232 citations · 622 across the 10 of their papers we have counts for
6 papers · 1 filter
Measurement of the variation of electron-to-proton mass ratio using ultracold molecules produced from laser-cooled atoms
Jun Kobayashi, Atsushi Ogino, Shin Inouye
Experimental techniques to manipulate cold molecules have seen great development in recent years. The precision measurements of cold molecules are expected to give insights into fu…
Isotopic shift of atom-dimer Efimov resonances in K-Rb mixtures: Critical effect of multichannel Feshbach physics
K. Kato, Yujun Wang, J. Kobayashi +2
The multichannel Efimov physics is investigated in ultracold heteronuclear admixtures of K and Rb atoms. We observe a shift in the scattering length where the first atom-dimer reso…
Prospects for Narrow-line Cooling of KRb Molecules in Rovibrational Ground State
J. Kobayashi, K. Aikawa, K. Oasa +1
We propose and experimentally investigate a scheme for narrow-line cooling of KRb molecules in the rovibrational ground state. We show that the spin-forbidden $\mathrm{X^1Σ^+} \rig…
Predicting and verifying transition strengths from weakly bound molecules
K. Aikawa, D. Akamatsu, M. Hayashi +3
We investigated transition strengths from ultracold weakly bound 41K87Rb molecules produced via the photoassociation of laser-cooled atoms. An accurate potential energy curve of th…
Coherent transfer of photoassociated molecules into the rovibrational ground state
K. Aikawa, D. Akamatsu, M. Hayashi +6
We report on the direct conversion of laser-cooled 41K and 87Rb atoms into ultracold 41K87Rb molecules in the rovibrational ground state via photoassociation followed by stimulated…
Direct evaporative cooling of 41K into a Bose-Einstein condensate
T. Kishimoto, J. Kobayashi, K. Noda +3
We have investigated the collisional properties of 41K atoms at ultracold temperature. To show the possibility to use 41K as a coolant, a Bose-Einstein condensate of 41K atoms in t…