Tag Archive for 'Cooper pairs'

Fore et al. study neutron star crusts by simulating neutron matter then adding ‘hidden’ neutrons to mediate interactions between ‘real’ neutrons; next, neural networks construct a quantum wave function of neutron matter’s normal and superfluid phases. Image credit: Jane Kim, Ohio University.

Physicists Find Evidence for Superfluidity in Low-Density Neutron Matter

Nov 11, 2024 by News Staff

An accurate description of low-density nuclear matter is crucial for explaining the physics of neutron star crusts, according to a team of theoretical...

Scanning electron microscopy image of a nanopatterned YBa2Cu3O7−δ (YBCO) thin film. The 12-nm-thick nanopatterned YBCO thin film was fabricated by reactive ion etching through an anodic aluminium oxide (AAO) membrane directly placed atop the YBCO. By RIE, the anodized aluminium oxide pattern of a triangular array of holes with ~70-nm diameter and ~103-nm period was duplicated onto the YBCO film. Image credit: Yang et al., doi: 10.1038/s41586-021-04239-y.

Physicists Discover New Type of ‘Strange Metal’

Jan 14, 2022 by News Staff

A team of physicists from the United States and China has detected the unexpected signatures of strange metallicity in a material in which electrical charge...

Tiny holes punched into a high-temperature superconducting material revealed that Cooper pairs can also conduct electricity the way metals do. Image credit: Brown University.

Scientists Uncover New State of Matter in Superconductor

Nov 15, 2019 by News Staff

An international team of physicists and materials scientists from the United States and China has discovered a new state of matter they’ve named ‘Cooper...

$Excitation spectra of the Higgs-like state: (a) excitation spectra of the Higgs-like state for different interaction strengths, 1/(kFa); the different levels of background condensate fraction are due to the different 1/(kFa); the solid lines shows the Gaussian fit to the high-frequency side of the spectra; the error bars show the standard deviation of approximately four measurements; (b) time-of-flight image of the condensate with the thermal background subtracted at 1/(kFa)=−0.43; rings indicate momentum intervals of 0.02kF; (c) momentum-resolved analysis of the Higgs excitation inside the condensate by averaging the optical density in the color-coded rings in (b) for different modulation frequencies; the resonance occurs at the same modulation frequency for all momenta. Image credit: Behrle et al, doi: 10.1038/s41567-018-0128-6.$

Experiment Provides Further Insights into Higgs Boson Physics

Jun 29, 2018 by News Staff

A new experiment by physicists at the University of Bonn, Germany, has achieved a Higgs-like state in a system composed of ultracold atoms. Excitation...