Angle-resolved photoemission studies of quantum materials
The physics of quantum materials is dictated by many-body interactions and mathematical
concepts such as symmetry and topology that have transformed our understanding of matter …
concepts such as symmetry and topology that have transformed our understanding of matter …
Time-resolved ARPES studies of quantum materials
Angle-resolved photoemission spectroscopy (ARPES), with its exceptional sensitivity to both
the binding energy and the momentum of valence electrons in solids, provides unparalleled …
the binding energy and the momentum of valence electrons in solids, provides unparalleled …
Non-Hermitian electronic theory and applications to clusters
Electronically excited cations, generated by inner-valence ionization of small molecules,
relax in general by dissociation and photon emission. Autoionization is forbidden for …
relax in general by dissociation and photon emission. Autoionization is forbidden for …
Electronic decay of valence holes in clusters and condensed matter
Following innervalence ionization of a cluster, the system can relax by electron emission, a
phenomenon called intermolecular Coulombic decay. This process is characterized by an …
phenomenon called intermolecular Coulombic decay. This process is characterized by an …
Feshbach hypothesis of high-Tc superconductivity in cuprates
Resonant interactions associated with the emergence of a bound state constitute one of the
cornerstones of modern many-body physics. Here we present a Feshbach perspective on …
cornerstones of modern many-body physics. Here we present a Feshbach perspective on …
Time-and angle-resolved photoemission studies of quantum materials
Angle-resolved photoemission spectroscopy (ARPES)--with its exceptional sensitivity to both
the binding energy and momentum of valence electrons in solids--provides unparalleled …
the binding energy and momentum of valence electrons in solids--provides unparalleled …
Scattering theory of mesons in doped antiferromagnetic Mott insulators: Multichannel perspective and Feshbach resonance
Modeling the underlying pairing mechanism of charge carriers in strongly correlated
electrons, starting from a microscopic theory, is among the central challenges of condensed …
electrons, starting from a microscopic theory, is among the central challenges of condensed …
Coincidence spectroscopy: Past, present and perspectives
T Arion, U Hergenhahn - Journal of Electron Spectroscopy and Related …, 2015 - Elsevier
Coincidence spectroscopy is a powerful spectroscopic method addressing the recording of
more than one particle involved in an ionization process simultaneously. In the current …
more than one particle involved in an ionization process simultaneously. In the current …
Microscopy of bosonic charge carriers in staggered magnetic fields
The interplay of spin and charge degrees of freedom is believed to underlie various
unresolved phenomena in strongly correlated systems. Quantum simulators based on …
unresolved phenomena in strongly correlated systems. Quantum simulators based on …
Distinguishing finite-momentum superconducting pairing states with two-electron photoemission spectroscopy
We show theoretically that double photoemission (2 e-ARPES) may be used to identify the
pairing state in superconductors in which the Cooper pairs have a nonzero center-of-mass …
pairing state in superconductors in which the Cooper pairs have a nonzero center-of-mass …