The quest of null electromagnetics knots from Seifert fibration

2023-09-27T17:49:49+02:00Tags: , , , |

Authors: Arrayas, Manuel; Tiemblo, Alfredo; Trueba, Jose L. Journal: CHAOS SOLITONS & FRACTALS Publication date: 2023/01/01 DOI: 10.1016/j.chaos.2022.113002 Abstract: In this work we find new null electromagnetic fields that are exact solutions of Maxwell equations in vacuum and generalize the hopfion. The hopfion is an exact solution of Maxwell equations in vacuum in which all [...]

Surface Diffusion by Means of Stochastic Wave Functions. The Ballistic Regime

2022-04-05T17:41:18+02:00Tags: |

Authors: Torres-Miyares, E. E.; Rojas-Lorenzo, G.; Rubayo-Soneira, J.; Miret-Artes, S. Journal: MATHEMATICS Publication date: 2021/02/01 DOI: 10.3390/math9040362 Abstract: Stochastic wave function formalism is briefly introduced and applied to study the dynamics of open quantum systems; in particular, the diffusion of Xe atoms adsorbed on a Pt(111) surface. By starting from a Lindblad functional and within [...]

Lorentzian Symmetric Spaces Which are Einstein-Yang-Mills with Respect to Invariant Metric Connections

2021-02-12T10:07:58+01:00Tags: , |

Authors: Castrillon Lopez, Marco; Gadea, P. M.; Rosado Maria, Maria Eugenia Contribution: Article Journal: RESULTS IN MATHEMATICS Publication date: 2020/09/05 DOI: 10.1007/s00025-020-01259-4 Abstract: We classify four-dimensional connected simply-connected Lorentzian symmetric spaces M with connected nontrivial isotropy group furnishing solutions of the Einstein-Yang-Mills equations. Those solutions are built with respect to some invariant metric connection. in the [...]

Wigner instability analysis of the damped Hirota equation

2021-02-12T10:07:58+01:00Tags: , , , , |

Authors: Assaubay, Al-Tarazi; Castro, Alejandro J.; Valido, Antonio A. Contribution: Review Journal: PHYSICA D-NONLINEAR PHENOMENA Publication date: 2020/10/01 DOI: 10.1016/j.physd.2020.132587 Abstract: We address the modulation instability of the Hirota equation in the presence of stochastic spatial incoherence and linear time-dependent amplification/attenuation processes via the Wigner function approach. We show that the modulation instability remains baseband type, [...]

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