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: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
BEGIN:DAYLIGHT
TZOFFSETFROM:+0100
TZOFFSETTO:+0200
TZNAME:CEST
DTSTART:20270328T010000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:+0200
TZOFFSETTO:+0100
TZNAME:CET
DTSTART:20271031T010000
END:STANDARD
END:VTIMEZONE
BEGIN:VEVENT
DTSTART;TZID=Europe/Madrid:20261013T113000
DTEND;TZID=Europe/Madrid:20261013T123000
DTSTAMP:20261013T010637
CREATED:20261007T110148Z
LAST-MODIFIED:20261007T110148Z
UID:25822-1791891000-1791894600@www.ift.uam-csic.es
SUMMARY:Holo-Club: Lanczos Meets Orthogonal Polynomials
DESCRIPTION:Title: Lanczos Meets Orthogonal Polynomials \nSpeaker: Le-Chen Qu \nVenue & Time: 11:30 / Red Room \nAbstract: In this talk\, I will explain the connection between the Lanczos algorithm and orthogonal polynomials and its application to spread complexity in large-$N$ random matrix models. The three-term recurrence relation for orthogonal polynomials has the same structure as the Lanczos recursion\, allowing the polynomial recursion coefficients to be identified with the Lanczos coefficients. For an infinite-temperature thermofield double state\, equations for these coefficients follow from the Coulomb-gas equation. In one-cut matrix models\, the Lanczos coefficients approach constants at large Krylov index\, leading to linear growth of spread complexity at late times. A Bloch-wave analysis expresses the asymptotic growth rate as a spectral average of the group velocity. For even potentials\, differences between consecutive squared Lanczos coefficients also admit a geometric interpretation as generating functions for planar maps whose marked legs are separated by a fixed geodesic distance. Quartic matrix models and the double-scaled SYK model illustrate these results. The talk concludes with the large-index asymptotics of recursion coefficients for general polynomial potentials and the gradient catastrophe that appears in the continuum limit of asymmetric models. \n 
URL:https://www.ift.uam-csic.es/event/holo-club-lanczos-meets-orthogonal-polynomials/
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:20261013T140000
DTEND;TZID=Europe/Madrid:20261013T150000
DTSTAMP:20261013T010637
CREATED:20261005T074009Z
LAST-MODIFIED:20261005T074202Z
UID:25813-1791900000-1791903600@www.ift.uam-csic.es
SUMMARY:Cosmology Journal Club
DESCRIPTION:Every Tuesday at 2:00 PM in the discussion room on the 5th floor.\n\nJoin the IFT cosmology/gravity journal club at benty-fields.com to vote for papers and volunteer to present them \n 
URL:https://www.ift.uam-csic.es/event/cosmology-journal-club-31/
LOCATION:Discussion room 5th floor\, C. Nicolás Cabrera\, 13-15\, Fuencarral-El Pardo\, Madrid\, Madrid\, 28049\, Spain
CATEGORIES:Journal clubs,Scientific activities
END:VEVENT
END:VCALENDAR