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  • Seminar: ‘Active Galactic Nuclei as Laboratories for Fundamental Physics’

    IFT Seminar Room/Red Room Instituto de Física Teórica (IFT) -C. Nicolás Cabrera, 13-15, Fuencarral-El Pardo, Madrid, Spain
    Scientific activities

    Speaker: Gonzalo Herrera (MIT & Harvard) Venue & Time: Red Room / 15:00 Abstract: The vicinity of supermassive black holes at the center of Galaxies represents one of the most extreme environments in the Universe. In Active Galactic Nuclei (AGN), intense gravitational fields, relativistic particle acceleration, strong magnetic fields, and dense ambient gas and radiation coexist in conditions […]

  • Pheno Journal Club: ‘How large can lepton mixing be?’

    Gray Room 3 Instituto de Física Teórica (IFT) -C. Nicolás Cabrera, 13-15, Fuencarral-El Pardo, Madrid, Spain
    Journal clubs

    Speaker: Sergio Rodríguez Benítez (IFT) Venue & Time: Grey Room 3 / 15:00 Abstract: We show that, contrary to common expectations, the observed charged leptons can have a substantial mixing with new heavier fermions, at the level of 20%. This can happen, in the language of effective theories, when the effect of mixing with heavier […]

  • GRASS Seminar: ‘Axions, Three-Forms, and M-Theory’

    IFT Seminar Room/Red Room Instituto de Física Teórica (IFT) -C. Nicolás Cabrera, 13-15, Fuencarral-El Pardo, Madrid, Spain
    Scientific activities

    Gravity, Supergravity and Superstrings (GRASS) Seminar Speaker: Ziqi Yan (Niels Bohr Institute, Denmark) Venue & Time: Red Room / 15:00 Abstract: Scalar fields with masses protected by global shift symmetries, commonly referred to as axions, are abundantly used in effective field theories in cosmology and particle physics. I will discuss a (4+1) dimensional braneworld construction […]

  • SPS Journal Club: ‘Exotic Branes and Symmetries of String Theory’

    IFT Seminar Room/Red Room Instituto de Física Teórica (IFT) -C. Nicolás Cabrera, 13-15, Fuencarral-El Pardo, Madrid, Spain
    Journal clubs

    Speaker: Andriana Makridou (IFT) Venue & Time: Red Room / 12:00 Abstract: Are duality transformations symmetries of string theory? For AdS space-time the answer is no for generic asymptotic values of the moduli, since the duality symmetry is broken explicitly in the dual conformal field theory. In contrast, in string theory in flat space-time, monodromy […]

  • Pheno Journal Club: ‘Bubble velocities in local equilibrium from a pseudopotential’

    Gray Room 3 Instituto de Física Teórica (IFT) -C. Nicolás Cabrera, 13-15, Fuencarral-El Pardo, Madrid, Spain
    Journal clubs

    Speaker: Eric Madge, IFT Venue&Time: 12:00 / Grey room 3 Abstract: We present a new method to estimate terminal bubble velocities during first-order phase transitions in a plasma in local equilibrium. The method relies on calculating the extrema of a modified potential function for the scalar field undergoing the transition. The shape of this function, […]

  • Seminar: ‘Dark Sector Karaoke: A 3D EFT for a Pitch-Perfect Phase Transition’

    IFT Seminar Room/Red Room Instituto de Física Teórica (IFT) -C. Nicolás Cabrera, 13-15, Fuencarral-El Pardo, Madrid, Spain
    Scientific activities

    Speaker: Cristina Puchades Ibáñez (University of Mainz) Venue & Time: Red Room / 15:00 Abstract: We explore the dynamics of cosmological phase transitions in a dark sector model featuring a dark photon associated with a U(1)D gauge symmetry and radiative symmetry breaking. Our analysis focuses on different approaches to construct the effective potential: the high-temperature […]

  • Cosmology Journal Club

    Discussion room 5th floor C. Nicolás Cabrera, 13-15, Fuencarral-El Pardo, Madrid, Madrid, Spain
    Journal clubs

    Every Tuesday at 2:00 PM in the discussion room on the 5th floor. Join the IFT cosmology/gravity journal club at benty-fields.com to vote for papers and volunteer to present them.

  • SPS Journal Club: ‘K-Points and Type IIB/Heterotic Duality with NS5-Branes’

    IFT Seminar Room/Red Room Instituto de Física Teórica (IFT) -C. Nicolás Cabrera, 13-15, Fuencarral-El Pardo, Madrid, Spain
    Journal clubs

    Speaker: Lorenzo Paoloni (IFT) Venue & Time: Red Room / 12:00 Abstract: We revisit type II_0 limits in the vector multiplet moduli space of compactifications of Type IIB string theory on Calabi-Yau threefolds. These limits are special because they cannot be described using mirror symmetry. While we showed in previous work that the gravitational duality […]

  • Pheno Journal Club

    Journal clubs

    Every Thursday at 12:00 in Grey Room 3.

  • Seminar: ‘Reviving PBHs: primordial black holes from supercooled phase transitions revisited’

    Scientific activities

    Speaker: Piotr Toczek (Warsaw University) Venue & Time: 15:00 / Red Room Abstract: Primordial black holes, hypothetical objects that may have formed in the early Universe through the interplay between high-energy physics and gravity, are very appealing candidates for dark matter. In this seminar, I will discuss their formation as a result of the collapse of […]

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