183 citations · 307 across the 8 of their papers we have counts for
8 papers
Augmenting Imaginary-Time Evolution with Local Geometric Information
Carlos L. Benavides-Riveros, Prachi Sharma, Fedor Šimkovic +1
Imaginary-time evolution (ITE) underpins a broad family of algorithms for ground-state preparation in quantum simulation and quantum many-body physics. In these methods, convergenc…
Quantum-Classical Auxiliary-Field Quantum Monte Carlo at the Edge of Practicability
Francesco Nappi, Matthew Kiser, Fedor Šimkovic
We introduce algorithmic improvements to quantum-classical auxiliary-field quantum Monte Carlo (QC-AFQMC) that reduce the dominant per-step classical scaling from $\tilde{\mathcal{…
Barbell Codes: qLDPC Codes for Superconducting Quantum Hardware
Shin Ho Choe, Vincent Steffan, Florian Vigneau +5
The major challenge on the way to fault-tolerant quantum computing comes from the insufficient quality of hardware components and the difficulty of scaling their number without fur…
Quantum Assisted Ghost Gutzwiller Ansatz
P. V. Sriluckshmy, François Jamet, Fedor Šimkovic
The ghost Gutzwiller ansatz (gGut) embedding technique was shown to achieve comparable accuracy to the gold standard dynamical mean-field theory method in simulating real material…
Fermion-to-qubit encodings with arbitrary code distance
Manuel G. Algaba, Miha Papič, Inés de Vega +2
We introduce a framework which allows to systematically and arbitrarily scale the code distance of local fermion-to-qubit encodings in one and two dimensions without growing the we…
The Weak, the Strong and the Long Correlation Regimes of the Two-Dimensional Hubbard Model at Finite Temperature
Fedor Šimkovic, Riccardo Rossi, Michel Ferrero
We investigate the momentum-resolved spin and charge susceptibilities, as well as the chemical potential and double occupancy in the two-dimensional Hubbard model as functions of d…
Mott insulating states with competing orders in the triangular lattice Hubbard model
Alexander Wietek, Riccardo Rossi, Fedor Šimkovic +6
The physics of the triangular lattice Hubbard model exhibits a rich phenomenology, ranging from a metal-insulator transition, intriguing thermodynamic behavior, and a putative spin…
Tracking the Footprints of Spin Fluctuations: A MultiMethod, MultiMessenger Study of the Two-Dimensional Hubbard Model
Thomas Schäfer, Nils Wentzell, Fedor Šimkovic +23
The Hubbard model represents the fundamental model for interacting quantum systems and electronic correlations. Using the two-dimensional half-filled Hubbard model at weak coupling…