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"Catalog of topological phonon materials" (2024) https://www.science.org/doi/10.1126/science.adf8458 https://www.science.org/doi/10.1126/science.adf8458 "Non-
by westurner 2y ago
"Catalog of topological phonon materials" (2024)
https://www.science.org/doi/10.1126/science.adf8458 https://www.science.org/doi/10.1126/science.adf8458
"Non-trivial quantum geometry and the strength of electron–phonon coupling" (2024) https://www.nature.com/articles/s41567-024-02486-0 https://www.nature.com/articles/s41567-024-02486-0 :
> Here, we devise a theory that incorporates the quantum geometry of the electron bands into the electron–phonon coupling, demonstrating the crucial contributions of the Fubini–Study metric or its orbital selective version to the dimensionless electron–phonon coupling constant. We apply the theory to two materials, that is, graphene and MgB2, where the geometric contributions account for approximately 50% and 90% of the total electron–phonon coupling constant, respectively. The quantum geometric contributions in the two systems are further bounded from below by topological contributions
> Here, we devise a theory that incorporates the quantum geometry of the electron bands into the electron–phonon coupling, demonstrating the crucial contributions of the Fubini–Study metric or its orbital selective version to the dimensionless electron–phonon coupling constant. We apply the theory to two materials, that is, graphene and MgB2, where the geometric contributions account for approximately 50% and 90% of the total electron–phonon coupling constant, respectively. The quantum geometric contributions in the two systems are further bounded from below by topological contributions
There is emergence in complex fluid attractor systems.
Superhydrodynamics models fluid attractor systems; for example with vorticity in "Gravity as a fluid dynamic phenomenon in a superfluid quantum space. Fluid quantum gravity and relativity." (2015) https://hal.science/hal-01248015/ https://hal.science/hal-01248015/ .. https://news.ycombinator.com/item?id=38871054 https://news.ycombinator.com/item?id=38871054
Vorticity in Electron-Electron interactions:
https://news.ycombinator.com/item?id=40360691 https://news.ycombinator.com/item?id=40360691
Is there emergence from just vorticity?