Zobrazeno 1 - 10
of 17
pro vyhledávání: '"Major Ján"'
Publikováno v:
Open Physics, Vol 17, Iss 1, Pp 468-479 (2019)
In this paper we introduce the concept of segmentation based on mathematical approach using graph theory algorithms using the family of augmenting paths algorithms. We present a new program, an implementation, algorithms and obtained results devoted
Externí odkaz:
https://doaj.org/article/fe7351aa0b924975927fd6e9e4a3ba65
Autor:
Major, Jan, Brand, Joachim
Publikováno v:
Phys. Rev. A 110, 033320 (2024)
Soliton-like localised wave solutions in a two-dimensional Fermi superfluid are studied by solving the Bogoliubov-de Gennes equations in the BCS regime of weak pairing interactions. The dispersion relations of these solitons are found to exhibit a pe
Externí odkaz:
http://arxiv.org/abs/2405.08184
Publikováno v:
Phys. Rev. A 98, 053633 (2018)
Single particle localization of an ultra-cold atom is studied in one dimension when the atom is confined by an optical lattice and by the incommensurate potential of a high-finesse optical cavity. In the strong coupling regime the atom is a dynamical
Externí odkaz:
http://arxiv.org/abs/1808.07509
Autor:
Major, Jan
Topic of the thesis is a theoretical description of the ultracold atomic gases in one- and two-dimensional optical lattices in the presence of the disorder leading to the Anderson localization. The disorder is created by interaction of the main fract
Externí odkaz:
http://arxiv.org/abs/1707.05400
Publikováno v:
Phys. Rev. A 96, 033620 (2017)
We propose a realization of a synthetic Random Flux Model in a two-dimensional optical lattice. Starting from Bose-Hubbard Hamiltonian for two atom species we show how to use fast-periodic modulation of the system parameters to construct random gauge
Externí odkaz:
http://arxiv.org/abs/1706.07497
The extended states in disordered 1D systems in the presence of the generalized $N$-mer correlations
Autor:
Major, Jan
Publikováno v:
Phys. Rev. A 94, 053613 (2016)
We have been investigating the problem of the Anderson localization in a disordered one dimensional tight-binding model. The disorder is created by the interaction of mobile particles with other species, immobilized at random positions. We introduce
Externí odkaz:
http://arxiv.org/abs/1607.01913
We investigate one dimensional tight binding model in the presence of a correlated binary disorder. The disorder is due to the interaction of particles with heavy immobile other species. Off-diagonal disorder is created by means of a fast periodic mo
Externí odkaz:
http://arxiv.org/abs/1507.05502
Publikováno v:
Phys. Rev. A 92, 023606 (2015)
We investigate a celebrated problem of one dimensional tight binding model in the presence of disorder leading to Anderson localization from a novel perspective. A binary disorder is assumed to be created by immobile heavy particles for the motion of
Externí odkaz:
http://arxiv.org/abs/1502.02453
Publikováno v:
Phys. Rev. A 89, 043626 (2014)
For strongly interacting bosons in optical lattices the standard description using Bose-Hubbard model becomes questionable. The role of excited bands becomes important. In such a situation we compare results of simulations using multiband Bose-Hubbar
Externí odkaz:
http://arxiv.org/abs/1311.7510
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