This Week in Physics — How Metal Meteorites Magnetize

This Week in Physics Magazine — August 21, 2023 Research News How Metal Meteorites Magnetize August 15, 2023 For a metal meteorite to retain a magnetic field, its parent asteroid may need a cold rubble core to help drive an internal dynamo. Viewpoint Time-Reversal Symmetry and Thermodynamic Forces Hyun-Myung Chun – August 16, 2023 Dissipation affects the time asymmetry of fluctuations in systems out of thermodynamic equilibrium. A newly discovered inequality elucidates that connection. Research News Writing the Rules of Turbulence August 17, 2023 An experimentally derived equation of state captures a turbulent energy cascade in a far-from-equilibrium quantum gas. synopsis Supernovae Could Confess Neutrinos' Secrets August 15, 2023 A beyond-standard-model interaction between neutrinos could show up in future supernovae observations. synopsis Bigger Helium Nanodroplets without the Swirls August 16, 2023 Researchers have created vortex-free helium nanodroplets that contain more helium atoms than previous droplets of this type, allowing the system to be used in a wider range of studies. synopsis Pseudovortices Aid in Modeling the Synchronization Behavior of Neurons August 17, 2023 The dynamics of a collection of coupled neurons resemble that of vortices in a commonly studied two-dimensional lattice model, a finding that could help in understanding brain function and dysfunction. synopsis Milestone for Optical-Lattice Quantum Computer August 18, 2023 Quantum mechanically entangled groups of eight and ten ultracold atoms provide a critical demonstration for optical-lattice-based quantum processing. synopsis Global Quantum Communication via a Satellite Train August 18, 2023 Long-distance quantum communication can be achieved by directly sending light through space using a train of orbiting satellites that function as optical lenses. 1 Physics Ellipse, College Park, MD 20740 © 2023 American Physical Society | All rights reserved View Email Online You are receiving this message because you signed up to receive Physics Magazine email alerts or are a member of APS. Manage Email Preferences.

This Week in Physics — Mismatch with Standard-Model Predictions Reaches 5 Sigma

This Week in Physics Magazine — August 14, 2023 Research News Mismatch with Standard-Model Predictions Reaches 5 Sigma August 10, 2023 The Muon g-2 Collaboration has doubled the precision of their 2021 measurement of the muon's magnetic moment, strengthening a tension with predictions based on the standard model. Viewpoint Nuclear Fusion Heats Up Maria Gatu Johnson – August 14, 2023 The observation of self-heating in magnetically confined plasmas represents a milestone on the road to fusion reactors based on such plasmas. synopsis AI Learns to Play with a Slinky August 10, 2023 A new artificial intelligence algorithm can model the behavior of a set of objects, such as helical springs or pendulums, using a method that can extrapolate to objects that the algorithm hasn't previously analyzed. Video Self-Organized Zigzags from Fluid Flow August 11, 2023 A zigzag arrangement that appears spontaneously in a collection of magnetic particles and some other colloids is explained by the fluid flow around each particle. Research News Electricity Generated from Coils and Globules August 8, 2023 Researchers transform heat into useable electricity using a polymer phase transition, a behavior they say could be used to improve the energy efficiency of devices such as air conditioners. synopsis Quantum Deflection Unraveled August 8, 2023 Improved calculations of a quantum phenomenon called Delbrück scattering resolve a long-standing discrepancy between theory and experiment. synopsis Zap with Microwaves to Reverse Spin August 9, 2023 Irradiating a uniaxial magnetic system with a specific sequence of microwave pulses can induce in the system quantum oscillations that cause the material's spins to flip back and forth. 1 Physics Ellipse, College Park, MD 20740 © 2023 American Physical Society | All rights reserved View Email Online You are receiving this message because you signed up to receive Physics Magazine email alerts or are a member of APS. Manage Email Preferences.

This Week in Physics — The Cost of Sending a Bit Across a Living Cell

This Week in Physics Magazine — August 7, 2023 Viewpoint The Cost of Sending a Bit Across a Living Cell Artemy Kolchinsky – August 7, 2023 Calculations of the minimum energy a cell requires to transmit a signal between two internal components could help scientists understand how energy and information combine to produce living systems. synopsis Record-Breaking Detection of Solar Photons August 3, 2023 Measurements of the highest-energy radiation from the Sun ever seen highlight the need for better solar models. Research News Self-Healing Metal Observed August 3, 2023 Researchers observe a metal with self-healing nanocracks, which form when the material is subjected to a force and then retreat. Focus Radar Resolution Gets a Boost August 2, 2023 A low-frequency radar method with improved resolution could aid in the detection of landmines and archeological objects. synopsis Standard Model Stays Strong for Leptons August 2, 2023 New data from observations of B-meson decay again vindicate the standard model of particle physics. Video Magnetic Microdisks Don't Always Reciprocate August 4, 2023 A model system of floating disks can be tuned to execute a variety of behaviors by controlling the interactions between the disks. synopsis Knotted Networks Form Cellular Safety Nets August 4, 2023 Simulations show that the topology of biopolymer "tangles" controls how biological cells resist deformation. synopsis Watching a Quantum System Thermalize August 1, 2023 Atoms trapped in a one-dimensional optical lattice can mimic how—in a basic quantum field theory—massive particles reach, or fail to reach, thermal equilibrium. 1 Physics Ellipse, College Park, MD 20740 © 2023 American Physical Society | All rights reserved View Email Online You are receiving this message because you signed up to receive Physics Magazine email alerts or are a member of APS. Manage Email Preferences.