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A new method for x-ray crystallography expands the technique to identify the structures of molecules that don't easily form large, symmetrical nanocrystals. The North American Monsoon pattern can cause heavy rainfall in Mexico and the American Southwest in the late summer. New research using a more granular model shows that this monsoon is mechanically, rather than thermally, forced. Richard Barnes The researchers demonstrated this new error mitigation approach by simulating the evolution of a chain of six spins (top). Simulating for the longest time requires a circuit that contains 210 CNOT gates. The comparison of the real data from the quantum computer and the mitigated data shows how close the group’s approach comes to the exact results. Sherry Li stands with arms crossed in front of a whiteboard filled with complex mathematical equations, diagrams, and notes. The whiteboard includes various symbols, graphs, and annotations related to statistical models, including a hidden Markov model. The individual is dressed in a dark, long-sleeved top, and the background is a classroom or office setting, suggesting an academic or research environment. Experimental hall of the KATRIN experiment showing the main spectrometer from the front. The outside rings are air-coil magnets used to compensate for the earth's magnetic field. (Credit: KIT/Markus Breig) The East River watershed has become a living field laboratory for scientists to better understand how vital mountainous watersheds throughout the world are responding to environmental change. (Credit: Roy Kaltschmidt, Berkeley Lab) A key question in SARS-CoV-2 infection is why viral loads and patient outcomes are so different across individuals. Because it’s difficult to see how the virus spreads in the lungs of infected people, researchers developed SIMCoV, a computational model that simulates hundreds of millions of cells, including lung cells and immune cells. (Credit: Steve Hofmeyr/Berkeley Lab)
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