856 citations · 1.5k across the 10 of their papers we have counts for
5 papers · 1 filter
Echo Spectroscopy of Atomic Dynamics in a Gaussian Trap via Phase Imprints
Daniel Oblak, Juergen Appel, Patrick Windpassinger +3
We report on the collapse and revival of Ramsey fringe visibility when a spatially dependent phase is imprinted in the coherences of a trapped ensemble of two-level atoms. The phas…
Detecting entanglement in two mode squeezed states by particle counting
Christine A. Muschik, Eugene S. Polzik, J. Ignacio Cirac
We present an entanglement criterion for two mode squeezed states which relies on particle counting only. The proposed inequality is optimal for the state under consideration and r…
Spin squeezing of atomic ensembles via nuclear-electronic spin entanglement
T. Fernholz, H. Krauter, K. Jensen +3
Entangled many body systems have recently attracted significant attention in various contexts. Among them, spin squeezed atoms and ions have raised interest in the field of precisi…
Inhomogeneous Light Shift Effects on Atomic Quantum State Evolution in Non-Destructive Measurements
Patrick Windpassinger, Daniel Oblak, Ulrich Busk Hoff +3
Various parameters of a trapped collection of cold and ultracold atoms can be determined non--destructively by measuring the phase shift of an off--resonant probe beam, caused by t…
Non-Destructive Probing of Rabi Oscillations on the Cesium Clock Transition near the Standard Quantum Limit
P. J. Windpassinger, D. Oblak, P. G. Petrov +7
We report on non-destructive observation of Rabi oscillations on the Cs clock transition. The internal atomic state evolution of a dipole-trapped ensemble of cold atoms is inferred…