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Degenerate quantum gases of strontium
Degenerate quantum gases of alkaline-earth-like elements open new opportunities in research areas ranging from molecular physics to the study of strongly correlated systems. These experiments exploitExpand
Bose-Einstein condensation of strontium.
The attainment of Bose-Einstein condensation with ultracold strontium atoms is reported on, which puts (84)Sr in a prime position for future experiments on quantum-degenerate gases involving atomic two-electron systems. Expand
Laser cooling to quantum degeneracy.
Bose-Einstein condensation in a gas of strontium atoms can be repeatedly formed on a time scale of 100 ms, with prospects for the generation of a continuous atom laser. Expand
Creation of ultracold Sr(2) molecules in the electronic ground state.
This work overcomes the previous limitation of STIRAP schemes to systems with magnetic Feshbach resonances, thereby establishing a route that is applicable to many systems beyond alkali-metal dimers. Expand
Oscillations and interactions of dark and dark bright solitons in Bose Einstein condensates
Solitons are encountered in a wide range of nonlinear systems, from water channels to optical fibres. They have also been observed in Bose–Einstein condensates, but only now have such ‘ultracoldExpand
Production of quantum-degenerate strontium gases
We report on an improved scheme to generate Bose-Einstein condensates (BECs) and degenerate Fermi gases of strontium. This scheme allows us to create quantum gases with higher atom number, a shorterExpand
Attempt to optically excite the nuclear isomer in 229 Th
We aim to perform direct optical spectroscopy of the $^{229}\mathrm{Th}$ nuclear isomer to measure its energy and lifetime, and to demonstrate optical coupling to the nucleus. To this end, we developExpand
Reservoir spectroscopy of 5s5p 3P2-5snd 3D1,2,3 transitions in strontium
We perform spectroscopy on the optical dipole transitions 5s5p3P2-5snd3D1,2,3, n∈(5,6), for all stable isotopes of atomic strontium. We develop a spectroscopy scheme in which atoms in the metastableExpand
Toward an energy measurement of the internal conversion electron in the deexcitation of the 229 Th isomer
The first excited isomeric state of Th-229 has an exceptionally low energy of only a few eV and could form the gateway to high-precision laser spectroscopy of nuclei. The excitation energy of theExpand
Quantum degenerate mixtures of strontium and rubidium atoms
We report on the realization of quantum degenerate gas mixtures of the alkaline-earth-metal element strontium with the alkali-metal element rubidium. A key ingredient of our scheme is sympatheticExpand