242 citations · 557 across the 8 of their papers we have counts for
8 papers
A counterintuitive way to speed up pedestrian and granular bottleneck flows prone to clogging: Can 'more' escape faster?
Alexandre Nicolas, Santiago Ibáñez, Marcelo Kuperman +1
Dense granular flows through constrictions, as well as competitive pedestrian evacuations, are hindered by a propensity to form clogs. We usesimulations of model pedestrians and ex…
Pulse design without rotating wave approximation
S. Ibáñez, Yi-Chao Li, Xi Chen +1
We design realizable time-dependent semiclassical pulses to invert the population of a two-level system faster than adiabatically when the rotating-wave approximation cannot be app…
Adiabaticity condition for non-Hermitian Hamiltonians
S. Ibáñez, J. G. Muga
We generalize the concept of population for non-Hermitian systems in different ways and identify the one best suited to characterize adiabaticity. An approximate adiabaticity crite…
Shortcuts to adiabaticity by superadiabatic iterations
S. Ibáñez, Xi Chen, J. G. Muga
Different techniques to speed up quantum adiabatic processes are currently being explored for applications in atomic, molecular and optical physics, such as transport, cooling and…
Levy ratchets with dichotomic random flashing
S. A. Ibáñez, A. B. Kolton, S. Risau-Gusman +1
Additive symmetric Lévy noise can induce directed transport of overdamped particles in a static asymmetric potential. We study, numerically and analytically, the effect of an addit…
Shortcuts to adiabaticity for non-Hermitian systems
S. Ibáñez, S. Martínez-Garaot, Xi Chen +2
Adiabatic processes driven by non-Hermitian, time-dependent Hamiltonians may be sped up by generalizing inverse engineering techniques based on Berry's transitionless driving algor…
Doubly resonant ultrachirped pulses
S. Ibáñez, A. Peralta Conde, D. Guéry-Odelin +1
Ultrachirped pulses for which the frequency chirp is of the order of the transition frequency of a two-level atom are examined. When the chirp is large enough, the resonance may be…
Fast atomic transport without vibrational heating
E. Torrontegui, S. Ibáñez, Xi Chen +3
We use the dynamical invariants associated with the Hamiltonian of an atom in a one dimensional moving trap to inverse engineer the trap motion and perform fast atomic transport wi…