Attosecond time delay in the photoionization of endohedral atoms A@C${}_{60}$: A new probe of confinement resonances

Abstract

The effects of confinement resonances on photoelectron group delay (Wigner time delay) following ionization of an atom encapsulated inside a C${}_{60}$ cage have been studied theoretically using both relativistic and non-relativistic random phase approximations. The results indicate clearly the resonant character of the confinement oscillations in time delay of the $4d$ shell of Xe@C${}_{60}$ and present a most direct manifestation of Wigner time delay. These oscillations were missed in a previous theoretical investigation of Ar@C${}_{60}$ [PRL 111, 203003 (2013)]

References in corpus (4)

• Delay in atomic photoionization
• Time delay in the recoiling valence-photoemission of Ar endohedrally confined in C${}_{60}$
• Time-resolved photoemission using attosecond streaking
• Electron elastic scattering off endohedral fullerenes A@C60: The initial insight

Cited by in corpus (12)

• Solution of the quantum finite square well problem using the Lambert W function
• Electron elastic scattering off $A$@C${}_{60}$: The role of atomic polarization under confinement
• Time Delay in Electron-C60 Elastic Scattering in a Dirac Bubble Potential Model
• Fullerene photoemission time delay explores molecular cavity in attoseconds
• Joint moments of proper delay times
• Time delay of photoionization by Endohedrals
• Non-dipole effects in time delay of photoelectrons from atoms, negative ions, and endohedrals
• Relation Between Photoionisation Cross Sections and Attosecond Time Delays
• The impact of electron-electron correlation in ultrafast attosecond single ionization dynamics
• Resonant photoionization and time delay
• Delay times in chaotic quantum systems
• Polarization of the C${}_{60}$ cage by the photoelectron, interior static polarization of C${}_{60}$ by the ion-remainder and atomic-core relaxation in $A$@C${}_{60}$ photoionization