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- Sylvie Soskin, Oleg M Yevtushenko, R. Mannella
- Physical review letters
- 2003

We show that the onset of global chaos in a time periodically perturbed Hamiltonian system may occur at unusually small magnitudes of perturbation if the unperturbed system possesses more than oneâ€¦ (More)

- Sylvie Soskin, R. Mannella, Oleg M Yevtushenko
- Physical review. E, Statistical, nonlinear, andâ€¦
- 2008

We have developed a general method for the description of separatrix chaos, based on the analysis of the separatrix map dynamics. Matching it with the resonant Hamiltonian analysis, we show that, forâ€¦ (More)

We consider time-periodically perturbed 1D Hamiltonian systems possessing one or more separatrices. If the perturbation is weak, then the separatrix chaos is most developed when the perturbationâ€¦ (More)

- Igor V. Yurkevich, Alexey Galda, Oleg M Yevtushenko, Igor V. Lerner
- Physical review letters
- 2013

We study electronic transport in a Luttinger liquid with an embedded impurity, which is either a weak scatterer (WS) or a weak link (WL), when interacting electrons are coupled to one-dimensionalâ€¦ (More)

- Sylvie Soskin, Oleg M Yevtushenko, R. Mannella
- Physical review letters
- 2005

We show for the first time that a weak perturbation in a Hamiltonian system may lead to an arbitrarily wide chaotic layer and fast chaotic transport. This generic effect occurs in any spatiallyâ€¦ (More)

- Oleg M Yevtushenko, Vladimir E. Kravtsov
- Physical review. E, Statistical, nonlinear, andâ€¦
- 2004

We study the density of states (DOS) for disordered systems whose spectral statistics can be described by a Gaussian ensemble of almost-diagonal Hermitian random matrices. The matrices haveâ€¦ (More)

We develop a new approach to the theoretical treatment of the separatrix chaos, using a special analysis of the separatrix map. The approach allows us to describe boundaries of the separatrix chaoticâ€¦ (More)

Abstract. We develop a supersymmetric virial expansion for two point correlation functions of almost diagonal Gaussian Random Matrix Ensembles (ADRMT) of the orthogonal symmetry. These ensembles haveâ€¦ (More)

- Oleg M Yevtushenko, Vladimir I. Yudson
- Physical review letters
- 2018

We show that the paradigmatic Ruderman-Kittel-Kasuya-Yosida (RKKY) description of two local magnetic moments coupled to propagating electrons breaks down in helical Luttinger liquids when theâ€¦ (More)

- Alexei M. Tsvelik, Oleg M Yevtushenko
- Physical review letters
- 2017

We demonstrate that low dimensional Kondo-Heisenberg systems, consisting of itinerant electrons and localized magnetic moments (Kondo impurities), can be used as a principally new platform to realizeâ€¦ (More)