Real-time flow of excitation inside a material with attosecond core-level soft X-ray spectroscopy

Abstract

Attosecond core-level soft X-ray spectroscopy is shown to image the energy conversion pathways between photons, charge carriers and lattice in real time in graphite.

A Jaynes-Cummings-Fano Model for Autoionizing Polaritons

“…Attosecond pump-probe spectroscopy has emerged as a useful tool for probing and controlling ultrafast electronic dynamics in atoms [1][2][3][4][5][6][7][8][9][10][11][12][13][14], molecules [15][16][17][18][19][20][21][22], and condensed matter [23][24][25]. Above the ionization threshold, the electronic continuum of polyelectronic atoms and molecules feature localized states that are only transiently bound, since they can relax by Auger decay.…”