40 citations · 242 across the 42 of their papers we have counts for
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Positive Hamiltonians cannot give exponential decay of positive observables
Paolo Facchi, Davide Lonigro
The survival probability of a quantum system with a finite ground energy is known to decay subexponentially at large times. Here we show that, under the same assumption, the averag…
Self-adjointness and domain of generalized spin-boson models with mild ultraviolet divergences
Sascha Lill, Davide Lonigro
We provide a rigorous construction of a large class of generalized spin-boson models with ultraviolet-divergent form factors. This class comprises various models of many possibly n…
On a sharper bound on the stability of non-autonomous Schrödinger equations and applications to quantum control
Aitor Balmaseda, Davide Lonigro, Juan Manuel Pérez-Pardo
We study the stability of the Schrödinger equation generated by time-dependent Hamiltonians with constant form domain. That is, we bound the difference between solutions of the Sch…
Self-adjointness of a class of multi-spin-boson models with ultraviolet divergences
Davide Lonigro
We study a class of quantum Hamiltonian models describing a family of two-level systems (spins) coupled with a structured boson field of positive mass, with a rotating-wave cou…