Optics and molecules on atom chips

Combined chips for atom optics

We present experiments with Bose-Einstein condensates on a combined atom chip. The combined structure consists of a large-scale “carrier chip” and smaller “atom-optics chips,” containing micron-sized elements. This allows us to work with condensates very close to chip surfaces without suffering from fragmentation or losses due to thermally driven spin flips. Precise three-dimensional positionin...

Trapping molecules on chips

Correspondence: [email protected] 1Fritz-Haber-Institut der MaxPlanck-Gesellschaft, Faradayweg 4-6, 14195 Berlin, Germany 2Istituto Nazionale di Ottica-CNR & European Laboratory for Non-Linear Spectroscopy LENS, Via Nello Carrara 1, 50019 Sesto Fiorentino, Italy Abstract In the last years, it was demonstrated that neutral molecules can be loaded on a microchip directly from a supersoni...

Atom Interferometry on Atom Chips - A Novel Approach Towards Precision

We have proposed and experimentally demonstrated a new technique for creating spin squeezed states of distant atoms by their common interaction with a driven resonator mode. Using this technique we achieve the largest spin squeezing to date, 5.6dB of improvement in signal-to-noise ratio over the standard quantum limit. We have demonstrated a squeezed atomic clock that reaches a given precision ...

Quantum and Atom Optics

Superconducting atom chips: advantages and challenges

Superconductors are considered in view of applications to atom chip devices. The main features of magnetic traps based on superconducting wires in the Meissner and mixed states are discussed. The former state may mainly be interesting for improved atom optics, while in the latter, cold atoms may provide a probe of superconductor phenomena. The properties of a magnetic side guide based on a sing...