Physics

Physicist Yichen Fu. Credit: Photo and collage by Elle Starkman/PPPL Office of Communications. An international team of scientists led by a graduate student at the U.S. Department of Energy’s (DOE) Princeton Plasma Physics Laboratory (PPPL) has demonstrated the use of Artificial Intelligence (AI), the same computing concept that will empower self-driving cars, to predict and
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Researchers connected three laboratories in a 100-kilometer region with an optical telecommunications fiber network stable enough to connect optical atomic clocks. Credit: Tomoya Akatsuka, Nippon Telegraph and Telephone Corporation An academic-industrial team in Japan has connected three laboratories in a 100-kilometer region with an optical telecommunications fiber network stable enough to remotely interrogate optical atomic
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Vorticity of flow in the turbulent reconnection region (X is along the reversing components of magnetic field, Y is perpendicular to the current layer). The measured spectrum corresponds to the expectations of the MHD turbulent theory. No plasmoids is seen for the 3D steady state magnetic reconnection. Credit: Lazarian et al, 2020 Solar flares, similar
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The researchers applied their new camera-based method for measuring building deformations to monitor very small movements of an adaptive building prototype frame 9 meters tall. Credit: Flavio Guerra, University of Stuttgart A new camera-based method for measuring building deformations can detect small displacements from 10 meters away. The method could be useful for continuously detecting
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If a gallium-arsenide crystal is irradiated with short laser pulses, charge carriers are formed. These charges are accelerated by applying a voltage which enforces the generation of a terahertz wave. Credit: HZDR/Juniks Terahertz waves are becoming ever more important in science and technology. They enable us to unravel the properties of future materials, test the
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Comparison between the experimental ARPES data and the simulated (DFT) surface spectral density, the sharp features with linear crossings at the point M correspond to surface states. Credit: National Centre of Competence in Research (NCCR) MARVEL Topological insulators (TIs) are bulk insulating materials that nonetheless exhibit metallic conductivity on their surfaces. This conductivity is guaranteed
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Structural characteristics of heteroepitaxy. (A) Schematic of BSTO and BTO systems. (B) Schematic of the epitaxial relationship. (C) Out-of-plane x-ray 2θ-θ scan of the heterostructure. a.u., arbitrary units. (D) Rocking curves of SRO(222), BTO(111), and AZO(002). (E) Φ-Scan of muscovite{202}, SRO{002}, BTO{002}, and AZO{101}. (F) Cross-sectional TEM image at the interface and the corresponding fast
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The spherical neutron polarimetry device features enhanced superconducting technology, coupled with an improved cooling system, adding new capabilities to US research by enabling the study of exotic magnetic phenomena in new dimensions. Credit: ORNL/Peter Jiang, Genevieve Martin Understanding magnetism at its most fundamental level is vital to developing more powerful electronics, but materials with more
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a. Schematic configuration; b. Optical microscope; c. SEM pictures; d. Cross-section of the present silicon-graphene hybrid plasmonic waveguide with the signal electrode at the middle and the ground electrodes at both sides (here the metal-graphene-metal sandwich structure is utilized); e. The electric field component distribution of the quasi-TE0 mode for the optimized silicon-graphene hybrid plasmonic
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An image depicting numerical simulations of the time dynamics of a one dimensional, periodically-driven, many-body classical system, coupled to a finite temperature bath. Space runs horizontally, while time runs down vertically. The image shows an initially uniform configuration (i.e. the top configuration, which is uniformly white) that eventually gives rise to period-doubled time-crystalline dynamics. Credit:
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Target area operator Bill Board removes a neutron imager snout from a diagnostic instrument manipulator. The NIF neutron imaging system produces an image of the source distribution of the primary neutrons produced by fusion reactions and the lower energy neutrons that are downscattered in energy by the compressed fuel in an ICF capsule. Credit: Lawrence
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In this two fluid flow simulation model, gray spheres represent solid media, while the wetting phase fluid and non-wetting phase fluid are shown in dark and light blue, respectively. Credit: Oak Ridge National Laboratory In 1922, English meteorologist Lewis Fry Richardson published Weather Prediction by Numerical Analysis. This influential work included a few pages devoted
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Copper/Niobium/NiobiumTin cavity connected to the cryocooler. Credit: US Department of Energy The building blocks of superconducting accelerators are superconducting radiofrequency (SRF) cavities made primarily from niobium that are combined in a vessel and bathed in liquid helium to reach superconducting temperatures. While a large liquid helium cryogenics plant may be practical for a major research
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Figure 1: Electrons (lilac) interact strongly with one another as they move through the NiO2 layer of a nickelate material, which could act as a model for high-temperature superconductivity (nickel = gray, oxygen = red). (Image produced by Mari Ishida of the RIKEN Center for Emergent Matter Science.). Credit: RIKEN Center for Emergent Matter Science
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A charged nitrogen molecule is interrogated by a charged calcium atom in an optical lattice. Credit: University of Basel, Department of Chemistry Researchers of the University of Basel have developed a new method with which individual isolated molecules can be studied precisely—without destroying the molecule or even influencing its quantum state. This highly sensitive technique
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Wavelength tunable μC UVOLEDs with asymmetric structural design. Credit: Prof. LIU’s group Ultraviolet organic light-emitting devices (UVOLEDs) are expected to develop into compact, environmentally friendly and large-size ultraviolet light source applications in analysis, information storage, display, biomedical, etc. However, most of the UV emitted organic materials have broad emission spectra, and thus the electroluminescence (EL)
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