DATA: 07-11-2017

Seminario di Riccardo Argurio (ULB) Abstract: Symmetry breaking, both spontaneous and explicit, will be approached using Ward identities as the main tool. We will first recall how Ward identities encode the spectrum of gapless, or nearly gapless modes (a.k.a. Goldstone bosons), emphasizing when UV or IR data is needed. We then proceed to consider the holographic perspective on this problem. We will discuss (a selection of) several models: a global U(1) symmetry,including the ambiguous case of two boundary dimensions; the simultaneous breaking of translations and scale invariance; supersymmetry breaking; models where Lorentz invariance is absent, such as in presence of a chemical potential or for theories with Lifshitz scaling. In all these cases we will first reproduce the expected Ward identities, and then try to go beyond and determine interesting IR data.


09-12-2019: Visita ai laboratori della Sezione INFN di Trieste da parte di studenti del Liceo Scientifico dell' IIS Cattaneo-Dall'Aglio di Castelnovo ne' Monti (RE)
09-12-2019: Properties of nuclei in the N=Z=50 region investigated via multi-nucleon transfer reactions and lifetime measurements - Marco Siciliano
06-12-2019: From kaonic atoms to strangeness in neutron stars
05-12-2019: M. Gromov - Updated results of the geo-neutrino observation with the Borexino detector
05-12-2019: A scuola di radioattivita'
04-12-2019: La fisica incontra la cittą - L'arte ed i suoi segreti: la fisica per svelarli
04-12-2019: Nuclei per l'ambiente
04-12-2019: A. Melchiorri - A crisis in lalalambda land?
02-12-2019: MariX: Conceptual Design Report of a Multi-disciplinary Advanced Research Infrastructure for the generation and application of X-rays
28-11-2019: Quantum Optical Control of Levitated Solids: a novel probe for the gravity-quantum interface





Istituto Nazionale di Fisica Nucleare - Piazza dei Caprettari, 70 - 00186 Roma
tel. +39 066840031 - fax +39 0668307924 - email:

F.M. F.E.