498 citations · 5.9k across the 141 of their papers we have counts for
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Derivation of K-matrix reaction theory in a discrete basis formalism
Y. Alhassid, G. F. Bertsch, P. Fanto
The usual derivations of the S and K matrices for two-particle reactions proceed through the Lippmann-Schwinger equation with formal definitions of the incoming and outgoing scatte…
Variational RPA for the Mie resonance in jellium
G. F. Bertsch, C. Guet, K. Hagino
The surface plasmon in simple metal clusters is red-shifted from the Mie frequency, the energy shift being significantly larger than the usual spill-out correction. Here we develop…
Can optical spectroscopy directly elucidate the ground state of C20?
Alberto Castro, M. A. L. Marques, Julio A. Alonso +3
The optical response of the lowest energy members of the C20 family is calculated using time-dependent density functional theory within a real-space, real-time scheme. Significant…
Optical response of small silver clusters
K. Yabana, G. F. Bertsch
The time-dependent local density approximation is applied to the optical response of the silver clusters, Ag_2, Ag_3, Ag_8 and Ag_9^+. The calculation includes all the electrons be…
Noncollinear magnetic ordering in small Chromium Clusters
C. Kohl, G. F. Bertsch
We investigate noncollinear effects in antiferromagnetically coupled clusters using the general, rotationally invariant form of local spin-density theory. The coupling to the elect…
Cluster ionization via two-plasmon excitation
G. F. Bertsch, N. Van Giai, N. Vinh Mau
We calculate the two-photon ionization of clusters for photon energies near the surface plasmon resonance. The results are expressed in terms of the ionization rate of a double pla…