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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:VEVENT
DTSTART;TZID=Europe/Madrid:20260625T113000
DTEND;TZID=Europe/Madrid:20260625T123000
DTSTAMP:20260625T032533
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
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BEGIN:VEVENT
DTSTART;TZID=Europe/Madrid:20260625T113000
DTEND;TZID=Europe/Madrid:20260625T123000
DTSTAMP:20260625T032533
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:20260625T032533
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
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