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Scattering Resonances in a Degenerate Fermi Gas
K. J. Challis, N. Nygaard, K. Mølmer
We consider elastic single-particle scattering from a one-dimensional two-component trapped superfluid Fermi gas when the incoming projectile particle is identical to one of the co…
Scattering and binding of different atomic species in a one-dimensional optical lattice
R. T. Piil, N. Nygaard, K. Molmer
The theory of scattering of atom pairs in a periodic potential is presented for the case of different atoms. When the scattering dynamics is restricted to the lowest Bloch band of…
Two-channel Feshbach physics in a structured continuum
N. Nygaard, R. Piil, K. Molmer
We analyze the scattering and bound state physics of a pair of atoms in a one-dimensional optical lattice interacting via a narrow Feshbach resonance. The lattice provides a struct…
Hanbury Brown and Twiss correlations in atoms scattered from colliding condensates
Klaus Molmer, A. Perrin, V. Krachmalnicoff +4
Low energy elastic scattering between clouds of Bose condensed atoms leads to the well known s-wave halo with atoms emerging in all directions from the collision zone. In this pape…
Feshbach Molecules in a One-dimensional Optical Lattice
N. Nygaard, R. Piil, K. Molmer
We present the theory of a pair of atoms in a one-dimensional optical lattice interacting via a narrow Feshbach resonance. Using a two-channel description of the resonance, we deri…
Association of heteronuclear molecules in a harmonic oscillator well
Jesper Fevre Bertelsen, Klaus Molmer
We describe the collisional interaction between two different atoms that are trapped in a harmonic potential. The atoms are exposed to a magnetic field, which is modulated in the v…
Pair correlated atoms with a twist
Uffe V. Poulsen, Klaus Molmer
We present an analysis of the quantum state resulting from the dissociation of diatomic molecules prepared in a condensate vortex state. The many-body state preserves the rotationa…
Tunnelling couplings in discrete lattices, single particle band structure and eigenstates of interacting atom pairs
Rune Piil, Klaus Molmer
By adjusting the tunnelling couplings over longer than nearest neighbor distances it is possible in discrete lattice models to reproduce the properties of the lowest energy band of…
Observing the Profile of an Atom Laser Beam
M. Köhl, Th. Busch, K. Molmer +2
We report on an investigation of the beam profile of an atom laser extracted from a magnetically trapped Rb Bose-Einstein condensate. The transverse momentum distribution is…
Molecule Formation in Optical Lattice Wells by Resonantly Modulated Magnetic Fields
Jesper Fevre Bertelsen, Klaus Molmer
We present a theoretical model for formation of molecules in an optical lattice well where a resonant coupling of atomic and molecular states is provided by small oscillations of a…
Phase-matched four wave mixing and quantum beam splitting of matter waves in a periodic potential
Karen Marie Hilligsøe, Klaus Mølmer
We show that the dispersion properties imposed by an external periodic potential ensure both energy and quasi-momentum conservation such that correlated pairs of atoms can be gener…
Tomographic reconstruction of quantum correlations in excited Bose-Einstein condensates
Anders S. Mouritzen, Klaus Molmer
We propose to use quantum tomography to characterize the state of a perturbed Bose-Einstein condensate. We assume knowledge of the number of particles in the zero-wave number mode…