1.1k citations · 1.9k across the 20 of their papers we have counts for
20 papers
Shortcut-to-adiabaticity-like techniques for parameter estimation in quantum metrology
Marina Cabedo-Olaya, Juan Gonzalo Muga, Sofía Martínez-Garaot
Quantum metrology makes use of quantum mechanics to improve precision measurements and measurement sensitivities. It is usually formulated for time-independent Hamiltonians but tim…
Time-dependent harmonic potentials for momentum or position scaling
J. G. Muga, S. Martínez-Garaot, M. Pons +2
Cooling methods and particle slowers as well as accelerators are basic tools for fundamental research and applications in different fields and systems. We put forward a generic mec…
Noise Sensitivities for an Atom Shuttled by a Moving Optical Lattice via Shortcuts to Adiabaticity
Xiao-Jing Lu, Andreas Ruschhaupt, Sofía Martínez-Garaot +1
We find the noise sensitivities (i.e., the quadratic terms of the energy with respect to the perturbation of the noise) of a particle shuttled by an optical lattice that moves acco…
Trapped-ion Fock state preparation by potential deformation
M. A. Simón, M. Palmero, S. Martínez-Garaot +1
We propose protocols to prepare highly excited energy eigenstates of a trapped ion in a harmonic trap which do not require laser pulses to induce transitions among internal levels.…
Inverse quantum measurement problem
D. Sokolovski, S. Martínez-Garaot, M. Pons
Quantum mechanics relates probability of an observable event to the absolute square of the corresponding probability amplitude. It may, therefore, seem that the information about t…
Shortcuts to adiabaticity: concepts, methods, and applications
D. Guéry-Odelin, A. Ruschhaupt, A. Kiely +3
Shortcuts to adiabaticity (STA) are fast routes to the final results of slow, adiabatic changes of the controlling parameters of a system. The shortcuts are designed by a set of an…
Interferometer with a driven trapped ion
S. Martínez-Garaot, A. Rodriguez-Prieto, J. G. Muga
We propose an interferometric measurement of weak forces using a single ion subjected to designed time-dependent spin-dependent forces. Explicit expressions of the relation between…
Non-linear mixing of Bogoliubov modes in a bosonic Josephson junction
Sofía Martínez-Garaot, Giulio Pettini, Michele Modugno
We revisit the dynamics of a Bose-Einstein condensate in a double-well potential, from the regime of Josephson plasma oscillations to the self-trapping regime, by means of the Bogo…
Hamiltonian design to prepare arbitrary states of four-level systems
Y. - C. Li, D. Martínez, S. Martínez-Garaot +2
We propose a method to manipulate, possibly faster than adiabatically, four-level systems with time-dependent couplings and constant energy shifts (detunings in quantum-optical rea…
Fast driving between arbitrary states of a quantum particle by trap deformation
S. Martínez-Garaot, M. Palmero, J. G. Muga +1
By performing a slow adiabatic change between two traps of a quantum particle, it is possible to transform an eigenstate of the original trap into the corresponding eigenstate of t…
Fast phase gates with trapped ions
M. Palmero, S. Martínez-Garaot, D. Leibfried +2
We implement faster-than-adiabatic two-qubit phase gates using smooth state-dependent forces. The forces are designed to leave no final motional excitation, independently of the in…
Fast bias inversion of a double well without residual particle excitation
S. Martínez-Garaot, M. Palmero, D. Guéry-Odelin +1
We design fast bias inversions of an asymmetric double well so that the lowest states in each well remain so and free from residual motional excitation. This cannot be done adiabat…
Fast separation of two trapped ions
M. Palmero, S. Martínez-Garaot, U. G. Poschinger +2
We design fast protocols to separate or recombine two ions in a segmented Paul trap. By inverse engineering the time evolution of the trapping potential composed of a harmonic and…
Fast expansions and compressions of trapped-ion chains
M. Palmero, S. Martínez-Garaot, J. Alonso +2
We investigate the dynamics under diabatic expansions/compressions of linear ion chains.Combining a dynamical normal-mode harmonic approximation with the invariant-based inverse-en…
Fast quasi-adiabatic dynamics
S. Martínez-Garaot, A. Ruschhaupt, J. Gillet +2
We work out the theory and applications of a fast quasi-adiabatic approach to speed up slow adiabatic manipulations of quantum systems by driving a control parameter as near to the…
Shortcuts to adiabaticity in three-level systems using Lie transforms
S. Martínez-Garaot, E. Torrontegui, Xi Chen +1
Sped-up protocols (shortcuts to adiabaticity) that drive a system quickly to the same populations than a slow adiabatic process may involve Hamiltonian terms difficult to realize i…
Hamiltonian engineering via invariants and dynamical algebra
E. Torrontegui, S. Martínez-Garaot, J. G. Muga
We use the dynamical algebra of a quantum system and its dynamical invariants to inverse engineer feasible Hamiltonians for implementing shortcuts to adiabaticity. These are speede…
Engineering fast and stable splitting of matter waves
E. Torrontegui, S. Martínez-Garaot, M. Modugno +2
When attempting to split coherent cold atom clouds or a Bose-Einstein condensate (BEC) by bifurcation of the trap into a double well, slow adiabatic following is unstable with resp…
Shortcuts to adiabaticity: fast-forward approach
E. Torrontegui, S. Martínez-Garaot, A. Ruschhaupt +1
The "fast-forward" approach by Masuda and Nakamura generates driving potentials to accelerate slow quantum adiabatic dynamics. First we present a streamlined version of the formali…
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…