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See detailSimulation of the elementary evolution operator with the motional states of an ion in an anharmonic trap
Santos, Ludovic; Justum, Yves; Vaeck, Nathalie et al

in The journal of chemical physics (2015), 142

Following a recent proposal of L. Wang and D. Babikov, J. Chem. Phys. 137, 064301 (2012), we theoretically illustrate the possibility of using the motional states of a Cd+ ion trapped in a slightly ... [more ▼]

Following a recent proposal of L. Wang and D. Babikov, J. Chem. Phys. 137, 064301 (2012), we theoretically illustrate the possibility of using the motional states of a Cd+ ion trapped in a slightly anharmonic potential to simulate the single-particle time-dependent Schrödinger equation. The simulated wave packet is discretized on a spatial grid and the grid points are mapped on the ion motional states which define the qubit network. The localization probability at each grid point is obtained from the population in the corresponding motional state. The quantum gate is the elementary evolution operator corresponding to the time-dependent Schrödinger equation of the simulated system. The corresponding matrix can be estimated by any numerical algorithm. The radio-frequency field able to drive this unitary transformation among the qubit states of the ion is obtained by multi-target optimal control theory. The ion is assumed to be cooled in the ground motional state and the preliminary step consists in initializing the qubits with the amplitudes of the initial simulated wave packet. The time evolution of the localization probability at the grids points is then obtained by successive applications of the gate and reading out the motional state population. The gate field is always identical for a given simulated potential, only the field preparing the initial wave packet has to be optimized for different simulations. We check the stability of the simulation against decoherence due to fluctuating electric fields in the trap electrodes by applying dissipative Lindblad dynamics. [less ▲]

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See detailOptimal control of a Cope rearrangement by coupling the reaction path to a dissipative bath or a second active mode
Chenel, Aurélie; Meier, Christoph; Dive, Georges et al

in The Journal of Chimical Physics (2015), 142

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See detailExternal constraints on optical control strategies in molecular orientation and photofragmentation: role of zero-area fields
Sugny, Dominique; Vranckx, Stéphane; Ndong, Mamadou et al

in Journal of Modern Optics (2014), 61

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See detailExciton dissociation at donor-acceptor heterojunctions: Dynamics using the collective effective mode representation of the spin-boson model
Chenel, Aurélie; Mangaud, Etienne; Burghardt, Irène et al

in Journal of Chemical Physics (2014), 140

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See detailDetermination of photodissociation and radiative association cross sections from the same time-dependent calculation
Vranckx, Stéphane; Loreau, Jérôme; Desouter, Michèle ULg et al

in Journal of Physics : B Atomic Molecular & Optical Physics (2013), 46

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See detailQuantum gates in hyperfine levels of ultracold alkali dimers by revisiting constrained-phase optimal control design
Jaouadi, Amine; Barrez, Etienne; Justum, Yves et al

in Journal of Chemical Physics (2013), 139

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See detailExceptional points for logic operations at the molecular level
Jaouadi, Amine; Desouter, Michèle ULg; Lefebvre, Roland et al

in Fortschritte der Physik = Progress of Physics (2013), 161(2-3), 162-177

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See detailSignatures of exceptional points in the laser control of non-adiabatic vibrational transfer
Jaouadi, A.; Desouter, Michèle ULg; Lefebvre, Roland et al

in Journal of Physics : B Atomic Molecular & Optical Physics (2013), (46), 145402

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See detailRadiative stabilization and photodissociation of HeH+ in its two lowest 3 sigma plus states
Vranckx, Stéphane; Loreau, Jerôme; Desouter, Michèle ULg et al

in Journal of Physics: Conference Series (2012), 288(2), 022109

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See detailControl in a dissipative environment: the example of a Cope rearrangement
Chenel, Aurélie; Dive, Georges ULg; Meier, Christopher et al

in Journal of Physical Chemistry A (2012), 116

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See detailLaser control in open quantum systems: preliminary analysis toward the Cope rearrangement control in methyl-cyclopentadienylcarboxylate dimer
Dive, Georges ULg; Robiette, Raphaël; Chenel, Aurélie et al

in Theoretical Chemistry Accounts : Theory, Computation, & Modeling (2012), 131(6), 1236-1247

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See detailImplementing quantum algorithms in hyperfine levels of ultracold polar molecules by optimal control
Pellegrini, Philippe; Vranckx, Stéphane; Desouter, Michèle ULg

in Physical Chemistry Chemical Physics [=PCCP] (2011), 13

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See detailQuantum gates driven by microwave pulses in hyperfine levels of ultracold heteronuclear dimers
Pellegrini, Philippe; Desouter, Michèle ULg

in European Physical Journal D -- Atoms, Molecules, Clusters & Optical Physics (2011), 64

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See detailLocal control of non-adiabatic dissociation dynamics
Bomble, Laëtitia; Chenel, Aurélie; Meier, Chris et al

in Journal of Chemical Physics (2011), 134

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See detailToward scalable information processing with ultracold polar molecules in an electric field: a numerical investigation
Bomble, Laëtitia; Pellegrini, Philippe; Ghesquière, Pierre et al

in Physical Review A (2010), 82

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See detailAb initio calculation of H + He+ charge-transfer cross section for plasma physics
Loreau, Jérôme; Sodoga, Komi; Lauvergnat, David et al

in Physical Review. A (2010), 82

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See detailControlled full adder-subtractor by vibrational computing
Bomble, L.; Lauvergnat, D.; Remacle, Françoise ULg et al

in Physical Chemistry Chemical Physics [=PCCP] (2010), 12(48), 15628-15635

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See detailQuantum dynamics of the charge transfer in C+ + S at low collision energy
Chenel, Aurélie; Mangaud, Etienne; Justum, Yves et al

in Journal of Physics : B Atomic Molecular & Optical Physics (2010), 43

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See detailRovibrational controlled-NOT gates using optimized stimulated Raman adiabatic passage techniques and optimal control theory
Sugny, Dominique; Bomble, Laëtitia; Ribeyre, T. et al

in Physical Review. A (2009), 80

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See detailPhotodissociation of the HeH+ ion into excited fragments (n=2,3) by time-dependent methods
Sodoga, K.; Loreau, J.; Lauvergnat, D. et al

in Physical Review. A (2009), 2009(80), 033417

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