4 papers
Enhancement of superconducting stiffness in hybrid superconducting-metallic bilayers
J. E. Ebot, Lorenzo Pizzino, Sam Mardazad +3
Boosting superconductivity by metallic reservoirs is the essence of Kivelson's bilayer proposal. One layer provides pairing to the electrons, while the weakly coupled metal provide…
Strong enhancements to superconducting properties of 1D systems from metallic reservoirs
J. E. Ebot, Sam Mardazad, Lorenzo Pizzino +3
Using a 1D bilayer system comprised of pairing and metallic layers, the present work proves the striking power of reservoir-mediated boosting of superconductivity. Employing many-b…
Ground states of quasi-two-dimensional correlated systems via energy expansion
Sam Mardazad, Nicolas Laflorencie, Johannes Motruk +1
We introduce a generic method for computing groundstates that is applicable to a wide range of spatially anisotropic 2D many-body quantum systems. By representing the 2D system usi…
Fusing matrix-product states with quantum Monte Carlo: reducing entanglement and sign problem at the same time
Gunnar Bollmark, Sam Mardazad, Johannes S. Hofmann +1
Systems of correlated quantum matter can be a steep challenge to any would-be method of solution. Matrix-product state (MPS)-based methods can describe 1D systems quasiexactly, but…