Cross-Phase Modulation Enhancement Via a Resonating Cavity: Semiclassical Description

We evaluate the advantages of performing cross-phase modulation (XPM) on a very-far-off-resonance atomic system. We consider a ladder system with a weak (few-photon level) control coherent field imparting a conditional nonlinear phase shift on a probe beam. We find that by coupling to an optical resonator the optimal XPM is enhanced proportional to the finesse of the resonator by a factor of $F/4\pi$. We present a semi-classical description of the system and show that the phenomenon is optimal in the self-defined condition of off-resonance-effective-cooperativity equal to one

Practical Advantages of Almost-Balanced-Weak-Values Metrological Techniques

Precision measurements of ultra-small linear velocities of one of the mirrors in a Michelson interferometer are performed using two different weak-values techniques. We show that the technique of Almost-Balanced Weak Values (ABWV) offers practical advantages over the technique of Weak-Value Amplification (WVA), resulting in larger signal-to-noise ratios and the possibility of longer integration times due to robustness to slow drifts. As an example of the performance of the ABWV protocol we report a velocity sensitivity of 60 fm/s after 40 hours of integration time. The sensitivity of the Doppler shift due to the moving mirror is of 150 nHz

Application of the principle of opportunity in terms allowed by the law 1453 of 2011

Con una justicia fracasada en los términos de la Ley 906 de 2004, la cual ha tenido innumerables reformas, es necesario definir y analizar los términos para acusar, y los aumentos en tiempo para solicitar las audiencias, frente al caso de aplicación del principio de oportunidad en el caso de las reformas traídas por la Ley 1312 de 2009 y la 1453 de 2011, por lo tanto, es preciso establecer si el término legal de 90 días establecido en el artículo 175 del Código de Procedimiento Penal al que hace referencia el juez en desarrollo del control formal es o no preclusivo para la aplicación del principio de oportunidad, porque este lapso ha generado confusión para los operadores judiciales.With a failed justice in terms of Act 906 of 2004, which has had countless reforms, it is necessary to define and analyze the terms to accuse, and increases in time to request hearings, compared to the case of the principle of opportunity in the case of the amendments brought by Law 1312 of 2009, 2011 and 1453, therefore, it is necessary to establish whether the legal limit of 90 days laid down in Article 175 of the Criminal Procedure Code referenced by the judge in development of formal control or not preclusive to the principle of

Application of the principle of opportunity in terms allowed by the law 1453 of 2011

Con una justicia fracasada en los términos de la Ley 906 de 2004, la cual ha tenido innumerables reformas, es necesario definir y analizar los términos para acusar, y los aumentos en tiempo para solicitar las audiencias, frente al caso de aplicación del principio de oportunidad en el caso de las reformas traídas por la Ley 1312 de 2009 y la 1453 de 2011, por lo tanto, es preciso establecer si el término legal de 90 días establecido en el artículo 175 del Código de Procedimiento Penal al que hace referencia el juez en desarrollo del control formal es o no preclusivo para la aplicación del principio de oportunidad, porque este lapso ha generado confusión para los operadores judiciales.With a failed justice in terms of Act 906 of 2004, which has had countless reforms, it is necessary to define and analyze the terms to accuse, and increases in time to request hearings, compared to the case of the principle of opportunity in the case of the amendments brought by Law 1312 of 2009, 2011 and 1453, therefore, it is necessary to establish whether the legal limit of 90 days laid down in Article 175 of the Criminal Procedure Code referenced by the judge in development of formal control or not preclusive to the principle of

Technical advantages for weak value amplification: When less is more

The technical merits of weak value amplification techniques are analyzed. We consider models of several different types of technical noise in an optical context and show that weak value amplification techniques (which only use a small fraction of the photons) compare favorably with standard techniques (which uses all of them). Using the Fisher information metric, we demonstrate that weak value techniques can put all of the Fisher information about the detected parameter into a small portion of the events and show how this fact alone gives technical advantages. We go on to consider a time correlated noise model, and find that a Fisher information analysis indicates that while the standard method can have much larger information about the detected parameter than the postselected technique. However, the estimator needed to gather the information is technically difficult to implement, showing that the inefficient (but practical) signal-to-noise estimation of the parameter is usually superior. We also describe other technical advantages unique to imaginary weak value amplification techniques, focusing on beam deflection measurements. In this case, we discuss combined noise types (such as detector transverse jitter, angular beam jitter before the interferometer and turbulence) for which the interferometric weak value technique gives higher Fisher information over conventional methods. We go on to calculate the Fisher information of the recently proposed photon recycling scheme for beam deflection measurements, and show it further boosts the Fisher information by the inverse postselection probability relative to the standard measurement case

Smartwatch-Based User Monitoring for Human-Robot Interaction

In the era of modern technologies such as the one we live in, there are several medical alert systems present in hospitals and in households. However, most of thesesystems present a faulty physical design, an unfriendly interface with users, or they are too expensive for the service that they offer. Inmy bachelor’swork, I explain how an efficient, low-cost design and implementation of a medical alert system can be achieved, and can be used for the everyday life. I focus mainly on three things: drastically reducing the cost compared to competitors in the field, improving the effectiveness of the device when it’s needed, and adapting the software to be inter- operable and available to practically any robot anywhere in the world.En la era de las tecnologías modernas como en la que vivimos actualmente, ex- isten muchos sistemas de alerta médica que se pueden encontrar tanto en hospitales como en las casas. Sin embargo, la mayoría de estos sistemas están afectados por un diseño físico incorrecto, una interfaz poco cómoda con los usuarios, o simple- mente son demasiado caros para el servicio que ofrecen. En mi trabajo de fin de grado, explico cómo se puede desarrollar un sistema de alerta médico a través de un diseño e implementaciones eficientes y de bajo coste; para poder ser usado en la vida diaria. Me centro principalmente en tres cosas: reducir el coste del sistema drásticamente respecto a los competidores en la industria, mejorar la efectividad del dispositivo cuando se necesita, y adaptar el software para que éste sea interoperable y esté disponible para ser usadoprácticamente en cualquier robot en cualquier lugar del mundo.Ingeniería Informátic

La improvisación como medio de expresión musical en el aula: proyecto didáctico en el segundo ciclo de educación infantil

En este Trabajo de Fin de Grado se reflexiona sobre la importancia de la improvisación musical en la Educación Infantil, mediante la realización de una propuesta de intervención pedagógica que parte de la Pedagogía de Creación Musical (PCM). Para ello, se realizan diversas actividades que abarcan cuatro bloques; voz, cuerpo, escucha y cuerpos sonoros, con el fin de desarrollar la imaginación y la creatividad del alumnado. Estarán inspiradas principalmente en las propuestas pedagógico-musicales de François Delalande y Monique Frapat. Finalmente, se pretende mostrar la posibilidad de trabajar la música desde una perspectiva diferente a la tradicional en la Educación Infantil, que logrará que el niño pueda explorar y experimentar de forma lúdica, convirtiéndose así en el principal protagonista del proceso educativo.ABSTRACT This Final Degree Project reflects about the importance of the musical improvisation in Preschool Education, by a pedagogical intervention proposal that starts from the Pedagogy of Musical Creation (PCM). To that end, several activities have been realized that comprise four blocks; voice, body, listening and sound bodies, in order to develop student’s imagination and creativity. They will be inspired mainly by the François Delalande’s and Monique Frapat’s pedagogical-musical proposals. Finally, the aim is to show the possibility of work the music from a different perspective than the traditional one in Pre-school Education, that will enable the child to explore and experiment playfully, becoming the main protagonist of the educational process.Grado en Educación Infanti

Complementary weak-value amplification with concatenated postselections

We measure a transverse momentum kick in a Sagnac interferometer using weak-value amplification with two postselections. The first postselection is controlled by a polarization dependent phase mismatch between both paths of a Sagnac interferometer and the second postselection is controlled by a polarizer at the exit port. By monitoring the darkport of the interferometer, we study the complementary amplification of the concatenated postselections, where the polarization extinction ratio is greater than the contrast of the spatial interference. In this case, we find an improvement in the amplification of the signal of interest by introducing a second postselection to the system

Can Anomalous Amplification be Attained Without Postselection?

We present a parameter estimation technique based on performing joint measurements of a weak interaction away from the weak-value-amplification approximation. Two detectors are used to collect full statistics of the correlations between two weakly entangled degrees of freedom. Without the need of postselection, the protocol resembles the anomalous amplification of an imaginary-weak-value-like response. The amplification is induced in the difference signal of both detectors allowing robustness to different sources of technical noise, and offering in addition the advantages of balanced signals for precision metrology. All of the Fisher information about the parameter of interest is collected, and a phase controls the amplification response. We experimentally demonstrate the proposed technique by measuring polarization rotations in a linearly polarized laser pulse. The effective sensitivity and precision of a split detector is increased when compared to a conventional continuous-wave balanced detection technique