Category Archives: APS Physics

Active Matter Gets Solid

Researchers have determined the mechanical properties of a tiny beam made of active particles, laying the groundwork for future micromachines. Continue reading

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Trapping Tiny Objects with Sound

Fluid flow and acoustic waves act together to trap nanoparticles. Continue reading

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Charge Transfer Happens Too Fast to See

A new experiment on static electricity casts doubt on previous ones. Continue reading

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Experiments Refute Dark Matter Claim

Two direct-detection experiments see no evidence of a signal reported by their predecessor. Continue reading

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Active Matter Breaks like an Amorphous Plastic

Shearing a dusty plasma with a laser shows how vibrational modes lead to weak points in an amorphous active system. Continue reading

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Ultracold Atoms Simulate Breaking Flux Strings

An optical-lattice experiment offers a platform for observing dynamics of particle–antiparticle pair creation in quantum field theories. Continue reading

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Salt Loss Dictates Sea-Ice Structure

Experiments on freezing saltwater have teased apart flow dynamics inside ice pores, offering a possible boost to climate models’ predictive power. Continue reading

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Quantum Computing Meets Finance

Eric Ghysels made a name for himself in financial econometrics and time-series analysis. Now he translates financial models into quantum algorithms. Continue reading

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Magnetic Topological Insulators Have an Edgy Side

Edge currents are observed in a magnetic topological insulator even when conventional theory says that they should not. Continue reading

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How a Sail Inverts Its Shape

Simulations explore how to optimize a sail for changing direction. Continue reading

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