Zobrazeno 1 - 10 of 125 pro vyhledávání: '"Taksu Cheon"'
1
Akademický článek
Tipping Points in Opinion Dynamics: A Universal Formula in Five Dimensions
Autor: Serge Galam, Taksu Cheon
Publikováno v: Frontiers in Physics, Vol 8 (2020)
A universal formula is shown to predict the dynamics of public opinion including eventual sudden and unexpected outbreaks of minority opinions within a generic parameter space of five dimensions. The formula is obtained by combining and extending sev
Externí odkaz: https://doaj.org/article/0bc2d8e7ef814844b2338e9475405b05
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2
Akademický článek
Asymmetric Contrarians in Opinion Dynamics
Autor: Serge Galam, Taksu Cheon
Publikováno v: Entropy, Vol 22, Iss 1, p 25 (2019)
Asymmetry in contrarian behavior is investigated within the Galam model of opinion dynamics using update groups of size 3 with two competing opinions A and B. Denoting x and y the respective proportions of A and B contrarians, four schemes of impleme
Externí odkaz: https://doaj.org/article/a3312c1e0192433e990cd5e4a20ad249
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3
Akademický článek
EXAMPLES OF QUANTUM HOLONOMY WITH TOPOLOGY CHANGES
Autor: Taksu Cheon, Atushi Tanaka, Ondřej Turek
Publikováno v: Acta Polytechnica, Vol 53, Iss 5 (2013)
We study a family of closed quantum graphs described by one singular vertex of order n = 4. By suitable choice of the parameters specifying the singular vertex, we can construct a closed path in the parameter space that physically corresponds to the
Externí odkaz: https://doaj.org/article/868668a3deea4666a3ec8947c4fe9dd9
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4
Akademický článek
Complete population inversion of Bose particles by an adiabatic cycle
Autor: Atushi Tanaka, Taksu Cheon
Publikováno v: New Journal of Physics, Vol 18, Iss 4, p 045023 (2016)
We show that an adiabatic cycle excites Bose particles confined in a one-dimensional box. During the adiabatic cycle, a wall described by a δ -shaped potential is applied and its strength and position are slowly varied. When the system is initially
Externí odkaz: https://doaj.org/article/ac592565a30143558e8ad39c0cb1d6bf
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5
Current production in ring condensates with a weak link
Autor: Taksu Cheon, J. Polo, Axel Pérez-Obiol
Publikováno v: Physical Review A. 102
We consider attractive and repulsive condensates in a ring trap stirred by a weak link, and analyze the spectrum of solitonic trains dragged by the link, by means of analytical expressions for the wave functions, energies and currents. The precise ev
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f88fe444946bd824e802dd69d0a23418
https://doi.org/10.1103/physreva.102.063302
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6
Generating a nonequilibrium stationary state from a ground-state condensate through an almost adiabatic cycle
Autor: Atushi Tanaka, Takaaki Nakamura, Taksu Cheon
Publikováno v: Physical Review A. 102
It is shown that the ground state of weakly interacting Bose particles in a quasi one-dimensional box trap can be converted into an excited stationary state by an adiabatic cyclic operation that involves a quench of interaction strength: A sharp impu
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::270af5afc33831b58d78347015f04402
https://doi.org/10.1103/physreva.102.013308
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7
Asymmetric Contrarians in Opinion Dynamics
Autor: Serge Galam, Taksu Cheon
Publikováno v: Entropy
Entropy, MDPI, 2020, 22 (1), pp.1-19. ⟨10.3390/e22010025⟩
Volume 22
Issue 1
Entropy, Vol 22, Iss 1, p 25 (2019)
Entropy, 22(1), 1-19 (2020-01)
Asymmetry in contrarian behavior is investigated within the Galam model of opinion dynamics using update groups of size 3 with two competing opinions A and B. Denoting $x$ and $y$ the respective proportions of A and B contrarians, four schemes of imp
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6a2a876cef2512dec0868dede21b6ba8
https://hal-sciencespo.archives-ouvertes.fr/hal-03052089
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9
Bose-Einstein condensate confined in a one-dimensional ring stirred with a rotating delta link
Autor: Axel Pérez-Obiol, Taksu Cheon
Publikováno v: Physical review. E. 101(2-1)
We consider a Bose-Einstein condensate with repulsive interactions confined in a one-dimensional ring where a Dirac δ is rotating at constant speed. The spectrum of stationary solutions in the δ comoving frame is analyzed in terms of the nonlinear
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7be9fc8f2c4a4f49f2e21b1780909c36
https://pubmed.ncbi.nlm.nih.gov/32168626
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10
Tipping points in opinion dynamics: a universal formula in five dimensions
Autor: Taksu Cheon, Serge Galam
Publikováno v: Frontiers in Physics, Vol 8 (2020)
Frontiers in Physics
Frontiers in Physics, Frontiers, 2020, 8, pp.Online. ⟨10.3389/fphy.2020.566580⟩
Frontiers in physics
Frontiers in physics, 2020, 8, pp.Online. ⟨10.3389/fphy.2020.566580⟩
Frontiers in physics, 8, Online-(2020-11)
A universal formula is shown to predict the dynamics of public opinion including eventual sudden and unexpected outbreaks of minority opinions within a generic parameter space of five dimensions. The formula is obtained combining and extending severa
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::59c338b0bb371d21128aac00cb47c581
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