From hecap at ictp.it Tue Jul 1 07:46:17 2025 From: hecap at ictp.it (HECAP - Margherita Di Giovannantonio) Date: Tue, 1 Jul 2025 07:46:17 +0200 Subject: REMINDER - High Energy Physics Seminar TODAY (Rudra) Message-ID: *_HIGH ENERGY PHYSICS SEMINARS_**__* *Tuesday, 01 July *2025, at *16:00* - *Luigi Stasi Seminar Room **- https://indico.ictp.it/event/11071/* * * Arnab Rudra (IISER Bhopal) *?Tree Level Scattering of Bosonic Higher Spin Particles"* * * _Abstract_ In this talk, we will discuss tree-level scattering of two massless and two massive particles with arbitrary integer spin (Compton Scattering). The amplitude plays an important role in gravitational wave physics.? We discuss the contributions of exchange diagrams and the role of contact terms. To join via Zoom: https://zoom.us/j/96404751775 Meeting ID: 964 0475 1775 Passcode: 493417 From infopoint at ictp.it Tue Jul 1 11:42:48 2025 From: infopoint at ictp.it (Infopoint) Date: Tue, 1 Jul 2025 11:42:48 +0200 Subject: QLS Seminar - Friday 4 July at 11h00 - "A Complex Systems Physics Framework for Cortical States: From E/I Balance to Emergent Oscillations" by Nima Dehghani (MIT) In-Reply-To: <0cc5c9dd-5d09-48cd-98f1-b36afc2aecdb@ictp.it> References: <0cc5c9dd-5d09-48cd-98f1-b36afc2aecdb@ictp.it> Message-ID: Dear All, On Friday, 4 July? at 11:00 CET, Dr. Nima Dehghani - Center for Brain, Minds, & Machines,? (MIT) will give a seminar titled: *"A Complex Systems Physics Framework for Cortical States: From E/I Balance to Emergent Oscillations**" *_Abstract: _Understanding the complex dynamics of excitation and inhibition within the cortex offers crucial insights into neural ensemble behavior across multiple states, from wakefulness to sleep. By leveraging tools from dynamical systems and analogies from statistical physics, this body of work explores the spatiotemporal balance between excitation and inhibition, highlighting how these dynamics contribute to both local and global cortical activity patterns. The observed symmetry breaking at critical moments, reminiscent of phase transitions in physical systems, underscores the sensitivity of cortical networks to small perturbations, which can cascade into larger-scale oscillations and state changes. High-frequency oscillations, including beta and gamma rhythms, emerge from this intricate interplay and propagate systematically across the cortex. These oscillations are especially prominent during slow-wave sleep, where they likely play a role in cognitive functions such as memory consolidation. By integrating ensemble analyses across different behavioral states?wakefulness, sleep, and transitions?this research illuminates how excitation and inhibition orchestrate the neocortex?s ability to dynamically balance stability and flexibility, driving fundamental processes such as oscillatory rhythms and coordinated network activity. This work not only advances our understanding of the neural processes underlying normal cortical function but also offers insights into pathological conditions, such as seizures, where this balance is disrupted. These findings bridge the gap between neural biophysics and large-scale functional dynamics, offering a fresh perspective on how cortical states self-organize through emergent, multiscale processes. References: ??????? 1. Symmetry?s Edge in Cortical Dynamics: Multiscale Dynamics of Ensemble Excitation and Inhibition (https://arxiv.org/html/2306.11965v4) ??????? 2. Ensemble Inhibition and Excitation in the Human Cortex: An Ising-model Analysis with Uncertainties (https://journals.aps.org/pre/abstract/10.1103/PhysRevE.99.032408) ??????? 3. Dynamic Balance of Excitation and Inhibition in Human and Monkey Neocortex (https://www.nature.com/articles/srep23176) ??????? 4. High-frequency Oscillations in Human and Monkey Neocortex During the Wake?Sleep Cycle (https://www.pnas.org/doi/abs/10.1073/pnas.1523583113) ??????? 5. Spatiotemporal Dynamics of Neocortical Excitation and Inhibition During Human Sleep (https://www.pnas.org/doi/full/10.1073/pnas.1109895109) * The seminar will take place in the _Common area, Old SISSA building, second floor - Via Beirut, 2__ _ * You are all most welcome to attend! Best regards, Erica Erica Sarnataro Group Secretary Quantitative Life Sciences The Abdus Salam International Centre for Theoretical Physics (ICTP) Trieste, Italy Tel. +39-040-2240623 www.ictp.it/research/qls.aspx e-mail:qls at ictp.it From smr4084 at ictp.it Tue Jul 1 12:47:01 2025 From: smr4084 at ictp.it (ICTP Youth in High-Dimensions: Recent Progress in Machine Learning, High-Dimensional Statistics and Inference & How creative is Generative AI? Perspectives from Science and Philosophy) Date: Tue, 1 Jul 2025 12:47:01 +0200 Subject: SMR4084 - Programme & Preliminary List of Participants ready on the Indico page Message-ID: <4fc88bed-8af6-470a-9024-c4b9366e79e9@ictp.it> Dear All, We are pleased to inform you that the Programme and the Preliminary List of Participants of the "Youth in High-Dimensions: Recent Progress in Machine Learning, High-Dimensional Statistics and Inference & How creative is Generative AI? Perspectives from Science and Philosophy" (3 - 10 July 2025), are ready on the Indico page: [ https://indico.ictp.it/event/10849/other-view?view=ictptimetable ] Thank you. Kind regards, Viktoriya -- Viktoriya Lvova SMR4084 - Secretariat Youth in High-Dimensions: Recent Progress in Machine Learning, High-Dimensional Statistics and Inference & How creative is Generative AI? Perspectives from Science and Philosophy (3 - 10 July 2025) ICTP - The Abdus Salam International Centre for Theoretical Physics Strada Costiera 11 I-34151 Trieste Italy Tel.: +39 040 2240 4135 (ext. 4135) E-mail:smr4084 at ictp.it Indico page:https://indico.ictp.it/event/10849 ICTP web page:www.ictp.it From dagueroc at sissa.it Tue Jul 1 14:39:16 2025 From: dagueroc at sissa.it (Dan Anibal Aguero Cerna) Date: Tue, 1 Jul 2025 12:39:16 +0000 Subject: (Generalised) Complex Geometry seminar Message-ID: Dear all, the next (Generalised) Complex Geometry seminar will be on Thursday, 03 July at 14:00 in room 136 (SISSA). Speaker: Gil Cavalcanti (Utrecht University) Title: T-duality from circles to spheres and beyond. Abstract: I will introduce the definition and basic properties of usual abelian T-duality and present extensions to sphere bundles and more general fibrations. See you there, Dan Jacopo