technique
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Science
High-speed control technique enables record fidelity in superconducting qubits
In the artist’s impression of a recent MIT experiment, the sphere in the center represents a qubit, illuminated by two control signals: electric charge (blue) and magnetic flux (purple). These control signals are designed to combine to produce circularly polarized microwaves that are not affected by counter-rotation effects. The signals consist of repeating waveforms and represent the similarity of control…
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Physics
New electron microscopy technique reveals complex spin structures on femtosecond timescales
Melon pair spin vector. Unlike the rapidly oscillating electric and magnetic fields of the surface plasmon polariton that underlie this spin texture, the texture itself is temporally stable over the duration of the plasmon pulse. The horizontal separation of the two (red) maxima is approximately half the wavelength of the surface plasmon polariton (390 nm). Credit: P. Dreher et al.,…
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Nanotechnology
Periodic nano/microstructures can be printed on glass using a simple technique
PDMS-based tape test to evaluate the robustness of Ar plasma post-treatment patterns. a) Photographs of Ar plasma post-treatment patterns before and after robustness test. Bring the original PDMS slab into contact with the printed pattern and then peel it off. Repeat this cycle up to five times and observe the surface using a laser microscope immediately after each cycle. b)…
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Nanotechnology
New etching technique improves powder absorption for metal 3D printing
A team from Lawrence Livermore National Laboratory, Stanford University, and the University of Pennsylvania has introduced a new wet chemical etching process to modify the surface of traditional metal powders used in 3D printing. By creating nanoscale grooves and textures, the researchers reportedly increased the absorption rate of these powders by up to 70%, allowing for more effective energy transfer…
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Environment
A possible explanation for the ‘missing plastic problem’: New detection technique finds microplastics in coral skeletons
Various microplastics collected from corals off the coast of Koh Sichang in the Gulf of Thailand. As can be seen from their color, shape and size, the corals have ingested a variety of microplastics, many of which are thinner than a human hair. Photo courtesy of Kyushu University/Isobe Laboratory Researchers from Japan and Thailand investigating microplastics in corals have discovered…
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