Superconducting coherence length of hole-doped cuprates obtained from electron–boson spectral density function
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DOI: 10.1038/s41598-021-91163-w
Abstract: Electron–boson spectral density functions (EBSDFs) can be obtained from measured spectra using various spectroscopic techniques, including optical spectroscopy. EBSDFs, known as glue functions, are suggested to have a magnetic origin. Here, we investigated EBSDFs obtained… read more here.
Keywords: coherence; hole doped; doped cuprates; boson spectral ... See more keywords
Electron-boson spectral density functions of cuprates obtained from optical spectra via machine learning
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DOI: 10.1103/physrevb.104.235154
Abstract: The electron-boson spectral density (EBSD) function can be obtained from measured optical scattering rate by solving a generalized Allen formula, which relates the two quantities with an integral equation and is an inversion problem. Thus… read more here.
Keywords: electron boson; method; spectral density; machine learning ... See more keywords
Functional approach to the electronic and bosonic dynamics of many-body systems perturbed with an arbitrary strong electron-boson interaction
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DOI: 10.1103/physrevb.98.075105
Abstract: We present a formal derivation of the many-body perturbation theory for a system of electrons and bosons subject to a nonlinear electron-boson coupling. The interaction is treated at an arbitrary high order of bosons scattered.… read more here.
Keywords: many body; electron; electron boson; electronic bosonic ... See more keywords