Collision of BEC dark matter structures and comparison with the collision of ideal gas structures

Journal Article · Tue Dec 07 00:00:00 EST 2010 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3531645· OSTI ID:21509994

Guzman, F S; Gonzalez, J A ^[1]

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1. Instituto de Fisica y Matematicas, Universidad Michoacana de San Nicolas de Hidalgo. Edificio C-3, Cd. Universitaria, 58040 Morelia, Michoacan (Mexico)

In this work we present an important feature of the Bose Einstein Condensate (BEC) dark matter model, that is, the head-on collision of BEC dark matter virialized structures. This model of dark matter is assumed to be ruled by the Schroedinger-Poisson system of equations, which is interpreted as the Gross-Pitaevskii equation with a gravitational potential sourced by the density of probability. It has been shown recently that during the collision of two structures a pattern formation in the density of probability appears. We explore the pattern formation for various initial dynamical conditions during the collision. In order to know whether or not the pattern formation is a particular property of the BEC dark matter, we compare with the collision of two structures of virialized ideal gas under similar dynamical initial conditions, which is a model more consistent with usual models of dark matter. In order to do so, we also solve Euler's equations using a smoothed particle hydrodynamics approach. We found that the collision of the ideal gas structures does not show interference patterns, which in turn implies that the pattern formation is a property of the BEC dark matter.

• OSTI ID: 21509994
• Journal Information: AIP Conference Proceedings, Vol. 1318, Issue 1; Conference: 4. Mexican meeting on experimental and theoretical physics, Mexico City (Mexico), 19-23 Jul 2010; Other Information: DOI: 10.1063/1.3531645; (c) 2010 American Institute of Physics; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
BLACK HOLES
BOSE-EINSTEIN CONDENSATION
COLLISIONS
COMPARATIVE EVALUATIONS
DENSITY
EQUATIONS
HYDRODYNAMICS
INTERFERENCE
NONLUMINOUS MATTER
POISSON EQUATION
PROBABILITY
SCHROEDINGER EQUATION
SIMULATION
DIFFERENTIAL EQUATIONS
EVALUATION
FLUID MECHANICS
MATTER
MECHANICS
PARTIAL DIFFERENTIAL EQUATIONS
PHYSICAL PROPERTIES
WAVE EQUATIONS