Since the pioneering works by Landau, Zener, Stückelberg, and Majorana (LZSM), it has
been known that driving a quantum two-level system results in tunneling between its states …

Feshbach resonances are the essential tool to control the interaction between atoms in
ultracold quantum gases. They have found numerous experimental applications, opening up …

A transition between energy levels at an avoided crossing is known as a Landau–Zener
transition. When a two-level system (TLS) is subject to periodic driving with sufficiently large …

Molecular quantum gases (that is, ultracold and dense molecular gases) have many
potential applications, including quantum control of chemical reactions, precision …

We have studied interspecies scattering in an ultracold mixture of 87 Rb and 133 Cs atoms,
both in their lowest-energy spin states. The three-body loss signatures of 30 incoming s-and …

The energy-level structure of a quantum system, which has a fundamental role in its
behaviour, can be observed as discrete lines and features in absorption and emission …

In a combined experimental and theoretical effort, we demonstrate a novel type of dipolar
system made of ultracold bosonic dipolar molecules with large magnetic dipole moments …

We report on experiments investigating quantum transport and band interferometry of an
atomic Bose-Einstein condensate in an optical lattice with a two-band miniband structure …

We report on the observation of interspecies Feshbach resonances in an ultracold, optically
trapped mixture of Rb and Cs atoms. In a magnetic-field range up to 300 G we find 23 …

We investigate the energy levels of heteronuclear alkali-metal dimers in levels correlating
with the lowest rotational level of the ground electronic state, which are important in efforts to …