Conference
Data Science in Fundamental Physics and the bridge to industry
Data Science is the art of analyzing data sets to find correlations, causal relations, patterns; build hypothesis, assign significances to them, assess the efficiency of an algorithm of finding a signal probability of false positives, assess the efficiencies of finding a signal. Define control samples, simulate and replicate the reality according to a model. Access, store, retrieve data, moderate or extremely large data-sets (Big Data); create automatic tools that take decisions,….. Data analysis within high energy physics and astroparticle physics is Data Science. The event (to be held in Santiago de Compostela from June 3 to 7, 2024) aims to show to students, PhDs and young post-docs that coming to fundamental physics is an career opportunity with huge synergies with the job market and the needs of modern society. This event would be made of a school with courses on data science currently used in HEP (High Energy Physics) and astroparticle physics and a symposium where different companies present their current trends, needs and daily work related to Data Science. This event also intends to find interlocutors for establishing communication channels with the industry that allow to explore partnerships and joint projects, to compete for international grants, and also to show the capabilities of IGFAE and (Astro) Particle Physics in general in the field of Data Science. This event will facilitate bringing together the two sides and create the framework to enlarge mutual knowledge of daily work, allowing to create practical synergies from Data Science in fundamental physics into Data Science in industry. |
Outreach
Visita do CPR Plurilingüe La Merced
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Conference
Towards Relativity: Einstein and His Compass
Speaker: Sudipta Sarkar (Indian Institute of Technology, Gandhinagar). Abstract: The advent of special relativity resulted from intense scientific thinking spanning several decades. The history of relativity begins with the strive to understand motion, inertia, and light, which finally led to the Einsteinian revolution in 1905. In this seminar, I attempt to summarize the rich history of the theory of special relativity; the emphasis would be to discuss the contributions of several physicists and mathematicians and the uniqueness of the approach taken by Einstein. |
Outreach
Visita do Colexio San José de la Guía
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Seminar
Towards a non-perturbative description of cosmological inflation
Cosmological inflation is one of the leading paradigm in modern cosmology, It does not only provides a dynamical explanation for the homogeneity and isotropy of the universe on large scales, but it also predicts the generation of primordial cosmological perturbations, originating from quantum fluctuations of fields, which generate the observed perturbations e.g. in the cosmic microwave background (CMB). Although these perturbations are usually assumed to be very small, there are very important phenomenological consequences if we allow them to grow during inflation, such as the generation of Primordial Black Holes (PBHs), a candidate for Dark Matter. In this talk I will explore different inflationary scenarios in which quantum fluctuations can grow, why non-perturbative effects can be important in these cases and how we can consistently study them. |
Seminar
Emergence of hydrodynamics in expanding plasmas: attractors and fixed points
One of the important features that emerges from the analysis of ultra-relativistic heavy ion collisions is that the produced matter can be remarkably well described by relativistic fluid dynamics. Much work has been devoted recently towards understanding why such a description works so well, in particular at early times where the produced matter is supposed to be far from equilibrium. In this talk, I shall address such issues within the framework of kinetics theory. I shall consider a simple set of equations that govern the expansion of boost-invariant plasmas of massless particles. These equations describe the early time, collisionless regime, and the transition to hydrodynamics at late time. These two regimes are associated to two fixed points of the underlying dynamical equations, which are connected by the so-called "hydrodynamic attractor". I shall argue that the success of second order hydrodynamics à la Israel Stewart has nothing to do with an "improvement" of hydrodynamics at early time, but is due to a subtle property of the Israel-Stewart equations that effectively mimic the collisionless regime. Profile: Jean-Paul Blaizot received his PhD in 1977 from the University of Paris and was awarded a permanent research position at CNRS, the largest governmental research organization in France. He has been Directeur de recherche emeritus at CNRS since 2014. |
Seminar
Beyond the black hole paradigm: Stability of ultracompact objects.
Abstract: In general relativity, black hole solutions are defined by the existence of an event horizon—an irreversible causal boundary. In addition to the conventional black hole paradigm, Ultracompact Objects without a horizon have been proposed as an alternative. However, these alternative models frequently face numerous theoretical difficulties. This presentation delves into the question of stability of ultracompact objects and explores potential observable signatures. |
Conference
Taller de Computación de Inspiración Cuántica
TalentQ, La iniciativa de formación del proyecto Quantum Spain, celebrará en la Facultad de Física de la USC los días 16, 23 de febrero y 1 de marzo un taller sobre aplicación de tecnologías cuánticas, mediante casos prácticos relevantes a nivel industrial. El taller consta de 3 sesiones los dias 16 y 23 de febrero y 1 de marzo de 2024, en horario de 15 a 19 horas. La Computación Cuántica permitirá, cuando esté lo suficientemente madura, abordar problemas cuya complejidad escala exponencialmente y, por tanto, quedan fuera del alcance de la computación clásica. Mientras se avanza en la construcción de ordenadores cuánticos con tamaño y niveles de ruido aceptable, es necesario abordar casos de uso reales de interés en la industria que pongan a prueba los algoritmos que se han propuesto para su resolución. Existen soluciones de inspiración cuántica que permiten resolver problemas de optimización combinatoria de forma muy eficiente, a través de algoritmia inspirada en ciertos fenómenos existentes en la mecánica cuántica, pero que corre en hardware clásico sin las dificultades existentes en los ordenadores cuánticos actuales. La formulación de problemas de optimización con tecnología de inspiración cuántica constituye un primer paso hacia la implementación efectiva de la Computación Cuántica, ya que permite explorar aplicaciones para esta tecnología en problemas de reales que no son abordables hoy en día con un computador cuántico actual. Una vez la tecnología cuántica esté lo suficientemente madura, la migración del problema a un computador cuántico sería inmediata. El curso consta de tres sesiones que combinan introducción teórica y talleres prácticos donde se resolverán problemas reales de interés en la industria. Para la realización de los talleres será necesario traer el ordenador portátil e instalar ciertos paquetes de software que se indicarán, para ejecutar en modo local. Los talleres serán presenciales (con cupo limitado), con la opción de seguimiento en línea para quienes no obtengan plaza presencial. FECHAS IMPORTANTES:
Requisitos:
Cronograma: 16 de febrero de 15 a 19hrs: Sesión 1 23 de febrero de 15 a 19hrs: Sesión 2 1 de marzo de 15 a 19hrs: Sesión 3 *Nota: Para el seguimiento en streaming se publicará un enlace el mismo día de los cursos. |
Conference
Masterclass: física de partículas coas mans 2024
O IGFAE organiza un ano máis en Santiago de Compostela a Masterclass Internacional Física de Partículas coas mans, dirixida ao alumnado de 2º de bacharelato de Galicia con interese na física e no mundo da investigación. En 2024, a cita terá lugar o venres 1 de marzo. A xornada ten por obxectivo achegar o día a día da investigación en física de partículas, visibilizar o traballo punteiro que se desenvolve dende Santiago de Compostela e espertar futuras vocacións científicas entre o alumnado. A masterclass consistirá nunha serie de conferencias sobre física de partículas, ademais dunha práctica en grupos de identificación de eventos ‒colisións de partículas‒ cuxos resultados serán discutidos mediante videoconferencia co CERN e con outros institutos europeos que organizan simultaneamente unha xornada idéntica. Próximamente, máis información sobre inscricións e programa da actividade. |
Seminar
A bootstrap approach to cosmology
Abstract: The correlations that we observe in the distribution of matter and radiation in the Universe can be traced back to correlations of inflationary primordial perturbations. The cosmological bootstrap is an approach that attempts to compute these primordial objects without making explicit reference to the inflationary time evolution; the strategy is to fix the correlators directly at the time slice where they reside by demanding them to be compatible with fundamental principles like symmetries, locality and unitarity. This method has generated an important amount of theoretical data relevant for future observations and has provided new insights into the physics of inflation and de Sitter space. In this talk, I will present an overview of the cosmological bootstrap, including the most recent developments and some promising future directions. |