BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Instituto de Física Teórica - ECPv6.15.11//NONSGML v1.0//EN
CALSCALE:GREGORIAN
METHOD:PUBLISH
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
REFRESH-INTERVAL;VALUE=DURATION:PT1H
X-Robots-Tag:noindex
X-PUBLISHED-TTL:PT1H
BEGIN:VTIMEZONE
TZID:Europe/Madrid
BEGIN:DAYLIGHT
TZOFFSETFROM:+0100
TZOFFSETTO:+0200
TZNAME:CEST
DTSTART:20240331T010000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:+0200
TZOFFSETTO:+0100
TZNAME:CET
DTSTART:20241027T010000
END:STANDARD
BEGIN:DAYLIGHT
TZOFFSETFROM:+0100
TZOFFSETTO:+0200
TZNAME:CEST
DTSTART:20250330T010000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:+0200
TZOFFSETTO:+0100
TZNAME:CET
DTSTART:20251026T010000
END:STANDARD
BEGIN:DAYLIGHT
TZOFFSETFROM:+0100
TZOFFSETTO:+0200
TZNAME:CEST
DTSTART:20260329T010000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:+0200
TZOFFSETTO:+0100
TZNAME:CET
DTSTART:20261025T010000
END:STANDARD
END:VTIMEZONE
BEGIN:VEVENT
DTSTART;TZID=Europe/Madrid:20251016T110000
DTEND;TZID=Europe/Madrid:20251016T120000
DTSTAMP:20260405T202256
CREATED:20251013T085555Z
LAST-MODIFIED:20251125T081258Z
UID:23315-1760612400-1760616000@www.ift.uam-csic.es
SUMMARY:Machine Learning and AI Journal Club
DESCRIPTION:Venue&Time: Grey Room 1
URL:https://www.ift.uam-csic.es/event/machine-learning-and-ai-journal-club/
LOCATION:Gray Room 1\, Instituto de Física Teórica\, C/ Nicolás Cabrera 13-15\, Cantoblanco\, Madrid\, Madrid\, 28049\, Spain
CATEGORIES:Journal clubs,Scientific activities
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Madrid:20251016T120000
DTEND;TZID=Europe/Madrid:20251016T130000
DTSTAMP:20260405T202256
CREATED:20251009T103032Z
LAST-MODIFIED:20251125T081258Z
UID:23288-1760616000-1760619600@www.ift.uam-csic.es
SUMMARY:SPS Journal Club: 'Probing the Rigidity of String Theory'
DESCRIPTION:Speaker: Georgina Staudt (Max Planck Institute Munich) \n\nVenue&Time: Red Room / 12:00 \n\nAbstract: 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 general positivity bound and excluding some specific families of deformations.
URL:https://www.ift.uam-csic.es/event/sps-journal-club-probing-the-rigidity-of-string-theory/
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:20251016T170000
DTEND;TZID=Europe/Madrid:20251016T180000
DTSTAMP:20260405T202256
CREATED:20251010T103553Z
LAST-MODIFIED:20251125T081257Z
UID:23294-1760634000-1760637600@www.ift.uam-csic.es
SUMMARY:Old Journal Club: 'Renormalization and Effective Lagrangians'
DESCRIPTION:Pau Garcia Romeu (IFT) will present Renormalization and Effective Lagrangians by Joseph Polchinski.\n\nVenue&Time: Blue Room / 17:00\n\nAbstract:\n\nThere 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 study renormalizability in the language of renormalization group flows for a toy renormalization group equation. We then derive an exact renormalization group equation for a four-dimensional λø 4 theory with a momentum cutoff. We organize the cutoff dependence of the effective lagrangian into relevant and irrelevant parts\, and derive a linear equation for the irrelevant part. A lengthy but straightforward argument establishes that the piece identified as irrelevant actually is so in perturbation theory. This implies renormalizability. The method extends immediately to any system in which a momentum-space cutoff can be used\, but the principle is more general and should apply for any physical cutoff. Neither Weinberg’s theorem nor arguments based on the topology of graphs are needed.\n\nMore info: https://inspirehep.net/literature/189574
URL:https://www.ift.uam-csic.es/event/old-journal-club-renormalization-and-effective-lagrangians/
LOCATION:Blue Room\, Instituto de Física Teórica (IFT) - C. Nicolás Cabrera\, 13-15\, Fuencarral-El Pardo\, Madrid\, 28049\,\, Spain
CATEGORIES:Journal clubs,Scientific activities
ATTACH;FMTTYPE=image/png:https://www.ift.uam-csic.es/wp-content/uploads/2025/10/OJC_Pau.png
END:VEVENT
END:VCALENDAR