170 citations · 1.5k across the 53 of their papers we have counts for
53 papers
Magnetic fluctuations in PbCu(PO)O
Makoto Shimizu, Junya Otsuki, Harald O. Jeschke
The hope that copper doped lead apatite PbCu(PO)O is a room-temperature superconductor has largely been dashed by global research efforts. Nevertheless, according to th…
Pressure evolution of electronic structure and magnetism in the layered van der Waals ferromagnet CrGeTe
Han-Xiang Xu, Makoto Shimizu, Daniel Guterding +2
Layered van der Waals ferromagnets, which preserve their magnetic properties down to exfoliated monolayers, are fueling an abundance of fundamental research and nanoscale device de…
sparse-ir: optimal compression and sparse sampling of many-body propagators
Markus Wallerberger, Samuel Badr, Shintaro Hoshino +13
We introduce sparse-ir, a collection of libraries to efficiently handle imaginary-time propagators, a central object in finite-temperature quantum many-body calculations. We levera…
Robust analytic continuation combining the advantages of the sparse modeling approach and Padé approximation
Yuichi Motoyama, Kazuyoshi Yoshimi, Junya Otsuki
Analytic continuation (AC) from the imaginary-time Green's function to the spectral function is a crucial process for numerical studies of the dynamical properties of quantum many-…
Efficient ab initio many-body calculations based on sparse modeling of Matsubara Green's function
Hiroshi Shinaoka, Naoya Chikano, Emanuel Gull +6
This lecture note reviews recently proposed sparse-modeling approaches for efficient ab initio many-body calculations based on the data compression of Green's functions. The sparse…
Spectral properties of heterostructures containing half-metallic ferromagnets in the presence of local many-body correlations
A. Weh, J. Otsuki, H. Schnait +4
In this work, we investigate models for bulk, bi- and multilayers containing half-metallic ferromagnets (HMFs), at zero and at finite temperature, in order to elucidate the effects…