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PRODID:-//Instituto de Física Teórica - ECPv6.15.11//NONSGML v1.0//EN
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METHOD:PUBLISH
X-WR-CALNAME:Instituto de Física Teórica
X-ORIGINAL-URL:https://www.ift.uam-csic.es
X-WR-CALDESC:Events for Instituto de Física Teórica
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BEGIN:VTIMEZONE
TZID:Europe/Madrid
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TZOFFSETFROM:+0100
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DTSTART:20250330T010000
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TZNAME:CET
DTSTART:20251026T010000
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TZNAME:CEST
DTSTART:20260329T010000
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TZOFFSETTO:+0100
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DTSTART:20261025T010000
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DTSTART:20270328T010000
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BEGIN:VEVENT
DTSTART;TZID=Europe/Madrid:20260618T120000
DTEND;TZID=Europe/Madrid:20260618T130000
DTSTAMP:20260715T010725
CREATED:20260603T095532Z
LAST-MODIFIED:20260604T123328Z
UID:25147-1781784000-1781787600@www.ift.uam-csic.es
SUMMARY:Strings\, Pheno and the Swampland (SPS) Journal Club
DESCRIPTION:Every Thursday at 12:00 in the Red Room.
URL:https://www.ift.uam-csic.es/event/strings-pheno-and-the-swampland-sps-journal-club-4/
LOCATION:IFT Seminar Room/Red Room\, Instituto de Física Teórica (IFT) -C. Nicolás Cabrera\, 13-15\, Fuencarral-El Pardo\, Madrid\, 28049\,\, Spain
CATEGORIES:Scientific activities,Seminars
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Madrid:20260618T170000
DTEND;TZID=Europe/Madrid:20260618T180000
DTSTAMP:20260715T010725
CREATED:20260603T094731Z
LAST-MODIFIED:20260604T124507Z
UID:25140-1781802000-1781805600@www.ift.uam-csic.es
SUMMARY:Old Journal Club: 'Large scale perturbations in the open universe'
DESCRIPTION:Mikel Martin (IFT) will present “Large scale perturbations in the open universe”\, by  D. H.  Lyth\, &  A. Woszczyna\, \nVenue&Time: Blue Room / 17:00 \nAbstract:\nWhen considering perturbations in an open (Omega<1) universe\, cosmologists retain only sub-curvature modes (defined as eigenfunctions of the Laplacian whose eigenvalue is less than -1 in units of the curvature scale\, in contrast with the super-curvature modes whose eigenvalue is between -1 and 0). Mathematicians have known for almost half a century that all modes must be included to generate the most general HOMOGENEOUS GAUSSIAN RANDOM FIELD\, despite the fact that any square integrable FUNCTION can be generated using only the sub-curvature modes. The former mathematical object\, not the latter\, is the relevant one for physical applications. The mathematics is here explained in a language accessible to physicists. Then it is pointed out that if the perturbations originate as a vacuum fluctuation of a scalar field there will be no super-curvature modes in nature. Finally the effect on the cmb of any super-curvature contribution is considered\, which generalizes to Omega<1 the analysis given by Grishchuk and Zeldovich in 1978. A formula is given\, which is used to estimate the effect. In contrast with the case Omega=1\, the effect contributes to all multipoles\, not just to the quadrupole. It is important to find out whether it has the same l dependence as the data\, by evaluating the formula numerically.
URL:https://www.ift.uam-csic.es/event/old-journal-club/
LOCATION:Blue Room\, Instituto de Física Teórica (IFT) - C. Nicolás Cabrera\, 13-15\, Fuencarral-El Pardo\, Madrid\, 28049\,\, Spain
CATEGORIES:Journal clubs,Scientific activities
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Madrid:20260623T150000
DTEND;TZID=Europe/Madrid:20260623T160000
DTSTAMP:20260715T010725
CREATED:20260622T083902Z
LAST-MODIFIED:20260623T123818Z
UID:25286-1782226800-1782230400@www.ift.uam-csic.es
SUMMARY:Seminar: 'A hot take on electroweak skyrmions'
DESCRIPTION:Title: ‘A hot take on electroweak skyrmions’ \nSpeaker: Luis Gil (Universidad de Granada). \nVenue&Time: Red Room / 15:00 \nAbstract: Skyrmions are stable and topologically non-trivial field configurations that behave like localized particles. They appear in the chiral  effective theory for pions\, where they correspond to the baryon states\, and might also exist in the electroweak theory\, in the presence of certain effective interactions.\nIn this talk\, focusing on toy models that capture different limits of the electroweak sector of the Standard Model (SM)\, we will how skyrmions not classically stable at zero temperature can be stabilized by thermal effects. This motivates the study of skyrmions in the quantum effective action of the SM\, where they might constitute a dark matter candidate without new physics.
URL:https://www.ift.uam-csic.es/event/seminar-a-hot-take-on-electroweak-skyrmions/
LOCATION:IFT Seminar Room/Red Room\, Instituto de Física Teórica (IFT) -C. Nicolás Cabrera\, 13-15\, Fuencarral-El Pardo\, Madrid\, 28049\,\, Spain
CATEGORIES:Scientific activities,Seminars
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Madrid:20260624T113000
DTEND;TZID=Europe/Madrid:20260624T123000
DTSTAMP:20260715T010725
CREATED:20260618T075243Z
LAST-MODIFIED:20260618T075640Z
UID:25269-1782300600-1782304200@www.ift.uam-csic.es
SUMMARY:Quantum Information Journal Club: 'Efficient Characterisation of Quantum Information Processors'
DESCRIPTION:Speaker: Pablo Viñas Martínez (IFT) \nTítle: ‘Efficient Characterisation of Quantum Information Processors’ \nVenue&Time: Gray Room 1 / 11:30 \nAbstract: “The precise characterisation and benchmarking of quantum information processors (QIPs) is essential for the development of quantum technologies. From the engineering of low-error physical components to the design of physically informed decoding strategies in quantum error correction (QEC)\, a detailed understanding of noise plays a central role. However\, achieving an appropriate balance between the amount of information extracted and the experimental overhead required by characterisation protocols remains a significant challenge. In this talk\, I will explore several approaches aimed at addressing this trade-off. First\, I will discuss how the incorporation of physically motivated models can substantially reduce the resource requirements of quantum tomography protocols (https://arxiv.org/abs/2407.11539\, https://arxiv.org/abs/2507.02542). Second\, I will consider the problem from a complementary perspective: rather than focusing on the characterisation of fully general QIPs\, I will examine protocols tailored to the characterisation of QEC circuits.”
URL:https://www.ift.uam-csic.es/event/quantum-information-journal-club-efficient-characterisation-of-quantum-information-processors/
LOCATION:Gray Room 1\, Instituto de Física Teórica\, C/ Nicolás Cabrera 13-15\, Cantoblanco\, Madrid\, Madrid\, 28049\, Spain
CATEGORIES:Journal clubs,Scientific activities
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Madrid:20260625T113000
DTEND;TZID=Europe/Madrid:20260625T123000
DTSTAMP:20260715T010725
CREATED:20260618T075447Z
LAST-MODIFIED:20260618T075624Z
UID:25271-1782387000-1782390600@www.ift.uam-csic.es
SUMMARY:Quantum Information Journal Club: 'Some Properties of Local One-Dimensional Hamiltonians'
DESCRIPTION:Speaker: José Garre Rubio \nTítle: ‘Some Properties of Local One-Dimensional Hamiltonians’ \nVenue&Time: Gray Room 1 / 11:30 \nAbstract: In this talk\, I will discuss several properties of local Hamiltonians associated with the W state and matrix product states (MPS). I will begin by showing that the W state cannot be the unique ground state of any local Hamiltonian. I will then present a condition that guarantees that the parent Hamiltonian of an arbitrary MPS is well behaved\, encompassing the W-state case as an example. Finally\, I will characterize the action of local Hamiltonians on injective MPS\, an important class that describes unique ground states. Throughout the talk\, I will highlight several open problems and possible directions for future research. The results presented are based on [JGR\, Quantum Information Processing 24\, 366 (2025)]\, [JGR\, A. Turzillo\, A. Molnár\, Annales Henri Poincaré 1–23 (2025)]\, and [JGR\, A. Molnár\, N. Schuch\, F. Verstraete\, arXiv:2603.28349].
URL:https://www.ift.uam-csic.es/event/quantum-information-journal-club-some-properties-of-local-one-dimensional-hamiltonians/
LOCATION:Gray Room 1\, Instituto de Física Teórica\, C/ Nicolás Cabrera 13-15\, Cantoblanco\, Madrid\, Madrid\, 28049\, Spain
CATEGORIES:Journal clubs,Scientific activities
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Madrid:20260625T113000
DTEND;TZID=Europe/Madrid:20260625T123000
DTSTAMP:20260715T010725
CREATED:20260618T153939Z
LAST-MODIFIED:20260618T153939Z
UID:25281-1782387000-1782390600@www.ift.uam-csic.es
SUMMARY:Strings\, Pheno and the Swampland (SPS) Journal Club
DESCRIPTION:Speaker: Alberto Castellano (Chicago U.) \nVenue&Time: Red Room / 11:30
URL:https://www.ift.uam-csic.es/event/strings-pheno-and-the-swampland-sps-journal-club-5/
LOCATION:IFT Seminar Room/Red Room\, Instituto de Física Teórica (IFT) -C. Nicolás Cabrera\, 13-15\, Fuencarral-El Pardo\, Madrid\, 28049\,\, Spain
CATEGORIES:Journal clubs,Scientific activities
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Madrid:20260625T150000
DTEND;TZID=Europe/Madrid:20260625T160000
DTSTAMP:20260715T010725
CREATED:20260525T062834Z
LAST-MODIFIED:20260618T153338Z
UID:25093-1782399600-1782403200@www.ift.uam-csic.es
SUMMARY:Seminar: 'Differential observables for the Higgs-strahlung process to all orders in EFT'
DESCRIPTION:Title: ‘Differential observables for the Higgs-strahlung process to all orders in EFT.’ \nSpeaker: Sourav Bera from Tata Institute of Fundamental Research (TIFR) \nVenue&Time: Red Room / 15:00 \nAbstract: We develop methods to obtain the fully differential cross-section for the  f f \to Z(ll) h  process to any desired order in  effective field theory (EFT). To achieve this\, we first derive a mapping between the partial wave expansion and the EFT expansion  to all orders. We find that at lower orders\,  EFT predicts correlations between the different partial wave coefficients. This allows us to construct linear combinations of partial wave coefficients that get their leading contributions from a higher dimension EFT operator. We then introduce experimental observables\, the so called angular moments — that   probe these  linear combinations of partial wave coefficients — and can be determined from a fully differential analysis of the angular distribution of the leptons arising from the Z – decay. We show that  analysing the dependence of these angular moments on the Zh invariant mass allows us to systematically probe all higher dimension EFT operators contributing to this process. In particular\, we discuss how our results can be used to probe dimension-8 operators  in the Standard Model EFT (SMEFT). While we take  the Higgs-strahlung process as an example\, the methods developed here are completely general and can also be applied to other 2-to-2 collider processes.
URL:https://www.ift.uam-csic.es/event/seminar-by-sourav-bera/
LOCATION:IFT Seminar Room/Red Room\, Instituto de Física Teórica (IFT) -C. Nicolás Cabrera\, 13-15\, Fuencarral-El Pardo\, Madrid\, 28049\,\, Spain
CATEGORIES:Scientific activities,Seminars
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Madrid:20260702T150000
DTEND;TZID=Europe/Madrid:20260702T160000
DTSTAMP:20260715T010725
CREATED:20260603T095357Z
LAST-MODIFIED:20260629T103529Z
UID:25145-1783004400-1783008000@www.ift.uam-csic.es
SUMMARY:Seminar: 'NLO Running in the SMEFT'
DESCRIPTION:Title: ‘NLO Running in the SMEFT’ \nSpeaker: Lukas Born (University of Bern). \nVenue&Time: Red Room / 15:00 \nAbstract: The Standard Model Effective Field Theory (SMEFT) provides a systematic framework for parameterizing heavy new physics in a model-independent way. A central ingredient for precision analyses within this framework is the renormalization group equations (RGEs)\, governing the running of the Wilson coefficients across energy scales. Our recent computation of the two-loop β-functions in the SMEFT marks a milestone in this program\, opening the door to genuine next-to-leading order (NLO) analyses. \nIn this talk\, I will first discuss the key technical challenges we encountered in our calculation\, how we addressed them by modifying the Warsaw basis\, and the consistency checks on our results. Second\, I will turn to a concrete phenomenological application\, demonstrating that NLO running effects play an important role in Electroweak Precision Observables (EWPO).
URL:https://www.ift.uam-csic.es/event/seminar-by-lukas-born/
LOCATION:IFT Seminar Room/Red Room\, Instituto de Física Teórica (IFT) -C. Nicolás Cabrera\, 13-15\, Fuencarral-El Pardo\, Madrid\, 28049\,\, Spain
CATEGORIES:Scientific activities,Seminars
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Madrid:20260707T150000
DTEND;TZID=Europe/Madrid:20260707T170000
DTSTAMP:20260715T010725
CREATED:20260624T084812Z
LAST-MODIFIED:20260702T111259Z
UID:25291-1783436400-1783443600@www.ift.uam-csic.es
SUMMARY:Seminar: 'Sub-GeV Dark Matter\, Neutrino Masses\, and Astrophysical Signals from a Rich Dark Sector'
DESCRIPTION:Title: ‘Sub-GeV Dark Matter\, Neutrino Masses\, and Astrophysical Signals from a Rich Dark Sector.’ \nSpeaker: Elina Merkel (University of Bologna) \nVenue&Time: Red Room / 15:00 \nAbstract: Rich dark sectors provide an attractive framework for addressing several puzzles in particle physics and cosmology within a single model. In this talk\, I will present a simple sub-GeV dark-sector realization featuring a dark matter candidate\, a light scalar mediator\, and an extended neutrino sector. I will show how the model can reproduce the observed relic abundance\, generate light neutrino masses\, and satisfy cosmological constraints. I will then discuss its phenomenological implications\, focusing on neutrino signals that could be probed by current and future neutrino telescopes.
URL:https://www.ift.uam-csic.es/event/seminar-sub-gev-dark-matter-neutrino-masses-and-astrophysical-signals-from-a-rich-dark-sector/
LOCATION:Madrid
CATEGORIES:Scientific activities,Seminars
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Madrid:20260709T150000
DTEND;TZID=Europe/Madrid:20260709T160000
DTSTAMP:20260715T010725
CREATED:20260525T063643Z
LAST-MODIFIED:20260702T081635Z
UID:25095-1783609200-1783612800@www.ift.uam-csic.es
SUMMARY:Seminar: ‘The Hunt for Multiple Axions’
DESCRIPTION:Title: ‘The Hunt for Multiple Axions’ \nSpeaker: Arturo de Giorgi (University of Durham). \nVenue&Time: Red Room / 15:00 \nAbstract: Axions and axion-like particles may arise in Nature as a spectrum rather than as a single field. Such a scenario naturally emerges in string-inspired constructions\, as well as in reasonably simple bottom-up extensions of single axion models. In such multi-axion scenarios\, new signal features arise\, and recasting of existing experimental bounds from single-axion constraints becomes generally non-trivial. This motivates a closer look at how laboratory axion searches are impacted when multiple states contribute. In this talk\, I will first briefly introduce bulk axions in extra dimensions as a concrete framework that naturally generates multiple modes\, and highlight some of the phenomenological subtleties that follow. I will then present general results for multi-axions–photon oscillations\, showing how coherence and interference can either enhance or suppress signals\,  with direct implications for light-shining-through-a-wall experiments and beyond.
URL:https://www.ift.uam-csic.es/event/seminar-by-arturo-de-giorgi/
LOCATION:IFT Seminar Room/Red Room\, Instituto de Física Teórica (IFT) -C. Nicolás Cabrera\, 13-15\, Fuencarral-El Pardo\, Madrid\, 28049\,\, Spain
CATEGORIES:Scientific activities,Seminars
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Madrid:20260914T150000
DTEND;TZID=Europe/Madrid:20260914T160000
DTSTAMP:20260715T010725
CREATED:20260617T110657Z
LAST-MODIFIED:20260617T110657Z
UID:25210-1789398000-1789401600@www.ift.uam-csic.es
SUMMARY:Seminar by Damir Becirevic
DESCRIPTION:TBA
URL:https://www.ift.uam-csic.es/event/seminar-by-damir-becirevic/
LOCATION:IFT Seminar Room/Red Room\, Instituto de Física Teórica (IFT) -C. Nicolás Cabrera\, 13-15\, Fuencarral-El Pardo\, Madrid\, 28049\,\, Spain
CATEGORIES:Scientific activities,Seminars
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Madrid:20261015T150000
DTEND;TZID=Europe/Madrid:20261015T160000
DTSTAMP:20260715T010725
CREATED:20260617T105750Z
LAST-MODIFIED:20260617T105750Z
UID:25206-1792076400-1792080000@www.ift.uam-csic.es
SUMMARY:IFT Colloquium by Mark Srednicki (UC Santa Barbara)
DESCRIPTION:TBA
URL:https://www.ift.uam-csic.es/event/ift-colloquium-by-mark-srednicki-uc-santa-barbara/
LOCATION:Madrid
CATEGORIES:Colloquia,Scientific activities
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Madrid:20261019T150000
DTEND;TZID=Europe/Madrid:20261019T160000
DTSTAMP:20260715T010725
CREATED:20260617T110552Z
LAST-MODIFIED:20260617T110552Z
UID:25208-1792422000-1792425600@www.ift.uam-csic.es
SUMMARY:Seminar by Mark Srednicki
DESCRIPTION:TBA
URL:https://www.ift.uam-csic.es/event/seminar-by-mark-srednicki/
LOCATION:IFT Seminar Room/Red Room\, Instituto de Física Teórica (IFT) -C. Nicolás Cabrera\, 13-15\, Fuencarral-El Pardo\, Madrid\, 28049\,\, Spain
CATEGORIES:Scientific activities,Seminars
END:VEVENT
END:VCALENDAR