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quant-ph2000
Adiabatic approximation from a renormalization group inspired method
C. Contreras, J. C. Retamal, L. Vergara
We show how a method inspired in renormalization group techniques can be useful for deriving Hamiltonians in the adiabatic approximation in a systematic way.
quant-ph1999
A protocol to preserve quantum coherence in cavity QED
J. C. Retamal, E. S. Guerra
We consider the problem of quantum decoherence in cavity QED devices and investigate the possibility to preserve a Schroedinger cat as a coherent superposition along the time.