1,721,330 research outputs found
Entanglement between atomic internal and external states in velocity-selective coherent population trapping
Angular Momentum Detection in Magnetic Resonance at Low Fields
The angular-momentum detection of the magnetic resonance
is theoretically examined. The modified Bloch equations are rcsolved
in order to obtain the power absorption and the torque on the sample
at low d.c. magnetic fields in the presence of strong linearly polarized
r.f. fields. The Bloch-Siegert effect and a saturation shift, due to superposition
of the absorptions lines of the two rotating fields, arc directly
derived from the equations. Many-photon absorptions, line shapes and
shifts are examined. The differences between two different methods of
detection (detection of absorbed power and detection of angular momentum)
are emphasized
Dark Resonances in Quantum Optics
The processes occurring in three-level systems are briefly reviewed. Coherent population trapping, bright resonances, electromagnetic-induced transparency, electromagnetic-induced transparency optical clock are discussed
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