QUEST - QUantum matErials for Sustainable Technologies

Probing condensates' coherence by time-resolved ARPES: From superconductors to excitonic insulators

Not scheduled

30m

Sala Giambiagi (Adriatico Guesthouse, ICTP, Trieste, Italy)

Invited Oral

Speaker

Andrea Damascelli (UBC)

Description

With its direct correspondence to the electronic structure, angle-resolved photoemission spectroscopy (ARPES) is a ubiquitous tool for the study of quantum materials. When ex-tended to the temporal domain, time-resolved ARPES offers the potential to move beyond equilibrium properties, exploring both the unoccupied electronic structure as well as its dy-namical response under ultrafast perturbation [1]. In this talk, I will discuss how time-resolved ARPES can probe the coherence of many-body condensates, from high-temperature superconductivity [2,3], to spin-correlation-driven pseudogap [4], and ex-citonic insulating behavior [5].

[1] F. Boschini, M. Zonno, A. Damascelli, Rev. Mod. Phys. 96, 015003 (2024).
[2] F. Boschini et al., Nature Materials 17, 416 (2018).
[3] M. Zonno, F. Boschini, A. Damascelli, JESRP 251, 147091 (2021).
[4] F. Boschini et al., npj Quantum Materials 5, 6 (2020).
[5] D. Golez et al., Phys. Rev. B 106, L121106 (2022).