17-22 July 2022
Royal Conservatory of Music, Toronto
America/Toronto timezone

Simultaneous trapping and cooling of sodium and potassium atoms towards quantum degeneracy

18 Jul 2022, 17:00
1h 30m
Hart House (Hart House)

Hart House

Hart House

7 Hart House Cir, Toronto, ON M5S 3H3
Poster presentation Degenerate gases, many-body physics, and quantum simulation Poster session


Mr Sagar Sutradhar (Ph.D. Student)


We present the design, implementation and characterization of a new dual-species cold atomic mixture of $^{39}$K and $^{23}$Na with a large number of atoms. The dual species Magneto Optical Trap (MOT) has more than 10$^{10}$ $^{39}$K atoms and 5$\times$10$^9$ $^{23}$Na atoms, which are simultaneously loaded using two independent 2D$^+$MOT with high cold atomic beam flux. The dual cold atomic clouds were further cooled to tens of $\mu$K via sub-Doppler cooling and Gray molasses technique. The $^{23}$Na and $^{39}$K atoms are thereafter transferred into a quadrupole magnetic trap and transported towards the “Science cell” for further experiments. This versatile experimental system provides a favourable starting point for the realization of the quantum degenerate Bose-Bose mixture for quantum simulation with ultracold quantum gases in optical potentials.

Presenter name Sagar Sutradhar

Primary author

Mr Sagar Sutradhar (Ph.D. Student)


Mr Subhajit Bhar (Raman Research Institute) Ms Shreya Bagchi (Raman Research Institute) Mr Bidyut Bikash Boruah (Raman Research Institute) Mr Anirban Misra (Raman Research Institute) Mr Gourab Pal (Raman Research Institute) Dr Sanjukta Roy (Raman Research Institute) Dr Saptarishi Chaudhuri (Raman Research Institute)

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