In situ imaging of the thermal de Broglie wavelength in an ultracold Bose gas

Jinggang Xiang, Enid Cruz-Colón, Candice C. Chua +4

We report the first in situ observation of density fluctuations on the scale of the thermal de Broglie wavelength in an ultracold gas of bosons. Bunching of ${}^{87}$Rb atoms in a qu…