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cond-mat.str-el2026
Mapping reservoir-enhanced superconductivity to near-long-range magnetic order in the undoped one-dimensional Anderson and Kondo lattices
J. E. Ebot, Lorenzo Pizzino, Sam Mardazad +3
The undoped Kondo necklace in 1D is a paradigmatic and well understood model of a Kondo insulator. This work performs the first large-scale study of the 1D Anderson-lattice underly…
cond-mat.str-el2025
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…
cond-mat.str-el2024
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…