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Category Archives: APS Physics
A Very Stable Mirror
A crystalline mirror coating significantly reduces fluctuations in the resonant frequency of an optical cavity. Continue reading
X-Ray–Optical Technique Detects Subtle Signal
A high-sensitivity measurement reveals the asymmetric shifts of electrons along atomic bonds. Continue reading
Posted in APS Physics
Tagged APS Physics, Atomic and Molecular Physics, Materials Sciences, Optics
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Spectroscopy Technique Reveals Nanoscale Acoustic Waves
Imaging using extreme ultraviolet scattering shows that optical pulses can generate surface excitations with spectra that were previously difficult to achieve. Continue reading
Posted in APS Physics
Tagged APS Physics, Lasers, Materials Sciences, Optics, Spectroscopy
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Measuring the Sun’s Opacity
Experiments with oxygen plasma at extreme densities and temperatures give new transparency to our picture of the Sun’s interior. Continue reading
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
Trapping Tiny Objects with Sound
Fluid flow and acoustic waves act together to trap nanoparticles. Continue reading
Charge Transfer Happens Too Fast to See
A new experiment on static electricity casts doubt on previous ones. Continue reading
Experiments Refute Dark Matter Claim
Two direct-detection experiments see no evidence of a signal reported by their predecessor. Continue reading
Posted in APS Physics
Tagged APS Physics, Astrophysics, Dark matter, Particle Physics
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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
Posted in APS Physics
Tagged APS Physics, Materials Sciences, Plasma physics, Soft matter
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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
Posted in APS Physics
Tagged APS Physics, Atomic and Molecular Physics, Optics, Quantum Physics
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Rachel Berkowitz 