麻豆传媒

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Researchers at the Facility for Rare Isotope Beams made a high-precision mass measurement of aluminum-22, reaching the 鈥減roton dripline鈥� of the nuclear chart. The project found that aluminum-22 formed a proton halo, where the last proton added is only loosely bound to the nucleus. This measurement helps scientists determine how tightly bound the atomic nuclei are as they get closer to the dripline.

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Small modular reactors could play key role in rebuilding a clean economy in post-war Ukraine. Argonne scientists will assess the emerging technology in new research.

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Entangled quantum bits per second (ebps) indicates a quantum network鈥檚 throughput. In this study, researchers collected ebps measurements over a suite of fiber connections on a quantum network testbed. They then compared these measurements with capacity estimates for a conventional fiber-optic network at a range of distances. The study finds that ebps throughput decays sharply with distance in ways that differ from conventional networks.

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Researchers used the Dark Energy Spectroscopic Instrument to map how nearly 6 million galaxies cluster across 11 billion years of cosmic history. Their observations line up with what Einstein's theory of general relativity predicts.

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For the first time, scientists can distinguish the proportion of bromoform molecules that directly break bonds (dissociate) vs. those that rearrange (isomerize). This is an important step toward understanding the formation of bromoform isomers, which had long been predicted but had not been fully experimentally confirmed.

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SLAC鈥檚 SSRL helps pin down key players in the microbial production of methylmercury, a poison that can accumulate in fish.

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The Department of Energy's Quantum Computing User Program at the Oak Ridge Leadership Computing Facility is releasing a Request for Information to understand the latest in quantum computing hardware, software tools and user engagement.

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The trace anomaly is one of the quantities that encodes the energy and momentum of particles built from quarks. Scientists believe the trace anomaly is crucial for keeping quarks bonded in subatomic particles. In this study, scientists calculated the trace anomaly for nucleons and pions. The calculations show that in the pion, the mass distribution is similar to the charge distribution of the neutron and in the nucleon, the mass distribution is similar to the charge distribution of the proton.

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How to keep stray radiation from 鈥渟horting鈥� superconducting qubits; a pair of studies shows where ionizing radiation is lurking and how to banish it.

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The behavior of catalysts that promote chemical reactions is not always straightforward. Using a combination of experiments and computer simulations, scientists now understand how oxygen affects the way the catalyst copper oxide reacts with hydrogen versus carbon monoxide gases and how to control and enhance related chemical reactions.