1.6k citations · 1.9k across the 13 of their papers we have counts for
6 papers · 1 filter
Dual parquet scheme for the two-dimensional Hubbard model: modelling low-energy physics of high- cuprates with high momentum resolution
G. V. Astretsov, G. Rohringer, A. N. Rubtsov
We present a new method to treat the two-dimensional (2D) Hubbard model for parameter regimes which are relevant for the physics of the high- superconducting cuprates. Unlike…
Non-Markovian Quantum State Diffusion in a Fermionic Bath
Evgeny A. Polyakov, Alexey N. Rubtsov
We present a stochastic approach for the description of the quantum dynamics of open system in a fermionic environment (bath). The full quantum evolution as provided by the Schrodi…
Highly parallel algorithm for the Ising ground state searching problem
A. Yavorsky, L. A. Markovich, E. A. Polyakov +1
Finding an energy minimum in the Ising model is an exemplar objective, associated with many combinatorial optimization problems, that is computationally hard in general, but occurs…
Fate of a topological invariant for correlated lattice electrons at finite temperature
A. A. Markov, G. Rohringer, A. N. Rubtsov
Electrons on a two-dimensional (2) lattice which is exposed to a strong uniform magnetic field show intriguing physical phenomena. The spectrum of such systems exhibits a comple…
Exact real-time dynamics of single-impurity Anderson model from a single-spin hybridization-expansion
Patryk Kubiczek, Alexey N. Rubtsov, Alexander I. Lichtenstein
In this work we introduce a modified real-time continuous-time hybridization-expansion quantum Monte Carlo solver for a time-dependent single-orbital Anderson impurity model: CT-1/…
Dual Boson approach with instantaneous interaction
L. Peters, E. G. C. P. van Loon, A. N. Rubtsov +3
The Dual Boson approach to strongly correlated systems generally involves a dynamic (frequency-dependent) interaction in the auxiliary impurity model. In this work, we explore the…