Dissertation
PhD Dissertation | Miguel Fernández Gómez: The light meson guide to New Physics: Latest searches of rare decays using LHCb data
Supervisors: Xabier Cid Vidal, Diego Martínez Santos |
Seminar
$B_s to mu\\\\mu gamma$ as a partly reconstructed decay: from the Standard Model prediction and New-Physics sensitivity, to a search at the LHCb experiment
A major challenge in modern particle physics is the search for signals beyond the Standard Model (SM), our current theory of the particle world. A series of recent experimental results, collectively known as the "b-anomalies" (named after the quark involved in these decays), have shown deviations from their theoretical predictions within the framework of the SM, indicating the potential presence of new laws of physics. To investigate these anomalies, two approaches are being pursued. The first approach aims to improve the precision of theoretical predictions and experimental measurements for already known phenomena, while the second approach seeks to identify new decay channels that are sensitive to the same signals of new physics. This talk focuses on the second approach by studying the decay of a $B_s$ meson into two muons and a photon. A primary task presented here is a re-appraisal of the so-called "b-anomalies", followed by the description of the $B_s to mu\\\\mu gamma$ observable as a potential probe of these anomalies. However, measuring this decay poses a significant challenge due to the low energy of the photon. Therefore, a preliminary study of a method of partial reconstruction of the final state based solely on the two muons is presented at the LHCb experiment at the Large Hadron Collider (LHC) at CERN. |
Seminar
Temporal entanglement and tensor network methods for quantum dynamics
The dynamics of quantum many-body systems is one of the traditionally most challenging problems to study for classical simulators. Recently, however, the development of novel methodologies based on the concept of temporal entanglement has opened the way to a series of new results, allowing to access dynamical properties of quantum systems with efficient classical algorithms, such as transverse contraction methods for tensor networks.
In this talk, I will review the ideas behind these novel methods, and the properties of the generalized temporal entanglement which can be introduced in this context. In particular, I will discuss its relation to the computational complexity of the time evolution of expectation values of quantum many-body systems, and show how conformal field theory can provide predictions for its scaling close to criticality in different setups such as return probabilities. If time allows, I will also discuss a possible way to measure this novel type of entanglement using currently available technologies.
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Conference
IGFAE Retreat 2025
Link to Indico: https://indico.global/event/14958/ |
Conference
Presentación das Residencias ArtLab IGFAE
O IGFAE e a Fundación Cidade da Cultura de Galicia únense para convocar as Residencias ArtLab IGFAE, unha iniciativa que ten o obxectivo de seleccionar un proxecto artístico relacionado coa investigación realizada no IGFAE, explorando formas alternativas de comunicación coa arte e a sociedade. As Residencias ArtLab IGFAE están abertas a persoas ou colectivos relacionados co contexto da arte contemporánea galega, en todo tipo de medios artísticos (pintura, escultura, fotografía, artes de acción, arte obxectual, arte sonora, arte en rede, arte interactiva, arte participativa, entre outras). As propostas deberán abrirse ás novas perspectivas no campo da arte, da ciencia, da tecnoloxía e da sociedade, ben a través dunha obra totalmente nova ou da ampliación dunha obra en curso. O salón de actos do IGFAE acolle o acto de presentación, no que participarán o secretario xeral de Cultura da Xunta de Galicia, Anxo Lorenzo; a directora xerente da Fundación Cidade da Cultura de Galicia; Ana Isabel Vázquez; a vicerreitora de Estudantes e Cultura da USC, Pilar Murias; e o director do IGFAE, Carlos Salgado. |
Dissertation
PhD Dissertation | Juan Ammerman Yebra: Transition radiation in high energy showers
Directors: Enrique Zas Arregui, Jaime Álvarez Muñiz |
Conference
IGFAE Official Inauguration
The President of the Xunta de Galicia, Alfonso Rueda Valenzuela, and the Chancellor of the University of Santiago de Compostela, Antonio López Díaz, will attend the inauguration ceremony of the new headquarters of the IGFAE The event will begin at 12:00 noon. |
Seminar
New insights into quantum error correction via the coherent information: optimal thresholds and erasure errors
Quantum error correction (QEC) protects quantum information by adding redundancies that help detect and correct errors. Understanding the limitations of QEC under different noise sources is crucial for the development of fault-tolerant quantum computers. In this talk, I will address the challenge of determining the fundamental (optimal) error correction thresholds of QEC codes using the coherent information (CI) of the mixed-state density matrix associated with these codes. This new approach allows us to obtain accurate optimal thresholds from small-sized codes (PRR L042014, 2024) and study optimal thresholds under erasure errors and computational errors together in a rigorous manner (arXiv:2412.16727). I will also discuss how this approach to fundamental thresholds has led to new insights at the interface of quantum information, condensed matter physics, and statistical mechanics and its potential application to problems in the context of the AdS/CFT correspondance.
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Seminar
Tech Transfer Day at IGFAE
In the framework of TechLab programme, IGFAE organises on 16 June a special knowledge transfer day in collaboration with Insight Gravity, an entity specialised in the valorisation and commercialisation of scientific results. During the session, several IGFAE teams will present their projects following a common structure that facilitates analysis and debate. The activity will include short presentations, spaces for questions and discussion, as well as a coffee-networking to encourage the exchange of ideas. The main objective is to identify opportunities for technology transfer and to receive concrete recommendations on next steps for each project. Programme:
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Seminar
YoctoLHC | Project meeting
Full programme here: https://indico.global/event/14968/ |
