367 citations · 3.1k across the 85 of their papers we have counts for
3 papers · 1 filter
Coupled-Cluster Theory for Systems of Bosons in External Traps
Lorenz S. Cederbaum, Ofir E. Alon, Alexej I. Streltsov
A coupled-cluster approach for systems of bosons in external traps is developed. In the coupled-cluster approach the exact many-body wavefunction is obtained by applying an exp…
Exact ground state of finite Bose-Einstein condensates on a ring
Kaspar Sakmann, Alexej I. Streltsov, Ofir E. Alon +1
The exact ground state of the many-body Schrödinger equation for bosons on a one-dimensional ring interacting via pairwise -function interaction is presented for up to fifty…
Pathway from condensation via fragmentation to fermionization of cold bosonic systems
Ofir E. Alon, Lorenz S. Cederbaum
For small scattering lengths, cold bosonic atoms form a condensate the density profile of which is smooth. With increasing scattering length, the density {\it gradually} acquires m…