112 citations · 1.1k across the 124 of their papers we have counts for
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Further analysis of the connected moments expansion
Paolo Amore, Francisco M. Fernández, Martin Rodriguez
We apply the connected moments expansion to simple quantum--mechanical examples and show that under some conditions the main equations of the approach are no longer valid. In parti…
High--order connected moments expansion for the Rabi Hamiltonian
Paolo Amore, Francisco M. Fernández, Martin Rodriguez
We analyze the convergence properties of the connected moments expansion (CMX) for the Rabi Hamiltonian. To this end we calculate the moments and connected moments of the Hamiltoni…
Spectroscopy of annular drums and quantum rings: perturbative and nonperturbative results
Carlos Alvarado, Paolo Amore
We obtain systematic approximations to the states (energies and wave functions) of quantum rings (annular drums) of arbitrary shape by conformally mapping the annular domain to a s…