Effect of Magnetization Inhomogeneity on Magnetic Microtraps for Atoms

We report on the origin of fragmentation of ultracold atoms observed on a permanent magnetic film atom chip. A novel technique is used to characterize small spatial variations of the magnetic field near the film surface using radio frequency spectroscopy of the trapped atoms. Direct observations indicate the fragmentation is due to a corrugation of the magnetic potential caused by long range inhomogeneity in the film magnetization. A model which takes into account two-dimensional variations of the film magnetization is consistent with the observations.Comment: 4 pages, 4 figure

Grupo criminoso e método de grupo de cometer um crime no direito penal Russo

In this work the current state of institute of partnership in crime based on the analysis of statistical data which demonstrates to existence of problematic issues in definition of the concepts "criminal group", "group way of commission of crime", "partnership" that affects law-enforcement practice is considered.It is necessary to recognize the increased public danger of the crimes committed by several persons as in such cases the criminal result is a consequence of the combined efforts of two and more persons. At the same time, at qualification of the crimes committed with use of a group way there are problems of their legal treatment at their commission, both within partnership, and beyond its limits.Carrying out short historical digression in development of institute of partnership in the existing criminal legislation, analyzing opinions of scientists concerning differentiation of the concepts "criminal group", "group way of commission of crime", "partnership", the author of article proves need of development of the concept "group way of commission of crime" - by legislative fixing of this concept of the criminal legislation of the Russian Federation. For the purpose of improvement of institute of partnership, entering of corresponding changes into the Russian criminal legislation is offered.En este trabajo, el estado actual del instituto de asociación en delitos se basa en el análisis de datos estadísticos que demuestran la existencia de cuestiones problemáticas en la definición de los conceptos "grupo criminal", "forma grupal de comisión de delitos", "asociación" que afecta Se considera la práctica policial.Es necesario reconocer el aumento del peligro público de los delitos cometidos por varias personas, ya que, en tales casos, el resultado penal es una consecuencia de los esfuerzos combinados de dos o más personas. Al mismo tiempo, en la calificación de los delitos cometidos con el uso de forma grupal, existen problemas de su tratamiento legal en su comisión, tanto dentro de la asociación como más allá de sus límites.Realizando una breve digresión histórica en el desarrollo del instituto de asociación en la legislación penal existente, analizando las opiniones de los científicos sobre la diferenciación de los conceptos "grupo criminal", "forma grupal de comisión de delitos", "sociedad", el autor del artículo demuestra su necesidad del desarrollo del concepto "forma grupal de comisión de delitos" - mediante la fijación legislativa de este concepto de la legislación penal de la Federación de Rusia. Con el fin de mejorar el instituto de asociación, se ofrece la introducción de los cambios correspondientes en la legislación penal rusa.En este trabajo, o estado atual do instituto de associação em delitos se basea na análise de dados estaduais que demoliu a existência de questões problemáticas na definição dos conceitos "grupo criminal", "forma grupal de comisión de delitos", "asociación "que afeta Se considera a prática policial.O primeiro e último incidente sobre o aumento do público dos delitos cometidos pelas pessoas, é que, em alguns casos, o resultado penal é uma conseqüência dos esforços combinados de todos os personagens. Al mismo tempo, na calificación dos delitos cometidos com o uso de forma grupal, existido problemas de tratamento legal em sua comutação, dentro da associação como mais todos os seus direitos.Realizando uma breve digestão sobre o desenvolvimento do instituto de associação na legislação penal, analisando as opiniões dos cientistas sobre a diferenciação dos conceitos "grupo criminal", "forma grupal de comunicação de delitos", "sociedade", o autor Del nuestra des demolière des necesidad del desarrollo del concepto "forma grupal de comisión de delitos" - mediante a legislação fijación del concepto de la legislación penal de la Federación de Rusia. Con el fin de mejorar el instituto de associación, se de re ce la introducción de los cambios correspondents en la legislación penal rusa

Condensate splitting in an asymmetric double well for atom chip based sensors

We report on the adiabatic splitting of a BEC of $^{87}$Rb atoms by an asymmetric double-well potential located above the edge of a perpendicularly magnetized TbGdFeCo film atom chip. By controlling the barrier height and double-well asymmetry the sensitivity of the axial splitting process is investigated through observation of the fractional atom distribution between the left and right wells. This process constitutes a novel sensor for which we infer a single shot sensitivity to gravity fields of $\delta g/g\approx2\times10^{-4}$. From a simple analytic model we propose improvements to chip-based gravity detectors using this demonstrated methodology.Comment: 4 pages, 5 figure