19, 3:51am -
  • newDeep learning expands study of nuclear waste remediation

    Deep learning expands study of nuclear waste remediation

    A research collaboration between Lawrence Berkeley National Laboratory (Berkeley Lab), Pacific Northwest National Laboratory (PNNL), Brown University, and NVIDIA has achieved exaflop performance on the Summit supercomputer with a deep learning applic…
    - 14 hours ago, 13 Nov 19, 3:47am -

Physics Today Magazine

  • Prep for chemistry PhD is as hard as for physics

    Prep for chemistry PhD is as hard as for physics

    Physics Today, Volume 72, Issue 11, Page 11-12, November 2019. <br/>
    - 13 days ago, 1 Nov 19, 3:00am -
  • A US physicist and the military draft

    A US physicist and the military draft

    Physics Today, Volume 72, Issue 11, Page 12-12, November 2019. <br/>
    - 13 days ago, 1 Nov 19, 3:00am -
  • An inexpensive crystal makes a fine quantum time machine

    An inexpensive crystal makes a fine quantum time machine

    Physics Today, Volume 72, Issue 11, Page 14-17, November 2019. <br/>To understand the intricacies of thermodynamics in the quantum regime, it helps to be able to turn back the clock.
    - 13 days ago, 1 Nov 19, 3:00am -
  • An odd fluid shows its inner workings

    An odd fluid shows its inner workings

    Physics Today, Volume 72, Issue 11, Page 17-19, November 2019. <br/>Viscous forces drive waves along a two-dimensional fluid’s free surface.
    - 13 days ago, 1 Nov 19, 3:00am -
  • Superconductivity is found in a nickel oxide

    Superconductivity is found in a nickel oxide

    Physics Today, Volume 72, Issue 11, Page 19-21, November 2019. <br/>A long-sought structural and electronic analogue of the cuprate superconductors has finally been synthesized.
    - 13 days ago, 1 Nov 19, 3:00am -
  • Trade wars and other geopolitical tensions strain US–China scientific collaborations

    Trade wars and other geopolitical tensions strain US–China scientific collaborations

    Physics Today, Volume 72, Issue 11, Page 22-26, November 2019. <br/>Researchers are increasingly on edge about collaborations that until recently were encouraged.
    - 13 days ago, 1 Nov 19, 3:00am -
  • Separating signal from noise to solve a nuclear puzzle

    Separating signal from noise to solve a nuclear puzzle

    Physics Today, Volume 72, Issue 11, Page 27-29, November 2019. <br/>Pacific Northwest National Laboratory develops radioisotope and particle detectors that can distinguish the production of medical isotopes from the testing of nuclear warheads.
    - 13 days ago, 1 Nov 19, 3:00am -
  • Vegetation pattern formation: The mechanisms behind the forms

    Vegetation pattern formation: The mechanisms behind the forms

    Physics Today, Volume 72, Issue 11, Page 30-36, November 2019. <br/>A simple principle relating growth to lateral water transport explains the variety of self-organized vegetation patchiness.
    - 13 days ago, 1 Nov 19, 3:00am -
  • The new science of novae

    The new science of novae

    Physics Today, Volume 72, Issue 11, Page 38-44, November 2019. <br/>The discovery of γ-ray emission from novae has been used not only to better understand sudden brightening events but also to answer some old questions and raise new ones.
    - 13 days ago, 1 Nov 19, 3:00am -
  • Paul Dirac and the Nobel Prize in Physics

    Paul Dirac and the Nobel Prize in Physics

    Physics Today, Volume 72, Issue 11, Page 46-52, November 2019. <br/>Despite the elegance of Paul Dirac’s theoretical work, the Nobel Committee nearly passed him over for the prize—until a timely experiment confirmed one of his predictions.
    - 13 days ago, 1 Nov 19, 3:00am -

physicsworld

Scientific American: Physics

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symmetry magazine

  • newHow do you make the world’s most powerful neutrino beam?

    How do you make the world’s most powerful neutrino beam?

    DUNE will need lots of neutrinos—and to make them, scientists and engineers will use extreme versions of some common sounding ingredients: magnets and pencil lead. What do you need to make the most intense beam of neutrinos in the world…
    - 2 hours ago, 13 Nov 19, 4:23pm -
  • Transitions into medical physics

    Transitions into medical physics

    Scientists who moved from particle physics or astrophysics to medical physics sit down with Symmetry to talk about life, science and career changes. “I wasn’t one of those people who grew up knowing that they wanted to be a scientist,…
    - 1 day ago, 12 Nov 19, 12:56pm -
  • How to share the data from LSST

    How to share the data from LSST

    The Large Synoptic Sky Survey will collect so much data that data scientists needed to figure out new ways for astronomers to access it. The most detailed three-dimensional maps of the universe so far came from the Sloan Digital Sky Surve…
    - 6 days ago, 7 Nov 19, 10:22am -
  • Put it to the test beam

    Put it to the test beam

    Before a detector component can head to its forever home, it has to pass the test. If building a modern particle physics experiment is a marathon, then visiting a test beam facility is the 100-meter dash. Over the course of just a few wee…
    - 8 days ago, 5 Nov 19, 4:33pm -
  • LHC music through the ColliderScope

    LHC music through the ColliderScope

    This summer, physicist Larry Lee had festival-goers dancing to the sounds of science. As Larry Lee walked around Slovakia’s largest annual music festival in July after playing his set, he got the typical rock star treatment. Fans recogn…
    - 13 days ago, 31 Oct 19, 1:35pm -
  • A budding strategy for large-scale science in Latin America

    A budding strategy for large-scale science in Latin America

    For the first time, scientists and policy-makers are creating a regional strategy for scientific projects in Latin America, starting with a focus on high-energy physics and cosmology. Earlier this year, scientists from around Latin Americ…
    - 15 days ago, 29 Oct 19, 12:27pm -
  • Hahn shot first

    Hahn shot first

    After 32 years as Fermilab’s staff photographer, Reidar Hahn is retiring—and saying farewell with a final collection of photos in Fermilab’s art gallery. If you have seen a photograph of Fermilab in the past three decades, odds are…
    - 16 days ago, 28 Oct 19, 2:23pm -
  • DESI opens its 5000 eyes

    DESI opens its 5000 eyes

    With installation near completion, the new sky-surveying instrument has begun final testing. A new instrument mounted atop a telescope in Arizona aimed its robotic array of 5000 fiber-optic “eyes” at the night sky on October 22 to cap…
    - 16 days ago, 28 Oct 19, 10:58am -
  • ARAPUCA: Let there be light traps

    ARAPUCA: Let there be light traps

    Latin American institutions are instrumental in creating photon detectors for the Deep Underground Neutrino Experiment. It started with a drive.Physicists Ana Machado and Ettore Segreto trundled their car along an Italian road, headed f…
    - 20 days ago, 24 Oct 19, 9:00am -
  • How Argentina joined ATLAS

    How Argentina joined ATLAS

    Maria Teresa Dova has been instrumental in bringing scientists in Argentina new opportunities to participate in particle physics and astrophysics experiments, including one that co-discovered the Higgs boson. After receiving her PhD in 19…
    - 21 days ago, 23 Oct 19, 9:00am -

The Guardian: Physics

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