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  • SPS Journal Club: ‘Probing the Rigidity of String Theory’

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

    Speaker: Georgina Staudt (Max Planck Institute Munich) Venue&Time: Red Room / 12:00 Abstract: We investigate the deformability of the Veneziano amplitude. If string theory is the unique theory of quantum gravity, the tree level amplitudes of weak coupling limits should be non-deformable. We make progress in this direction for tachyon-free superstring theories by deriving a […]

  • DIFT Colloquium: ‘Gamma Ray Bursts, Cosmic Rays and the Sociology of Science’

    AULA POLIVALENTE UAM Plaza Mayor Campus de Cantoblanco UAM. C. Einstein, 7, Fuencarral-El Pardo, 28049 Madrid, Madrid, Madrid, Spain
    Coloquios

    Speaker: Álvaro de Rújula from IFT & CERN Venue & Time: Aula Polivalente UAM Abstract: Gamma-Ray Bursts (GRBs) and Cosmic Rays (CRs) are not difficult to comprehend. Quasars and micro-quasars are seen to emit highly relativistic “Cannonballs” (CBs), though the underlying mechanism remains unfathomable. The observation that core-collapse supernovae also emit CBs —plus some trivial […]

  • Old Journal Club: ‘Renormalization and Effective Lagrangians’

    Blue Room Instituto de Física Teórica (IFT) - C. Nicolás Cabrera, 13-15, Fuencarral-El Pardo, Madrid, Spain
    Clubs científicos

    Pau Garcia Romeu (IFT) will present Renormalization and Effective Lagrangians by Joseph Polchinski. Venue&Time: Blue Room / 17:00 Abstract: There is a strong intuitive understanding of renormalization, due to Wilson, in terms of the scaling of effective lagrangians. We show that this can be made the basis for a proof of perturbative renormalization. We first […]

  • Open String Axiverse

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

    Speaker: Giovanni Villadoro from ICTP Venue & Time: Red Room / 15:00 Abstract: Localized charged fields are a general feature of many realistic string compactifications. I will review how in four dimensions they can lead to a multitude of perturbatively-exact global symmetries that, when spontaneously broken, generate a new axiverse compatible with post-inflationary evolutions.  

  • Cosmology Journal Club

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

    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.

  • Pheno Journal Club: Coherently enhanced decoherence and cloud substructure of atom interferometers

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

    Speaker: Pablo Blanco Mas (IFT) Venue & Time: Grey Room 3 / 15:00 Abstract: We study how coherent scattering of a background gas off an atom (or other matter) interferometer can lead to enhanced signals from phase shifts and contrast loss. We focus on the inclusion of realistic features of atom interferometers such as finite temperature, […]

  • Bubble wall dynamics from nonequilibrium quantum field theory

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

    Speaker: Matthias Carosi from Munich, Tech. U. Venue & Time: Red Room / 15:00 Abstract: First-order phase transitions in the early universe are a unique probe of physics beyond the Standard Model, with potential implications for electroweak baryogenesis, the formation of primordial black holes, magnetogenesis and the production of dark matter. Upcoming gravitational wave detectors may […]

  • Old Journal Club: S. W. Hawking, Black holes and thermodynamics

    Blue Room Instituto de Física Teórica (IFT) - C. Nicolás Cabrera, 13-15, Fuencarral-El Pardo, Madrid, Spain
    Clubs científicos

    Christian Aoufia (IFT) will present S. W. Hawking, Black holes and thermodynamics, Phys. Rev. D, vol. 13, no. 2, pp. 191–197, 1976. doi: 10.1103/PhysRevD.13.191 Venue & Time: Blue Room / 17:00 Abstract: The concept of entropy is examined with an eye toward gaining insight into the nature of black-hole thermodynamics. Definitions of entropy are given for […]

  • Axion Physics

    Gray Room 1 Instituto de Física Teórica, C/ Nicolás Cabrera 13-15, Cantoblanco, Madrid, Madrid, Spain
    Seminarios

    Speaker: Giovanni Villadoro from ICTP Venue&Time: Grey Room 1 / 11:00 Abstract: Recent years have seen an increased interest in the phenomenology of the QCD axion and axion dark matter. In this lecture, I will review astrophysical and experimental bounds on axions, as well as the basics of axion detection experiments.

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