15–16 Sept 2022
Observatorio Astronómico UNAL
America/Bogota timezone

Schrödinger-Poisson model for the growth of cosmic structures

16 Sept 2022, 14:25
25m
Auditorio Observatorio Astronómico Nacional (Observatorio Astronómico UNAL)

Auditorio Observatorio Astronómico Nacional

Observatorio Astronómico UNAL

Universidad Nacional de Colombia, Sede Bogotá, Edificio 413.

Speaker

Jeison Stiven Lenis Trujillo (Universidad del Valle)

Description

The formation of structures in the universe is studied with the help of a dynamical cold dark matter model addressed as the Schrödinger-Poisson model. The Schrödinger-Poisson equation (SPE) is obtained from the Vlasov-Poisson equation which is derived in a perturbation regime of the fluid equations in the Newtonian regime. The SPE is restricted to one dimension and numerically integrated using a representation in a B-Splines basis and the Crank-Nicolson method, under the Magnus approximation, for the time propagation. Using different dark energy models we obtain the cold dark matter dynamics and the matter power spectrum. We discuss the effects of these models paying special attention to the comparison with the $\Lambda$-CDM model.

Author

Jeison Stiven Lenis Trujillo (Universidad del Valle)

Co-authors

Dr CESAR ALONSO VALENZUELA TOLEDO (Departamento de Física, Universidad del Valle) Dr Javier Madroñero Pabón (Centre for Bioinformatics and Photonics (CiBioFi), Universidad del Valle) Mr Victor Alfonso Loaiza Moreno (Centre for Bioinformatics and Photonics (CiBioFi), Universidad del Valle) Mr William Esteban Salazar Estrada (Centre for Bioinformatics and Photonics (CiBioFi), Universidad del Valle)

Presentation materials