6 papers
Correlated adatom trimer on metal surface: A continuous time quantum Monte Carlo study
V. V. Savkin, A. N. Rubtsov, M. I. Katsnelson +1
The problem of three interacting Kondo impurities is solved within a numerically exact continuous time quantum Monte Carlo scheme. A suppression of the Kondo resonance by interatom…
Continuous Time Quantum Monte Carlo method for fermions
A. N. Rubtsov, V. V. Savkin, A. I. Lichtenstein
We present numerically exact continuous-time Quantum Monte Carlo algorithm for fermions with a general non-local in space-time interaction. The new determinantal grand-canonical sc…
Continuous Time Quantum Monte Carlo Method for Fermions: Beyond Auxiliary Field Framework
A. N. Rubtsov, A. I. Lichtenstein
Numerically exact continuous-time Quantum Monte Carlo algorithm for finite fermionic systems with non-local interactions is proposed. The scheme is particularly applicable for gene…
Monte Carlo simulations of the classical two-dimensional discrete frustrated model
V. V. Savkin, A. N. Rubtsov, T. Janssen
The classical two-dimensional discrete frustrated model is studied by Monte Carlo simulations. The correlation function is obtained for two values of a parameter that det…
Quantum discrete model at finite temperatures: the mean-field phase diagram
V. V. Savkin, A. N. Rubtsov
The quantum discrete model at finite temperature is studied in the mean-field approximation. The phase diagrams are obtained for a wide range of the model parameters. The dom…
Oscillatory screening of the dc electric field in the Si-SiO multiple quantum wells probed by second-harmonic generation
V. V. Savkin, A. A. Fedyanin, A. N. Rubtsov +2
DC-electric field, being screened in 3D semiconductors, normally decays monotonically in space. Experimental studies of the DC electric field screening in Si-SiO multiple quant…