We present detailed observations of the quantum delta-kicked rotor in the vicinity of a
quantum resonance. Our experiment consists of an ensemble of cold cesium atoms subject …

Quantum-resonance ratchets associated with the kicked particle are experimentally realized
for arbitrary quasimomentum using a Bose-Einstein condensate (BEC) exposed to a pulsed …

The quantum resonances occurring with δ-kicked atoms when the kicking period is an
integer multiple of the half-Talbot time are analysed in detail. Exact results about the …

A theory for stabilization of quantum resonances by a mechanism similar to one leading to
classical resonances in nonlinear systems is presented. It explains recent surprising …

We consider wave transport phenomena in a PT-symmetric extension of the periodically
kicked quantum rotator model and reveal that dynamical localization assists the unbroken …

We experimentally explore the underlying pseudoclassical phase space structure of the
quantum δ-kicked accelerator. This was achieved by exposing a Bose-Einstein condensate …

Unexpected accelerator modes were recently observed experimentally for cold cesium
atoms when driven in the presence of gravity. A detailed theoretical explanation of this …

We experimentally and numerically investigate the quantum accelerator mode dynamics of
an atom optical realization of the quantum δ-kicked accelerator, whose classical dynamics …

Quantum resonances in the kicked rotor are characterized by a dramatically increased
energy absorption rate, in stark contrast to the momentum localization generally observed …

Atom-optics kicked rotor represents an experimentally reliable version of the paradigmatic
quantum kicked rotor system. In this system, a periodic sequence of kicks are imparted to the …