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21 papers · 2 filters
Efficient quantum memory and entanglement between light and an atomic ensemble using magnetic fields
Christine A. Muschik, Klemens Hammerer, Eugene S. Polzik +1
We present two protocols, one for the storage of light in an atomic ensemble and the subsequent retrieval, and another one for the generation of entanglement between light and atom…
Time-resolved and state-selective detection of single freely falling atoms
Torsten Bondo, Markus Hennrich, Thomas Legero +2
We report on the detection of single, slowly moving Rubidium atoms using laser-induced fluorescence. The atoms move at 3 m/s while they are detected with a time resolution of 60 mi…
Momentum diffusion for coupled atom-cavity oscillators
K. Murr, P. Maunz, P. W. H. Pinkse +4
It is shown that the momentum diffusion of free-space laser cooling has a natural correspondence in optical cavities when the internal state of the atom is treated as a harmonic os…
Phase time for a tunneling particle
Swarnali Bandopadhyay, A. M. Jayannavar
We study the nature of tunneling phase time for various quantum mechanical structures such as networks and rings having potential barriers in their arms. We find the generic presen…
Detection of multipartite entanglement in the vicinity of symmetric Dicke states
Geza Toth
We present methods for detecting entanglement around symmetric Dicke states. In particular, we consider N-qubit symmetric Dicke states with N/2 excitations. In the first part of th…
Analysis of a single-atom dipole trap
Markus Weber, Juergen Volz, Karen Saucke +2
We describe a simple experimental technique which allows to store a single Rubidium 87 atom in an optical dipole trap. Due to light-induced two-body collisions during the loading s…