498 citations · 5.9k across the 141 of their papers we have counts for
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Pairing in low-density Fermi gases
Thomas Papenbrock, George F. Bertsch
We consider pairing in a dilute system of Fermions with a short-range interaction. While the theory is ill-defined for a contact interaction, the BCS equations can be solved in the…
Application of time-dependent density functional theory to optical activity
K. Yabana, G. F. Bertsch
As part of a general study of the time-dependent local density approximation (TDLDA), we here report calculations of optical activity of chiral molecules. The theory automatically…
Coupling between electron-spin and ferromagnetic clusters
N. Hamamoto, N. Onishi, G. F. Bertsch
We analyze the adiabatic magnetization of ferromagnetic clusters in an intermediate coupling regime, where the anisotropic potential is comparable to other energy scales. We find a…
Anharmonic collective excitation in a solvable model
G. F. Bertsch, P. F. Bortignon, K. Hagino
We apply the time-dependent variational principle, the nuclear field theory, and the boson expansion method to the Lipkin model to discuss anharmonicities of collective vibrational…
Application of the time-dependent local-density approximation to conjugated molecules
K. Yabana, G. F. Bertsch
The time-dependent local-density approximation (TDLDA) is applied to the optical response of conjugated carbon molecules in the energy range of 0-30 eV, with calculations given for…
Nonergodic Behavior of Interacting Bosons in Harmonic Traps
Thomas Papenbrock, George F. Bertsch
We study the time evolution of a system of interacting bosons in a harmonic trap. In the low-energy regime, the quantum system is not ergodic and displays rather large fluctuations…