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- M. Bartenstein, Anais Altmeyer, +9 authors Paul S Julienne
- Physical review letters
- 2005

We employ radio-frequency spectroscopy on weakly bound (6)Li(2) molecules to precisely determine the molecular binding energies and the energy splittings between molecular states for differentâ€¦ (More)

- Jurgen H. Werner, Axel Griesmaier, +4 authors Eite Tiesinga
- Physical review letters
- 2005

We have observed Feshbach resonances in collisions between ultracold 52Cr atoms. This is the first observation of collisional Feshbach resonances in an atomic species with more than one valenceâ€¦ (More)

We find a new Hamiltonian formulation of the classical isotropic rotator where left and right SU(2) transformations are not canonical symmetries but rather Poisson Lie group symmetries. The systemâ€¦ (More)

- P O Schmidt, Sven Hensler, +4 authors Andrea Simoni
- Physical review letters
- 2003

We have measured the deca-triplet s-wave scattering length of the bosonic chromium isotopes 52Cr and 50Cr. From the time constants for cross-dimensional thermalization in ultracold atomic samples, weâ€¦ (More)

The role of topology in elementary quantum physics is discussed in detail. It is argued that attributes of classical spatial topology emerge from properties of state vectors with suitably smooth timeâ€¦ (More)

- Giuseppe Marmo, G Scolarici, Andrea Simoni, Franco Ventriglia
- 2005

We discuss transformations generated by dynamical quantum systems which are bi-unitary, i.e. unitary with respect to a pair of Hermitian structures on an infinite-dimensional complex Hilbert space.â€¦ (More)

In the study of bi-Hamiltonian systems (both classical and quantum) one starts with a given dynamics and looks for all alternative Hamiltonian descriptions it admits. In this paper we start with twoâ€¦ (More)

We report on the Bose-Einstein condensation of potassium atoms, whereby quantum degeneracy is achieved by sympathetic cooling with evaporatively cooled rubidium. Because of the rapid thermalizationâ€¦ (More)

- Giacomo Roati, Matteo Zaccanti, +5 authors Giovanni Modugno
- Physical review letters
- 2007

We produce a Bose-Einstein condensate of 39K atoms. Condensation of this species with a naturally small and negative scattering length is achieved by a combination of sympathetic cooling with 87Rbâ€¦ (More)

- Cindy McKenzie, J. Hecker Denschlag, +13 authors William Phillips
- Physical review letters
- 2002

We form ultracold Na2 molecules by single-photon photoassociation of a Bose-Einstein condensate, measuring the photoassociation rate, linewidth, and light shift of the J = 1, v = 135 vibrationalâ€¦ (More)