368 citations · 942 across the 27 of their papers we have counts for
29 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…
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…
Hyperfine-resolved optical spectroscopy of ultracold RbCs molecules: the metastable state
Arpita Das, Albert Li Tao, Luke M. Fernley +6
Using an ultracold gas of RbCs molecules, we perform hyperfine-resolved spectroscopy of transitions from the vibronic ground state to the lowest rovibrational states…
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…
Associative ionization in a dilute ultracold Li gas probed with a hybrid trap
N. Joshi, Vaibhav Mahendrakar, M. Niranjan +6
The formation of Li and subsequently Li ions, during the excitation of Li atoms to the state in a Li magneto optical trap (MOT), is probed in an ion-at…
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…
Interaction potentials and ultracold scattering cross sections for the Li-Li ion-atom system
A. Pandey, M. Niranjan, N. Joshi +3
We calculate the isotope independent Li-Li potential energy curves for the electronic ground and first excited states. Scattering phase shifts and total scattering cross sectio…
Strong angular-momentum mixing in ultracold atom-ion excitation-exchange
Ruti Ben-Shlomi, Romain Vexiau, Ziv Meir +5
Atom-ion interactions occur through the electric dipole which is induced by the ion on the neutral atom. In a Langevin collision, in which the atom and ion overcome the centrifugal…
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…
Quasi-1D ultracold rigid-rotor collisions : reactive and non-reactive cases
Romain Vexiau, Jean-Michel Launay, Andrea Simoni
We study polar alkali dimer scattering in a quasi-1D geometry for both reactive and non-reactive species. Elastic and reactive rates are computed as a function of the amplitude of…
Dipolar Collisions of Ultracold Ground-state Bosonic Molecules
Mingyang Guo, Xin Ye, Junyu He +4
The dipolar collision between ultracold polar molecules is an important topic both by its own right from the fundamental point of view and for the successful exploration of many-bo…
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…
Photodissociation of trapped Rb : Implications for simultaneous trapping of atoms and molecular ions
S. Jyothi, Tridib Ray, Sourav Dutta +4
The direct photodissociation of trapped Rb (rubidium) molecular ions by the cooling light for the Rb magneto-optical trap (MOT) is studied, both experimentally…