Zobrazeno 1 - 10
of 61
pro vyhledávání: '"Nguenang, Jean Pierre"'
Autor:
Youwa, Laetitia Mbetkwe, Nguenang, Jean Pierre, Paglan, Paul André, Dauxois, Thierry, Trombettoni, Andrea, Ruffo, Stefano
We study the effective dynamics of ferromagnetic spin chains in presence of long-range interactions. We consider the Heisenberg Hamiltonian in one dimension for which the spins are coupled through power-law long-range exchange interactions with expon
Externí odkaz:
http://arxiv.org/abs/2210.13201
Publikováno v:
In Physica B: Condensed Matter 15 October 2023 667
Autor:
Chendjou, Gervais Nazaire Beukam, Nguenang, Jean Pierre, Trombettoni, Andrea, Dauxois, Thierry, Khomeriki, Ramaz, Ruffo, Stefano
Publikováno v:
Journal of Statistical Mechanics Theory and Experiment 2019(10):104015
We study analytical solutions of the Fractional Boussinesq Equation (FBE), which is an effective model for the Fermi-Pasta-Ulam (FPU) one-dimensional lattice with long-range couplings. The couplings decay as a power-law with exponent s, with 1 < s <
Externí odkaz:
http://arxiv.org/abs/1909.13799
Autor:
Laetitia, Mbetkwe Youwa, Nguenang, Jean Pierre, Paglan, Paul André, Dauxois, Thierry, Trombettoni, Andrea, Ruffo, Stefano
Publikováno v:
In Communications in Nonlinear Science and Numerical Simulation February 2023 117
Autor:
Fendzi-Donfack, Emmanuel, Kamkou Temgoua, Gildas William, Djoufack, Zacharie Isidore, Kenfack-Jiotsa, Aurélien, Nguenang, Jean Pierre, Nana, Laurent
Publikováno v:
In Chaos, Solitons and Fractals: the interdisciplinary journal of Nonlinear Science, and Nonequilibrium and Complex Phenomena July 2022 160
Autor:
Fendzi-Donfack, Emmanuel, Kumar, Dipankar, Tala-Tebue, Eric, Nana, Laurent, Nguenang, Jean Pierre, Kenfack-Jiotsa, Aurélien
Publikováno v:
In Results in Physics January 2022 32
Autor:
Miloshevich, George, Nguenang, Jean Pierre, Dauxois, Thierry, Khomeriki, Ramaz, Ruffo, Stefano
Publikováno v:
Journal of Physics A: Mathematical and Theoretical 50.12 (2017)
We investigate the existence and propagation of solitons in a long-range extension of the quartic Fermi-Pasta-Ulam (FPU) chain of anharmonic oscillators. The coupling in the linear term decays as a power-law with an exponent greater than 1 and less t
Externí odkaz:
http://arxiv.org/abs/1611.05350
Publikováno v:
In Chaos, Solitons and Fractals: the interdisciplinary journal of Nonlinear Science, and Nonequilibrium and Complex Phenomena February 2020 131
Akademický článek
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Autor:
Miloshevich, George, Nguenang, Jean-Pierre, Dauxois, Thierry, Khomeriki, Ramaz, Ruffo, Stefano
Publikováno v:
Phys. Rev. E 91, 032927 (2015)
We study instabilities and relaxation to equilibrium in a long-range extension of the Fermi-Pasta-Ulam-Tsingou (FPU) oscillator chain by exciting initially the lowest Fourier mode. Localization in mode space is stronger for the long-range FPU model.
Externí odkaz:
http://arxiv.org/abs/1410.2049