368 citations · 942 across the 22 of their papers we have counts for
24 papers
Rotational laser spectroscopy of the transition of molecule in a supersonic beam: As good as it gets
David Rodríguez Fernández, Manuel Alejandro Lefrán Torres, Jaime Javier Borges Márquez +6
High-resolution laser spectroscopy of the , , and isotopologues has been performed in a supersonic molecu…
Quantum study of ultracold atom-ion excitation exchange
Tibor Jónás, Romain Vexiau, Nadia Bouloufa-Maafa +3
The quantum dynamics of ultracold collisions between rubidium atoms and excited metastable strontium ions is treated in the laboratory frame, enlightening the importance of the cou…
An Alternate Pathway for H Formation in the Early Universe: A physical process to account for the presence and coevolution of the luminous galaxies and supermassive black holes at the high redshifts
Amrendra Pandey, Olivier Dulieu, Nadia Bouloufa-Maafa
Molecular hydrogen (H) and hydrogen deuteride (HD) are key coolants in primordial gas and regulate the formation of the first stars and proto-galaxies. Recent results from the…
Two-photon-assisted collisions in ultracold gases of polar molecules II : Optical shielding of ultracold polar molecular collisions
Gohar Hovhannesyan, Charbel Karam, Romain Vexiau +4
We theoretically investigate the collisions between ultracold polar molecules in the presence of two lasers ensuring a Raman resonant transition on individual molecules to suppress…
Two-photon-assisted collisions in ultracold gases of polar molecules
Charbel Karam, Gohar Hovhannesyan, Romain Vexiau +3
We present a theoretical formalism to treat the ultracold dynamics of a pair of colliding polar molecules submitted to two laser fields. We express the dressed Hamiltonian includin…
Ultracold charged atom-dimer collisions: state-selective charge exchange and three-body recombination
Amrendra Pandey, Romain Vexiau, Luis Gustavo Marcassa +2
Based on an accurate determination of the potential energy surfaces of Rb correlated to its first asymptotic limit RbRb()Rb(), we identify the presence of i…
Competing excitation quenching and charge exchange in ultracold Li-Ba collisions
Xiaodong Xing, Pascal Weckesser, Fabian Thielemann +9
Hybrid atom-ion systems are a rich and powerful platform for studying chemical reactions, as they feature both excellent control over the electronic state preparation and readout a…
Two-photon optical shielding of collisions between ultracold polar molecules
Charbel Karam, Mara Meyer zum Alten Borgloh, Romain Vexiau +5
We propose a method to engineer repulsive long-range interactions between ultracold ground-state molecules using optical fields, thus preventing short-range collisional losses. It…
Ion loss events in a cold Rb-Ca hybrid trap: photodissociation, black-body radiation and non-radiative charge exchange
Xiaodong Xing, Humberto da Silva, Romain Vexiau +3
We theoretically investigate the collisional dynamics of laser-cooled Rb ground-state atoms and Ca ground-state ions in the context of the hybrid trap experiment…
Study of excited electronic states of the KCs molecule correlated with the K(S)+Cs(D) asymptote: experiment and theory
Jacek Szczepkowski, Anna Grochola, Wlodzimierz Jastrzebski +4
Using the polarisation labelling spectroscopy, we performed the detailed analysis of the level structure of excited electronic states of the KCs molecule in the excitation e…
Engineering long-range interactions between ultracold atoms with light
T. Xie, A. Orbán, X. Xing +4
Ultracold temperatures in dilute quantum gases opened the way to an exquisite control of matter at the quantum level. Here we focus on the control of ultracold atomic collisions us…
Characterization of the lowest excited-state ro-vibrational level of NaRb
Junyu He, Junyu Lin, Romain Vexiau +3
Starting from an ultracold sample of ground-state NaRb molecules, we investigate the lowest ro-vibrational level of the state with high resolution laser spectr…
Direct observation of bimolecular reactions of ultracold KRb molecules
Ming-Guang Hu, Yu Liu, David D. Grimes +7
Femtochemistry techniques have been instrumental in accessing the short time scales necessary to probe transient intermediates in chemical reactions. Here we take the contrasting a…
Coherent multidimensional spectroscopy of dilute gas-phase nanosystems
Lukas Bruder, Ulrich Bangert, Marcel Binz +5
Two-dimensional electronic spectroscopy (2DES) is one of the most powerful spectroscopic techniques, capable of attaining a nearly complete picture of a quantum system including it…
High Resolution Molecular Spectroscopy for Producing Ultracold Absolute Ground-State NaRb Molecules
Mingyang Guo, Romain Vexiau, Bing Zhu +4
We report a detailed molecular spectroscopy study on the lowest excited electronic states of for producing ultracold molecules…
Dynamic dipole polarizabilities of heteronuclear alkali dimers: optical response, trapping and control of ultracold molecules
R. Vexiau, D. Borsalino, M. Lepers +4
In this article we address the general approach for calculating dynamical dipole polarizabilities of small quantum systems, based on a sum-over-states formula involving in principl…
Creation of an ultracold gas of ground-state molecules
Mingyang Guo, Bing Zhu, Bo Lu +7
We report the successful production of an ultracold sample of absolute ground-state NaRb molecules. Starting from weakly-bound Feshbach molecules formed via magneto-a…
Long-range states of the NaRb molecule near the Na()+Rb() asymptote
Bing Zhu, Xiaoke Li, Xiaodong He +6
We report a high-resolution spectroscopic investigation of the long-range states of the NaRb molecule near its Na()+Rb() asymptote. This study…
Model for the hyperfine structure of electronically-excited molecules
A. Orbán, R. Vexiau, O. Krieglsteiner +4
A model for determining the hyperfine structure of the excited electronic states of diatomic bialkali heteronuclear molecules is formulated from the atomic hyperfine interactions,…
Long-range interactions between polar bialkali ground-state molecules in arbitrary vibrational levels
R. Vexiau, M. Lepers, M. Aymar +2
We have calculated the isotropic coefficients characterizing the long-range van der Waals interaction between two identical heteronuclear alkali-metal diatomic molecules in…
Polarizability of ultracold molecules in the rovibrational ground state of
Markus Deiß, Björn Drews, Johannes Hecker Denschlag +3
We study, both theoretically and experimentally, the dynamical polarizability of molecules in the rovibrational ground state of . Taking a…
Triplet-singlet conversion by broadband optical pumping
Ridha Horchani, Hans Lignier, Nadia Bouloufa-Maafa +3
We demonstrate the conversion of cold Cs_{2} molecules initially distributed over several vibrational levels of the lowest triplet state a^{3}Σ_{u}^{+} into the singlet ground stat…
Formation of ultracold RbCs molecules by photoassociation
N. Bouloufa-Maafa, M. Aymar, O. Dulieu +1
The formation of ultracold metastable RbCs molecules is observed in a double species magneto-optical trap through photoassociation below the ^85Rb(5S_1/2)+^133Cs(6P_3/2) dissociati…
Light-assisted ion-neutral reactive processes in the cold regime: radiative molecule formation vs. charge exchange
Felix H. J. Hall, Mireille Aymar, Nadia Bouloufa-Maafa +2
We present a combined experimental and theoretical study of cold reactive collisions between laser-cooled Ca+ ions and Rb atoms in an ion-atom hybrid trap. We observe rich chemical…