8 papers
Characterization of Feshbach resonances in using improved interaction potentials
Jing-Chen Zhang, Paul Julienne, Yu Liu
We characterize Feshbach resonances in all isotopologues of the system with improved interaction potentials. Starting from spectroscopically accurate Mo…
Lellouch-Lüscher relation for ultracold few-atom systems under confinement
Jing-Lun Li, Paul S. Julienne, Johannes Hecker Denschlag +1
We derive an analog of the Lellouch-Lüscher (LL) relation for few-body bosonic systems, linking few-body scattering loss rates to the energies and widths of the corresponding harm…
Isotopic effect on collisional widths and shifts of Hg clock transition induced by cold Rb atoms
Renu Bala, Adam Linek, Marcin Witkowski +7
We study the isotopic dependence of collisional widths and shifts of the Hg clock transition S-P perturbed by the Rb atoms in the temperature range from 1 nK to 1 K…
Dimer-projection contact and the clock shift of a unitary Fermi gas
Kevin G. S. Xie, Colin J. Dale, Kiera Pond Grehan +5
Understanding the dynamics of short-range correlations is a central challenge in strongly interacting Fermi gases. In ultracold gases, these correlations are quantified by the cont…
Steering reaction flux by coupling product channels
Dominik Dorer, Shinsuke Haze, Jing-Lun Li +5
We demonstrate a method for controlling the outcome of an ultracold chemical few-body reaction by redirecting a tunable fraction of reaction flux from one selected product channel…
Controlling few-body reaction pathways using a Feshbach resonance
Shinsuke Haze, Jinglun Li, Dominik Dorer +5
Gaining control over chemical reactions on the quantum level is a central goal of the modern field of cold and ultracold chemistry. Here, we demonstrate a novel method to coherentl…