BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//GRK 2905 - Ultrafast Nanoscopy - ECPv6.15.20//NONSGML v1.0//EN
CALSCALE:GREGORIAN
METHOD:PUBLISH
X-ORIGINAL-URL:https://grk2905.de
X-WR-CALDESC:Events for GRK 2905 - Ultrafast Nanoscopy
REFRESH-INTERVAL;VALUE=DURATION:PT1H
X-Robots-Tag:noindex
X-PUBLISHED-TTL:PT1H
BEGIN:VTIMEZONE
TZID:Europe/Berlin
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/Berlin:20251202T141500
DTEND;TZID=Europe/Berlin:20251202T151500
DTSTAMP:20260610T111121
CREATED:20251106T152233Z
LAST-MODIFIED:20260326T162238Z
UID:1845-1764684900-1764688500@grk2905.de
SUMMARY:RTG Colloquium:Prof. Dr. Jim Freericks
DESCRIPTION:How to describe pump-probe experiments in quantum materialsGeorgetown University\, Washington\, USA \n\n\n\n \n\n\n\nI will describe both the challenges\, and how to address them\, when theoretically modelling ultrafast pump-probe experiments in strongly correlated materials and in materials with strong electron-phonon coupling. After providing an introduction\, I will focus on three case studies: (i) examining the response at picosecond times of charge-density waves with ultrashort pulses that drive the electrons; (ii) examining the response on femtosecond times for nonresonant electronic Raman scattering; and (iii) examining how one can measure correlated charge dynamics in f-electronsystems using x-ray photoemission spectroscopy and x-ray absorption spectroscopy. \n\n\n\n \n\n\n\n \n\n\n\nVenue: H34
URL:https://grk2905.de/event/grk-colloquium-prof-dr-jim-freericks-2/
CATEGORIES:Colloquium
ATTACH;FMTTYPE=image/jpeg:https://grk2905.de/wp-content/uploads/2025/11/Jim_freericks.jpeg
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20251204T151500
DTEND;TZID=Europe/Berlin:20251204T161500
DTSTAMP:20260610T111121
CREATED:20251120T130908Z
LAST-MODIFIED:20260326T162312Z
UID:1858-1764861300-1764864900@grk2905.de
SUMMARY:RTG Seminar:Assistant Professor Ipsita Mandal
DESCRIPTION:Detectable signatures of topology of the bandstructures in 3d semimetalsShiv Nadar Institution of Eminence (SNIoE)\, India \n\n\n\n \n\n\n\nWe will elucidate the nature of the linear-response tensors in planar-Hall and planar-thermal-Hall set-ups\, where we subject a 3d semimetal (harbouring nodal points of topological nature) to the combine influence of an electric field (and/or temperature gradient) and a weak (i.e. non-quantising) magnetic field. We will explain why it is essential to include the effects of the intrinsic orbital magnetic moment of the wavepackets in conjunction with the Berry curvature\, in order to obtain a holistic picture of the effects of topology of the Brillouin zone in the linear-response tensors. Going beyond the well-studied example of Weyl semimetals\, we will discuss the cases of their multifold cousins\, harbouring higher Chern numbers. We will highlight how we can compute the exact solutions from the Boltzmann equations\, which gets rid of the often-inaccurate results of the naive relaxation-time approximation. Finally\, we will outline how to derive surface states\, in the form of Fermi arcs\, characterising generic nodal points. \n\n\n\n \n\n\n\nVenue: PHY 5.0.21
URL:https://grk2905.de/event/grk-seminar-assistant-professor-ipsita-mandal/
ATTACH;FMTTYPE=image/jpeg:https://grk2905.de/wp-content/uploads/2025/11/Mandal-Ipsita.jpg
END:VEVENT
END:VCALENDAR