16 research outputs found
Quantum Fluctuations of a Single Trapped Atom: Transient Rabi Oscillations and Magnetic Bistability
Isolation of a single atomic particle and monitoring its resonance
fluorescence is a powerful tool for studies of quantum effects in
radiation-matter interaction. Here we present observations of quantum dynamics
of an isolated neutral atom stored in a magneto-optical trap. By means of
photon correlations in the atom's resonance fluorescence we demonstrate the
well-known phenomenon of photon antibunching which corresponds to transient
Rabi oscillations in the atom. Through polarization-sensitive photon
correlations we show a novel example of resolved quantum fluctuations:
spontaneous magnetic orientation of an atom. These effects can only be observed
with a single atom.Comment: LaTeX 2e, 14 pages, 7 Postscript figure
Studien- und Rekrutierungs-Update: frühe Reperfusion mit intravenöser Alteplase beim nicht-arteriitischen Zentralarterienverschluss der Netzhaut (REVISION-Studie)
Studien- und Rekrutierungs-Update: frühe Reperfusion mit intravenöser Alteplase beim nicht-arteriitischen Zentralarterienverschluss der Netzhaut (REVISION) - eine doppelt-blinde randomisierte placebokontrollierte Studie
Observation of individual neutral atoms in magnetic and magneto-optical traps
We have identified and photographed individual cesium atoms in a magneto-optical trap with steep
magnetic gradients. By switching off the trapping light fields, single atoms were released to a
bound state of the magnetic potential. A storage time of 38 s was measured for purely magnetic
trapping, whereas a storage time of 147 s was observed in the corresponding magneto-optical
trap