Search results for "Quantum physic"
showing 10 items of 1596 documents
La mécanique classique au secours de la compréhension des spectres quantiques
2000
International audience
Quantum vibrational chaos : how subtle a concept is it ?
2000
International audience
Highly excited vibrational dynamics
2000
International audience
Optimization of adiabatic passage with dephasing
2008
International audience
Control of molecular orientation by laser kiks
2004
International audience
Uniform analytic description of dephasing effects in two-state transitions
2007
International audience
Optimal control of spin dynamics
2010
International audience
Study of atomic Vapour Layers of Nanometric Thickness and Atom-Surface Interaction
2007
On the 'expanded local mode' approach applied to the methane molecule: isotopic substitution CH2D2 <--- CH4
2011
International audience; On the basis of a compilation of the 'expanded local mode' model and the general isotopic substitution theory, sets of simple analytical relations between different spectroscopic parameters (harmonic frequencies, anharmonic coefficients, ro-vibrational coefficients, different kinds of Fermi- and Coriolis-type interaction parameters) of the CH2D2 molecule are derived. All of them are expressed as simple functions of a few initial spectroscopic parameters of the mother, CH4, molecule. Test calculations with the derived isotopic relations show that, in spite of a total absence of initial information about the CH2D2 species, the numerical results of the calculations have…
Impact of many-body correlations on the dynamics of an ion-controlled bosonic Josephson junction
2016
We investigate an atomic ensemble of interacting bosons trapped in a symmetric double well potential in contact with a single tightly trapped ion which has been recently proposed [R. Gerritsma et al., Phys. Rev. Lett. 109, 080402 (2012)] as a source of entanglement between a Bose-Einstein condensate and an ion. Compared to the previous study, the present work aims at performing a detailed and accurate many-body analysis of such combined atomic quantum system by means of the ab-initio multi-configuration time-dependent Hartree method for bosons, which allows to take into account all correlations in the system. The analysis elucidates the importance of quantum correlations in the bosonic ense…