Extremal states for photon number and quadratures as gauges for nonclassicality

Rotated quadratures carry the phase-dependent information of the electromagnetic field, so they are somehow conjugate to the photon number. We analyze this noncanonical pair, finding an exact uncertatinty relation, as well as a couple of weaker inequalities obtained by relaxing some restrictions of the problem. We also find the intelligent states saturating that relation and complete their characterization by considering extra constraints on the second-order moments of the variables involved. Using these moments, we construct performance measures tailored to diagnose photon-added and Schr\"odinger catlike states, among others.Comment: 6 pages, 4 color figures. Comments welcome

La inclusión en los centros educativos y el aprendizaje de todos los alumnos

El presente Trabajo de Fin de Grado, se centra en el enfoque inclusivo de la escuela, su objetivo principal es indagar sobre las bases teóricas de la inclusión en un centro educativo, centrándome en el aprendizaje dialógico como medida igualitaria que facilite la inclusión. El trabajo se divide en varios apartados que explican dicho contenido y para ello, he realizado un marco teórico sobre la educación inclusiva, clarificando términos como diversidad, igualdad e inclusión, como influyen todos ellos dentro de un mismo aula, cuáles son los factores que influyen en la diversidad y cuáles son las formas de integración teniendo en cuenta los entornos. Más adelante, aparece el soporte político sobre la inclusión, sobre los derechos humanos, según las normas Internacionales. En otro apartado, destaco algunos modelos internacionales emergentes inclusivos, que se han puesto en marcha en distintos países y en numerosos centros infantiles, teniendo resultados favorables sobre el éxito escolar, como son las Comunidades de Aprendizaje, Success for All, School Development Program, Escuelas Ciudadanas y Coalition of Essentials School. Posteriormente, incluyo como medida inclusiva dentro de un centro escolar, el aprendizaje dialógico junto con los principios que se deben seguir para que este se lleve a cabo y cuáles son los beneficios de este enfoque inclusivo. En el penúltimo apartado, he creado una Unidad didáctica desde un enfoque inclusivo, teniendo en cuenta el contexto, los objetivos y contenidos didácticos que quiero trabajar, varias actividades dirigidas a familias, niños, profesorado y voluntarios. Para finalizar, incluyo unos criterios de evaluación de la Unidad Didáctica. Por último, he mostrado unas conclusiones propias sobre el Trabajo de Fin de Grado.Grado en Educación Infanti

Unpolarized states and hidden polarization

We capitalize on a multipolar expansion of the polarisation density matrix, in which multipoles appear as successive moments of the Stokes variables. When all the multipoles up to a given order $K$ vanish, we can properly say that the state is $K$th-order unpolarized, as it lacks of polarization information to that order. First-order unpolarized states coincide with the corresponding classical ones, whereas unpolarized to any order tally with the quantum notion of fully invariant states. In between these two extreme cases, there is a rich variety of situations that are explored here. The existence of \textit{hidden} polarisation emerges in a natural way in this context.Comment: 7 pages, 3 eps-color figures. Submitted to PRA. Comments welcome

Didactic strategies in creativity based on experiental learning

En esta experiencia educativa se utiliza el aprendizaje experiencial como estrategia didáctica relacionada con los conceptos de provocación, foco e idea propuestos en Pensamiento Lateral (De Bono, 1994); de igual modo en lo referido a la técnica SCAMPER. Se plantean los roles pertinentes al profesor y los estudiantes, como también los contenidos y contextos requeridos (Medina y Salvador, 2002). Los resultados obtenidos indican que se facilita la enseñanza y el aprendizaje; en términos de auto – construcción de contenidos creativos, ejemplos relacionados con la experiencia personal de cada estudiante, identificación de la necesidad de otros conceptos y observación de las propias capacidades creativas. También se posibilita una mejor transferencia a otros dominios administrativos donde se requiera creatividad. Las aplicaciones fueron realizadas con estudiantes universitarios de administración de empresas, específicamente en el tema de desarrollo de ideas creativas de nuevos productosOn this educational experience, it is used experiential learning as a didactic strategy related with the provocation, focus and ideas concepts proposed in Lateral Thinking (De Bono, 1994); so as referred in the SCAMPER technique. Suggesting roles related to both teacher and student, so as the contents and contexts required (Medina and Salvador, 2002). The results obtained indicate that teaching and learning can be done easier; in terms of selfconstruction of creative content, examples related to the student’s personal perspective, identification of the need of other concepts and inspection of the own creative capacities. It also allows a better transfer to the other management dominion where the creativity is required. The applications were done with college students from business management, specifically on the subject of development of creative ideas for new product

Analysis of the effect of mobile terminal speed on WLAN/3G vertical handovers

Proceedings of IEEE Global Telecommunications Conference, GLOBECOM '06, San Francisco, California, 27 november - 1 december, 2006.WLAN hot-spots are becoming widely spread. This, combined with the availability of new multi-mode terminals integrating heterogeneous technologies, opens new business opportunities for mobile operators. Scenarios in which 3G coverage is complemented by WLAN deployments are becoming available. Thus, true all-IP based networks are ready to offer a new variety of services across heterogeneous access. However, to achieve this, some aspects still need to be analyzed. In particular, the effect of the terminal speed on the detection and selection process of the preferred access network is not yet well understood. In fact, efficiency of vertical handovers depends on the appropriate configuration of mobile devices. In this paper we present a simulation study of handover performance between 3G and WLAN access networks showing the impact of mobile users’ speed. The mobile devices are based on the IEEE 802.21 cross layer architecture and use WLAN signal level thresholds as handover criteria. A novel algorithm to dynamically adjust terminals’ configuration is presented.Publicad

Comparison of Inheritance Evaluation Algorithms for Express Edition 3.

Information exchanged between computer applications is difficult, thus the need for data exchange standards. The ISO STEP project defines data exchange standards using the EXPRESS language, which supports inheritance. Currently there are two algorithms used to evaluate an inheritance hierarchy: the Test and Generate algorithms. In this thesis, enhancements are made to both algorithms to support the Total Over Constraint, which is proposed for the third edition of EXPRESS. A formal algorithm is derived for the Test algorithm. The two enhanced algorithms are compared and shown to be result equivalent. However, it is shown that the Test algorithm is the more efficient of the two

Design and Experimental Evaluation of a Route Optimisation Solution for NEMO

An important requirement for Internet protocol (IP) networks to achieve the aim of ubiquitous connectivity is network mobility (NEMO). With NEMO support we can provide Internet access from mobile platforms, such as public transportation vehicles, to normal nodes that do not need to implement any special mobility protocol. The NEMO basic support protocol has been proposed in the IETF as a first solution to this problem, but this solution has severe performance limitations. This paper presents MIRON: Mobile IPv6 route optimization for NEMO, an approach to the problem of NEMO support that overcomes the limitations of the basic solution by combining two different modes of operation: a Proxy-MR and an address delegation with built-in routing mechanisms. This paper describes the design and rationale of the solution, with an experimental validation and performance evaluation based on an implementation.Publicad