41 citations · 461 across the 30 of their papers we have counts for
6 papers · 1 filter
Coupling-assisted Landau-Majorana-Stuckelberg-Zener transition in two-interacting-qubit systems
R. Grimaudo, N. V. Vitanov, A. Messina
We analyse a system of two interacting spin-qubits subjected to a Landau-Majorana-Stückelberg-Zener (LMSZ) ramp. We prove that LMSZ transitions of the two spin-qubits are possible…
Quasi-Lie Brackets and the Breaking of Time-Translation Symmetry for Quantum Systems Embedded in Classical Baths
Alessandro Sergi, Gabriel Hanna, Roberto Grimaudo +1
Many open quantum systems encountered in both natural and synthetic situations are embedded in classical-like baths. Often, the bath degrees of freedom may be represented in terms…
Exactly solvable time-dependent pseudo-Hermitian (1,1) Hamiltonian models
R. Grimaudo, A. S. M. de Castro, M. Kus +1
An exact analytical treatment of the dynamical problem for time-dependent 2x2 pseudo-hermitian su(1,1) Hamiltonians is reported. A class of exactly solvable and physically transpar…
Cooling of Many-Body Systems via Selective Interactions
R. Grimaudo, L. Lamata, E. Solano +1
We propose a model describing spin-1/2 systems coupled through -order homogeneous interaction terms, in presence of local time-dependent magnetic fields. This model can be e…
Analytic estimation of transition between instantaneous eigenstates of quantum two-level system
Takayuki Suzuki, Hiromichi Nakazato, Roberto Grimaudo +1
Transition amplitudes between instantaneous eigenstates of quantum two-level system are evaluated analytically on the basis of a new parametrization of its evolution operator, whic…
Classes of Exactly Solvable Generalized Semi-Classical Rabi Systems
R. Grimaudo, A. S. M. de Castro, H. Nakazato +1
The exact quantum dynamics of a single spin-1/2 in a generic time-dependent classical magnetic field is investigated and compared with the quantum motion of a spin-1/2 studied by R…