36 citations · 75 across the 3 of their papers we have counts for
5 papers
Unitary transformation approach for the trapped ion dynamics
H. Moya-Cessa, A. Vidiella-Barranco, J. A. Roversi +1
We present a way of treating the problem of the interaction of a single trapped ion with laser beams based on successive aplications of unitary transformations onto the Hamiltonian…
Recovering coherence from decoherence: a method of quantum state reconstruction
H. Moya-Cessa, J. A. Roversi, S. M. Dutra +1
We present a feasible scheme for reconstructing the quantum state of a field prepared inside a lossy cavity. Quantum coherences are normally destroyed by dissipation, but we show t…
Quantum state reconstruction in the presence of dissipation
H. Moya-Cessa, S. M. Dutra, A. Vidiella-Barranco +1
We propose a realistic scheme to determine the quantum state of a single mode cavity field even after it has started to decay due to the coupling with an environment. Although diss…
Exact Diagonalization of Two Quantum Models for the Damped Harmonic Oscillator
M. Rosenau da Costa, A. O. Caldeira, S. M. Dutra +1
The damped harmonic oscillator is a workhorse for the study of dissipation in quantum mechanics. However, despite its simplicity, this system has given rise to some approximations…
Long-time-scale revivals in ion traps
H. Moya-Cessa, A. Vidiella-Barranco, J. A. Roversi +2
In this contribution we investigate the interaction of a single ion in a trap with laser beams. Our approach, based on unitary transformating the Hamiltonian, allows its exact diag…