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Alexey N. Rubtsov
Researcher at Moscow State University
Publications - 139
Citations - 4766
Alexey N. Rubtsov is an academic researcher from Moscow State University. The author has contributed to research in topics: Hubbard model & Quantum Monte Carlo. The author has an hindex of 28, co-authored 131 publications receiving 3920 citations. Previous affiliations of Alexey N. Rubtsov include University of Michigan & National University of Science and Technology.
Papers
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Continuous-time Monte Carlo methods for quantum impurity models
Emanuel Gull,Andrew J. Millis,Alexander I. Lichtenstein,Alexey N. Rubtsov,Matthias Troyer,Philipp Werner +5 more
TL;DR: In this paper, the continuous-time quantum Monte Carlo (QMC) algorithm is used to solve the local correlation problem in quantum impurity models with high and low energy scales and is effective for wide classes of physically realistic models.
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Continuous-time quantum Monte Carlo method for fermions
TL;DR: In this article, a numerically exact continuous-time quantum Monte Carlo algorithm for fermions with a general interaction nonlocal in space-time is presented, which is based on a stochastic series expansion for the partition function in the interaction representation.
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Diagrammatic routes to nonlocal correlations beyond dynamical mean field theory
G. Rohringer,Hartmut Hafermann,Alessandro Toschi,A. A. Katanin,Andrey E. Antipov,Mikhail I. Katsnelson,Alexander I. Lichtenstein,Alexey N. Rubtsov,Karsten Held +8 more
TL;DR: In this paper, the authors present a review of the state-of-the-art methods for strong electronic correlations, starting with the local, eminently important correlations of dynamical mean field theory (DMFT).
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Dual fermion approach to nonlocal correlations in the Hubbard model
TL;DR: In this paper, a diagrammatic technique is developed to describe pseudogap formation in the Hubbard-like models, which utilizes an exact transition to the dual set of variables, and therefore becomes possible to treat the irreducible vertices of an effective single-impurity problem as small parameters.
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High-harmonic spectroscopy of ultrafast many-body dynamics in strongly correlated systems
TL;DR: In this article, high-harmonic generation can be used to time-resolve ultrafast many-body dynamics associated with an optically driven phase transition, with accuracy far exceeding one cycle of the driving light field.