88 citations · 264 across the 9 of their papers we have counts for
4 papers · 1 filter
Spin-boson dynamics beyond conventional perturbation theories
Francesco Nesi, Elisabetta Paladino, Michael Thorwart +1
A novel approximation scheme is proposed to describe the dynamics of the spin-boson problem. Being nonperturbative in the coupling strength nor in the tunneling frequency, it gives…
Dynamics of a qubit coupled to a broadened harmonic mode at finite detuning
F. Nesi, M. Grifoni, E. Paladino
We study the dynamics of a symmetric two-level system strongly coupled to a broadened harmonic mode. Upon mapping the problem onto a spin-boson model with peaked spectral density,…
Characterization of coherent impurity effects in solid state qubits
E. Paladino, M. Sassetti, G. Falci +1
We propose a characterisation of the effects of bistable coherent impurities in solid state qubits. We introduce an effective impurity description in terms of a tunable spin-boson…
Modulation of dephasing due to a spin-boson environment
E. Paladino, M. Sassetti, G. Falci
We study the reduced dynamics of a spin (qubit) coupled to a spin-boson environment in the case of pure dephasing. We derive formal exact expressions which can be cast in terms of…