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Akademický článek

Stable two-dimensional soliton complexes in Bose–Einstein condensates with helicoidal spin–orbit coupling

Autor: Y V Kartashov, E Ya Sherman, B A Malomed, V V Konotop

Publikováno v: New Journal of Physics, Vol 22, Iss 10, p 103014 (2020)

We show that attractive two-dimensional (2D) spinor Bose–Einstein condensates with helicoidal spatially periodic spin–orbit coupling (SOC) support a rich variety of stable fundamental solitons and bound soliton complexes. Such states exist with c

Externí odkaz: https://doaj.org/article/dd5a12ad03514200afc4c0b1cb688897

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Akademický článek

Transfer of solitons and half-vortex solitons via adiabatic passage

Autor: Chenhui Wang, Yongping Zhang, V. V. Konotop

Publikováno v: Physical Review Research, Vol 6, Iss 4, p 043089 (2024)

We show that the transfer of matter-wave solitons and half-vortex solitons in a spin-orbit coupled Bose-Einstein condensate between two (or more) arbitrarily chosen sites of an optical lattice can be implemented using the adiabatic passage. The under

Externí odkaz: https://doaj.org/article/7b9bfdbea29c40a9a940b5ee0f227127

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Akademický článek

Jamming anomaly in -symmetric systems

Autor: I V Barashenkov, D A Zezyulin, V V Konotop

Publikováno v: New Journal of Physics, Vol 18, Iss 7, p 075015 (2016)

The Schrödinger equation with a ${ \mathcal P }{ \mathcal T }$ -symmetric potential is used to model an optical structure consisting of an element with gain coupled to an element with loss. At low gain–loss amplitudes γ , raising the amplitude re

Externí odkaz: https://doaj.org/article/de579f5972584bb79acc6a1181cebdfd

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Akademický článek

Bose-Einstein condensates in quasiperiodic lattices: Bosonic Josephson junction, self-trapping, and multimode dynamics

Autor: H. C. Prates, D. A. Zezyulin, V. V. Konotop

Publikováno v: Physical Review Research, Vol 4, Iss 3, p 033219 (2022)

A Bose-Einstein condensate loaded in a one-dimensional bichromatic optical lattice with constituent sublattices having incommensurate periods is considered. Using the rational approximations for the incommensurate periods, we show that below the mobi

Externí odkaz: https://doaj.org/article/d0101828ef4646ddb1113bfc52bbecf8

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Akademický článek

Bloch oscillations sustained by nonlinearity

Autor: R. Driben, V. V. Konotop, T. Meier, A. V. Yulin

Publikováno v: Scientific Reports, Vol 7, Iss 1, Pp 1-8 (2017)

Abstract We demonstrate that nonlinearity may play a constructive role in supporting Bloch oscillations in a model which is discrete, in one dimension and continuous in the orthogonal one. The model can be experimentally realized in several fields of

Externí odkaz: https://doaj.org/article/53f2d817793c49bcb22e4a1106f29d91

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Observation of linear and nonlinear light localization at the edges of moiré arrays

Autor: A. A. Arkhipova, Y. V. Kartashov, S. K. Ivanov, S. A. Zhuravitskii, N. N. Skryabin, I. V. Dyakonov, A. A. Kalinkin, S. P. Kulik, V. O. Kompanets, S. V. Chekalin, F. Ye, V. V. Konotop, L. Torner, V. N. Zadkov

We observe linear and nonlinear light localization at the edges and in the corners of truncated moir\'e lattices created by the superposition of periodic mutually-twisted at Pythagorean angles square sublattices. Experimentally exciting corner linear

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3af0331868b69e4aa2ed3545599cd22e
https://hdl.handle.net/2117/390403

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Akademický článek

Multidimensional hybrid Bose-Einstein condensates stabilized by lower-dimensional spin-orbit coupling

Autor: Y. V. Kartashov, L. Torner, M. Modugno, E. Ya. Sherman, B. A. Malomed, V. V. Konotop

Publikováno v: Physical Review Research, Vol 2, Iss 1, p 013036 (2020)

We show that attractive spinor Bose-Einstein condensates under the action of spin-orbit coupling (SOC) and Zeeman splitting form self-sustained stable two- and three-dimensional (2D and 3D) states in free space, even when SOC acts in a lower-dimensio

Externí odkaz: https://doaj.org/article/5d6957ca11f042fbb35a3d4b1f9897e9

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Interaction of a soliton with point impurities in an inhomogeneous, discrete nonlinear Schrödinger system

Autor: A. R. Bishop, V. V. Konotop, Mario Salerno, Niels Grønbech-Jensen, David Cai

Publikováno v: Physical Review E. 53:6476-6485

We develop a comprehensive perturbation theory for the inhomogeneous, discrete one-dimensional nonlinear Schr{umlt o}dinger equation based on the inverse scattering transform. We also discuss single-soliton dynamics within the adiabatic approximation

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3b4a014744ca81d23095941a7bc692a1
https://doi.org/10.1103/physreve.53.6476

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