Search results for "Quantum physic"

Algebraic study of pyramidal XY3 molecules in vibrationally high excited states.

2010

National audience

Study of atomic vapor layers of nanometric thickness and atom-surface interaction

2007

International audience

The Demkov-Kunike model in the coherent magneto- and photoassociation of ultracold atoms.

2009

Generalized algebraic treatment for XY2 molecules : application to D2S.

2009

Rovibrational controlled-NOT gates using optimized stimulated Raman adiabatic passage techniques and optimal control theory

2009

International audience; Implementation of quantum controlled-NOT (CNOT) gates in realistic molecular systems is studied using stimulated Raman adiabatic passage (STIRAP) techniques optimized in the time domain by genetic algorithms or coupled with optimal control theory. In the first case, with an adiabatic solution (a series of STIRAP processes) as starting point, we optimize in the time domain different parameters of the pulses to obtain a high fidelity in two realistic cases under consideration. A two-qubit CNOT gate constructed from different assignments in rovibrational states is considered in diatomic (NaCs) or polyatomic (SCCl2) molecules. The difficulty of encoding logical states in…

Population transfer and superluminal propagation by bright‐state adiabatic passage.

2008

Monotonically convergent algorithm for the control of molecular dynamics under non-linear interaction with the control field

2009

Etude des états vibrationnels très excités des molécules de type XY3. Application à la phosphine et à l'arsine.

2007

Controle de l'orientation et de l'alignement moléculaire par un train d'impulsions soudaines

2006

On the "expanded local mode" approach applied to the methane molecule

2011

Methane (CH4 ) is one of the main prototypical hydrocarbons and is of great importance in a variety of applications ranging from our understanding of the chemical bonding, structure and quantum dynamics, reaction kinetics to geology, astrophysics, atmospheric and environmental science. On that reason, during more than five last decades both the vibrational and ro-vibrational spectra of methane were a subject of numerous studies (see, for example, M.Hippler and M.Quack, J. Chem. Phys. 116 (2002) 6045. and H.M.Niederer, S.Albert, S.Bauerecker, V.Boudon, J.P.Champion and M.Quack, Chimia 62 (2008) 273 where extensive references to spectroscopic and theoretical works can be found, the complete, …