Precision measurement of atom-dimer interaction in a uniform planar Bose gas

C Maury, B Bakkali-Hassani, G Chauveau, F Rabec… - Physical Review …, 2023 - APS
Cold quantum gases, when acted upon by electromagnetic fields, can give rise to samples
where isolated atoms coexist with dimers or trimers, which raises the question of the …

Dynamical excitation processes and correlations of three-body two-dimensional mixtures

G Bougas, SI Mistakidis, P Giannakeas, P Schmelcher - Physical Review A, 2022 - APS
A scheme is proposed to dynamically excite distinct eigenstate superpositions in three-body
Bose-Fermi mixtures confined in a two-dimensional harmonic trap. The system is initialized …

Theoretical investigation of an ultracold atom-dimer reaction for three identical bosons

ZB Chen, JL Li, SL Cong - Physical Review A, 2023 - APS
We study the atom-dimer collision reaction for a three bosonic Li 7 system using a
multichannel model. We calculate the atom-dimer scattering length and dimer relaxation rate …

Cold-atom–dimer reaction rates with , and

MA Shalchi, MT Yamashita, T Frederico, L Tomio - Physical Review A, 2020 - APS
Atom-dimer exchange and dissociation reaction rates are predicted for different
combinations of two He 4 atoms and one of the alkaline species among Li 6, Li 7, and Na …

Probing few and many-body physics in a planar Bose gas: Atom-dimer interactions and zero-temperature superfluid fraction

C Maury - 2023 - theses.hal.science
Dimensionality plays an important role in physical systems. A gas of ultracold atoms
confined in a two-dimensional geometry has very different thermodynamic properties from …

Observation of a threshold behavior in an ultracold endothermic atom-exchange process involving Feshbach molecules

YX Liu, J Nan, DC Zhang, L Liu, H Yang, J Rui, B Zhao… - Physical Review A, 2019 - APS
We report on the investigation of endothermic and nearly thermoneutral atom-exchange
collisions in an ultracold atom-dimer mixture. By developing an indirect preparation method …

Emergence of N-body tunable interactions in universal few-atom systems

MT Yamashita, T Frederico, L Tomio - Brazilian Journal of Physics, 2021 - Springer
A three-atom molecule AAB, formed by two identical bosons A and a distinct one B, is
studied by considering coupled channels close to a Feshbach resonance. It is assumed that …

Universality in the atom-exchange reaction involving Feshbach molecules

J Nan, YX Liu, DC Zhang, L Liu, H Yang, B Zhao… - Physical Review A, 2019 - APS
We study the atom-exchange reaction involving Feshbach molecules in the overlapping
Feshbach resonance at about 106.8 G in the Na 23 K 40 system. We measure the reaction …

Path of Momentum Integral in the Skorniakov-Ter-Martirosian Equation

C Gao, P Zhang - Communications in Theoretical Physics, 2018 - iopscience.iop.org
Abstract The Skorniakov-Ter-Martirosian (STM) integral equation is widely used for the
quantum three-body problems of low-energy particles (eg, ultracold atom gases). With this …