We perform a review of various approaches to the implementation of quantum memories,
with an emphasis on activities within the quantum memory sub-project of the EU integrated …

Squeezing of quantum fluctuations by means of entanglement is a well-recognized goal in
the field of quantum information science and precision measurements. In particular …

We use a quantum non-demolition measurement to generate a spin squeezed state and to
create entanglement in a cloud of 10 5 cold cesium atoms. For the first time we operate an …

We observe the coherence of an interacting two-component Bose-Einstein condensate
(BEC) surviving for seconds in a trapped Ramsey interferometer. Mean-field-driven …

We describe a novel method of single-shot trap frequency measurement for a confined Bose-
Einstein Condensate, which uses an atom laser to repeatedly sample the mean velocity of …

Atoms trapped in the evanescent field around a nanofiber experience strong coupling to the
light guided in the fiber mode. However, due to the intrinsically strong positional …

Abstract Ultracold atoms and Bose-Einstein condensates represent a burgeoning and ever
exciting area of research which has produced numerous breakthroughs in the last 15 years …

Squeezing of quantum fluctuations by means of entanglement is a well recognized goal in
the field of quantum information science and precision measurements. In particular …

We observe the coherence of an interacting Bose-Einstein condensate (BEC) survive for an
unprecedented time in a trapped Ramsey interferometer. Mean-field driven collective …

We employ a continuous dynamical decoupling scheme to suppress the decoherence
induced by elastic collisions of cold atoms. Using a continuous echo pulse we achieve a …