127 citations · 1.2k across the 63 of their papers we have counts for
64 papers
Quantum geometry of collective pairing fluctuations in the superfluid weight of multiband superconductors
R. N. Kalkan, M. Iskin
Beyond the frozen-pairing contribution, the superfluid weight of a multiband superconductor contains a correction from the self-consistent relaxation of the pairing amplitudes unde…
Coherence length and quantum geometry in a dilute flat-band superconductor
M. Iskin
To explore the influence of quantum-geometric effects on the Ginzburg-Landau coherence length in a dilute flat-band superconductor, we adopt a BCS-BEC crossover approach to the mul…
Cooper pairing, flat-band superconductivity and quantum geometry in the pyrochlore-Hubbard model
M. Iskin
We investigate the impacts of the quantum geometry of Bloch states, specifically through the band-resolved quantum-metric tensor, on Cooper pairing and flat-band superconductivity…
Chern numbers for the two-body Hofstadter-Hubbard butterfly
D. C. Alyuruk, M. Iskin
We analyze the two-body spectrum within the Hofstadter-Hubbard model on a square lattice through an exact variational ansatz and study the topological properties of its low-lying t…
Extracting quantum-geometric effects from Ginzburg-Landau theory in a multiband Hubbard model
M. Iskin
We first apply functional-integral approach to a multiband Hubbard model near the critical pairing temperature, and derive a generic effective action that is quartic in the fluctua…
Topological two-body bands in a multiband Hubbard model
M. Iskin
In a multiband Hubbard model the self-consistency relations for the two-body bound-state bands are in the form of a nonlinear eigenvalue problem. Assuming that the resultant eigenv…