1.1k citations · 4.1k across the 42 of their papers we have counts for
7 papers · 1 filter
Multiple Schrödinger pictures and dynamics in shortcuts to adiabaticity
S. Ibáñez, Xi Chen, E. Torrontegui +2
A Schrödinger equation may be transformed by unitary operators into dynamical equations in different interaction pictures which share with it a common physical frame, i.e., the sam…
Fast transitionless expansions of cold atoms in optical Gaussian beam traps
E. Torrontegui, Xi Chen, M. Modugno +3
We study fast expansions of cold atoms in a three-dimensional Gaussian-beam optical trap. Three different methods to avoid final motional excitation are compared: inverse engineeri…
Optimal trajectories for efficient atomic transport without final excitation
Xi Chen, E. Torrontegui, Dionisis Stefanatos +2
We design optimal harmonic-trap trajectories to transport cold atoms without final excitation, combining an inverse engineering techniqe based on Lewis-Riesenfeld invariants with o…
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…
Fast transport of Bose-Einstein condensates
E. Torrontegui, Xi Chen, M. Modugno +3
We propose an inverse method to accelerate without final excitation the adiabatic transport of a Bose Einstein condensate. The method, applicable to arbitrary potential traps, is b…
Quantum simulation of a triatomic chemical reaction with ultracold atoms on a waveguide
E. Torrontegui, A. Ruschhaupt, D. Guéry-Odelin +1
We study the scaling and coordinate transformation to physically simulate quantum three-body collinear chemical reactions of the type A+BC AB+C by the motion of singl…