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Atomic and molecular matter fields in periodic potentials
Klaus Molmer
This paper deals with the conversion between atoms and molecules in optical lattices. We show that in the absence of collisional interaction, the atomic and molecular components in…
Interaction induced phase fluctuations in a guided atom laser
Isabelle Bouchoule, Klaus Moelmer
In this paper, we determine the magnitude of phase fluctuations caused by atom-atom interaction in a one-dimensional beam of bosonic atoms. We imagine that the beam is created with…
Atoms and molecules in lattices: condensates built on a shared vacuum
Tilman Esslinger, Klaus Molmer
In optical lattices where each site is occupied in its lowest energy state by a superposition of zero, one and two atoms, one can in a controllable manner convert the atomic pair i…
Scattering of atoms on a Bose-Einstein condensate
Uffe V. Poulsen, Klaus Molmer
We study the scattering properties of a Bose-Einstein condensate held in a finite depth well when the incoming particles are identical to the ones in the condensate. We calculate p…
A quantum beam splitter for atoms
Uffe V. Poulsen, Klaus Molmer
An interferometric method is proposed to controllably split an atomic condensate in two spatial components with strongly reduced population fluctuations. All steps in our proposal…
Squeezed Condensates
Uffe V. Poulsen, Klaus Molmer
We analyse the atomic state obtained by photo-dissociation of a molecular Bose-Einstein-condensate. This process is equivalent to down-conversion in quantum optics where it is resp…
Component separation in harmonically trapped boson-fermion mixtures
Nicolai Nygaard, Klaus Moelmer
We present a numerical study of mixed boson-fermion systems at zero temperature in isotropic and anisotropic harmonic traps. We investigate the phenomenon of component separation a…