0000000001082133
AUTHOR
Hans-rudolf Jauslin
showing 14 related works from this author
Process of velocity locking of nonlinear incoherent waves in an optical fiber
2006
International audience
KAM techniques and resonances
2004
International audience
On the topology of adiabatic passage
2002
We examine the topology of eigenenergy surfaces characterizing the population transfer processes based on adiabatic passage. We show that this topology is the essential feature for the analysis of the population transfers and the prediction of its final result. We reinterpret diverse known processes, such as stimulated Raman adiabatic passage (STIRAP), frequency-chirped adiabatic passage and Stark-chirped rapid adiabatic passage (SCRAP). Moreover, using this picture, we display new related possibilities of transfer. In particular, we show that we can selectively control the level which will be populated in STIRAP process in Lambda or V systems by the choice of the peak amplitudes or the pul…
The U(p+1) Formalism Applied to The Vibrational Hamiltonians of Nonlinear AB2 Molecules
2000
Singular tori as attractors of four-wave interaction systems
2010
International audience
Influence of Unequal Oscillator Strenghts on Stimulated Raman Adiabatic Passage through Bright State
2011
The problem of the coherent control of atomic states, preparation of atoms in a stable superposition state, and atomic population transfer has attracted much attention in the last decade. One of the main motivations is associated with the rapid development of the field of quantum computing. One of the key problems of quantum information processing is the construction of given coherent superposition atomic states in a macroscopic volume. Stimulated Raman adiabatic passage (STIRAP) [1] is considered to be the most common method for atomic population transfer in quantum systems. Being analyzed in detail on various quantum systems from both theoretical and experimental points of view, this meth…
From atomic to molecular Bose-Einstein condensates: a physically realizable term-crossing model for cold atom association
2010
Using an exact third-order NL di®erential equation for the molecular state probability, we develop a variational approach which enables us to construct highly accurate analytic approximations describing time dynamics of the coupled atom-molecular system in each of the interaction regimes. We show that the approximation describing time evolution of the molecular state probability both in the weak interaction limit and in the large detuning regime of the strong interaction limit can be written as a sum of two distinct terms; the ¯rst one, being a solution to a limit ¯rst-order NL equation, e®ectively describes the process of the molecule formation while the second one, being a scaled solution…
Rotational excitation with femtosecond pulses : from high resolution spectroscopy to molecular alignment
2005
International audience
Fermi-type interaction in molecular and atomic Hamiltonians. Application to molecular systems and Bose-Einstein condensates.
2008
International audience; We present a simple prescription to build phenomenological Hamiltonians describing Fermi-type interactions and apply the developed formalism to two distinct physical systems. First, in a very simple way, we derive equations describing time dynamics of two coherently coupled Bose-Einstein condensates. Further, for bent XY2 molecules, we reproduce all the experimental data with an excellent precision.
The U(p+1) Formalism Applied to The Vibrational Hamiltonians of Nonlinear ABC Molecules
2000
Uniform analytic description of dephasing effects in two-state transitions
2007
International audience
Verrouillage de vitesses d'ondes non-linéaires incohérentes dans une fibre optique
2006
National audience