Name: Seminar: ‘Cosmological Magnetic Fields from Ultralight Dark Matter’
Start: 2026-03-05T15:00:00+01:00
End: 2026-03-05T17:00:00+01:00
Location: IFT Seminar Room/Red Room

February 2026
February 25 | 11:30 - 12:30

Quantum Information Journal Club: ‘Generalizing the framework of translationally invariant MPS’

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

Journal clubs

Speaker: Marta Florido Llinás (MPQ) Title: 'Generalizing the framework of translationally invariant MPS' Abstract: In this talk I will present our recent work on developing a canonical form for uniform matrix product states (MPS) with a boundary matrix (https://www.arxiv.org/abs/2512.11968). Starting from the standard canonical description of uniform MPS with periodic boundary conditions, I will explain […]
February 26 | 11:00 - 12:00

GRASS Seminar: ‘Gravitational Duality at the Lightring, QNM isospectrality, and Ringdown Nonlinearities from Penrose Limits’

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: David Pereñiguez (Johns Hopkins U.) Title: 'Gravitational Duality at the Lightring, QNM isospectrality, and Ringdown Nonlinearities from Penrose Limits' Abstract: At high frequencies, the physics near a black hole’s lightring can be captured by Penrose-limit plane waves adapted to the photon sphere. In this talk, I will solve […]
February 26 | 12:00 - 13:00

SPS Journal Club: ‘Anomaly-induced vanishing of brane partition functions’

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

Journal clubs

Strings, Pheno and the Swampland Journal Club (SPS) Speaker: Michelangelo Tartaglia (IFT) Title: 'Anomaly-induced vanishing of brane partition functions' Abstract: In the presence of 't Hooft anomalies, backgrounds for the symmetries of a quantum field theory can lead to non-conservation of Noether currents, or more generally, to the presence of charged insertions in the path […]
February 26 | 12:00 - 13:00

Pheno Journal Club

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

Journal clubs

Every Thursday at 12:00 in Grey Room 3.
February 26 | 15:00 - 16:00

Seminar: ‘Sub-PeV gamma-ray astronomy and its physics’

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

Scientific activities

Title: 'Sub-PeV gamma-ray astronomy and its physics' Speaker: Sei Kato (Sorbonne Université, Institut d'Astrophysique de Paris) Venue&Time: Red Room / 15:00 Abstract: This talk will focus on the physics that can be explored with sub-PeV gamma-ray astronomy (E > 10^14 eV), particularly on the Galactic diffuse gamma rays and the dark matter. Also, our project […]
February 26 | 17:00 - 18:00

Old Journal Club: ‘Generalized Global Symmetries’

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

Journal clubs

Miquel Aparici Domingo (IFT) will present Generalized Global Symmetries by Davide Gaiotto, Anton Kapustin, Nathan Seiberg, Brian Willett, JHEP 02 (2015) 172 Abstract: A q-form global symmetry is a global symmetry for which the charged operators are of space-time dimension q, e.g. Wilson lines, surface defects, etc., and the charged excitations have q spatial dimensions, e.g. […]
March 2026
March 2 | 15:00 - 16:00

Seminar: ‘The tensions of LCDM: An update of observations and theoretical implications’

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

Scientific activities

Title: 'The tensions of LCDM: An update of observations and theoretical implications' Speaker: Leandros Perivolaropoulos (Ioannina) Venue&Time: Red Room / 15:00 Abstract: The standard LCDM cosmological model, despite its success in describing the large-scale structure of the Universe, is currently challenged by statistically significant discrepancies between early and late-universe observations. In this talk, I provide […]
March 3 | 10:00 - 19:00

II Jornadas sobre Arte Sonoro “Rebecca Collins”

Outreach events

El 26 de junio de 2024 falleció Rebecca Louise Collins (1982-2024), artista sonora, investigadora de la escucha y comisaria de proyectos relacionados con la música experimental, cuya labor intelectual y creativa ha dejado una huella profunda e imborrable en el ámbito del arte sonoro contemporáneo. Tras la celebración de las primeras jornadas en noviembre de […]
March 3 | 11:30 - 13:00

Holo Club: ‘Brick wall Normal Modes and Emerging Thermality’

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

Journal clubs

Speaker: Suman Das (IFT) Title: 'Brick wall Normal Modes and Emerging Thermality' Venue & Time: Gray Room 1 / 11:00 Abstract: arXiv:2401.01417 The ’t Hooft brick wall model provides one of the earliest microscopic derivations of the black-hole area law within the probe approximation of quantum field theory in curved spacetime. In this talk, I […]
March 5 | 15:00 - 17:00

Seminar: ‘Cosmological Magnetic Fields from Ultralight Dark Matter’

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

Scientific activities

Title: Cosmological Magnetic Fields from Ultralight Dark Matter Speaker: Robert Brandenberger (McGill) Venue&Time: Red Room / 15:00 Abstract: A coherently oscillating ultralight dark matter field which couples to electromagnetism in the same way as an axion induces a tachyonic instability which leads to the generation of cosmological magnetic fields immediately after the time of recombination. […]