Physics – Quantum Physics
Scientific paper
1998-08-25
Phys.Rev. A59 (1999) 714
Physics
Quantum Physics
RevTeX, 5 pages, four (EPS) figures automatically included through epsfig. Physical Review A 1998 (accepted for publication) T
Scientific paper
10.1103/PhysRevA.59.714
We propose a scheme which can effectively restore fixed points in the quantum dynamics of repeated Jaynes-Cummings interactions followed by atomic state measurements, when the interaction times fluctuate randomly. It is based on selection of superposed atomic states whose phase correlations tend to suppress the phase fluctuations of each separate state. One suggested realization involves the convergence of the cavity field distribution to a single Fock state by conditional measurements performed on two-level atoms with fluctuating velocities after they cross the cavity. Another realization involves a trapped ion whose internal-motional state coupling fluctuates randomly. Its motional state is made to converge to a Fock state by conditional measurements of the internal state of the ion.
Fortunato Mauro
Kurizki Gershon
Schleich Wolfgang P.
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