100 citations · 362 across the 11 of their papers we have counts for
16 papers · 1 filter
Tuning laser-induced bandgaps in graphene
Hernan L. Calvo, Horacio M. Pastawski, Stephan Roche +1
Could a laser field lead to the much sought-after tunable bandgaps in graphene? By using Floquet theory combined with Green's functions techniques, we predict that a laser field in…
Semiclassical Theory of Time-Reversal Focusing
Hernan L. Calvo, Rodolfo A. Jalabert, Horacio M. Pastawski
Time reversal mirrors have been successfully implemented for various kinds of waves propagating in complex media. In particular, acoustic waves in chaotic cavities exhibit a refoca…
Time-reversal of a wave packet emitted by an internal source: the perfect inverse filter
Hernan L. Calvo, Horacio M. Pastawski
The time-reversal mirror (TRM) of acoustic waves is used as a focusing technique that is robust against disorder and chaos. The propagation of an ultrasonic pulse from the focal po…
Signatures of a quantum dynamical phase transition in a three-spin system in presence of a spin environment
Gonzalo A. Alvarez, Patricia R. Levstein, Horacio M. Pastawski
We have observed an environmentally induced quantum dynamical phase transition in the dynamics of a two spin experimental swapping gate [J. Chem. Phys. 124, 194507 (2006)]. There,…
Time Reversal Mirror and Perfect Inverse Filter in a Microscopic Model for Sound Propagation
Hernan L. Calvo, Ernesto P. Danieli, Horacio M. Pastawski
Time reversal of quantum dynamics can be achieved by a global change of the Hamiltonian sign (a hasty Loschmidt daemon), as in the Loschmidt Echo experiments in NMR, or by a local…
Decoherence under many-body system-environment interactions: a stroboscopic representation based on a fictitiously homogenized interaction rate
Gonzalo A. Alvarez, Ernesto P. Danieli, Patricia R. Levstein +1
An environment interacting with portions of a system leads to multiexponential interaction rates. Within the Keldysh formalism, we fictitiously homogenize the system-environment in…