New theory links quantum geometry to electron-phonon coupling

Researchers have developed a theory linking quantum geometry to electron-phonon coupling (EPC), which is crucial for superconductivity. By examining the geometric and topological properties of electronic wavefunctions, they discovered that quantum geometry significantly enhances EPC. This theory was tested on materials like graphene and magnesium diboride, revealing substantial geometric contributions to EPC. The findings suggest that understanding and manipulating quantum geometry can lead to the development of better superconductors and other advanced quantum materials.

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