ABC...z Seminar Series: Thursday, November 9th: Hybrid traps, molecular ions, and radioactive qubits

Event Date: 

Thursday, November 9, 2017 - 3:45pm

Event Date Details: 

Refreshments served at 3:30pm.

Event Location: 

  • Broida 1640
  • ABC...z Seminar Series

Sympathetic cooling with laser-cooled atomic ions and neutral atoms promises to enable the production and study of trapped, ground state molecular ions. I will discuss recent progress along two fronts of this research. First, using atomic ions immersed in a laser-cooled neutral atom cloud we have explored the limits of kinematic cooling in an ion trap, finding a surprising bifurcation in the thermodynamic steady state that depends on the ion initial conditions. This work offers an explanation of some of the observed limits to sympathetic cooling in an ion trap. Second, we have recently observed and characterized the reaction of a polyatomic molecular ion with laser-cooled Ca atoms. The reaction exhibits an interesting dependence on electron spin and produces a novel (and somewhat surprising) non-stoichiometric molecule. I will conclude with a diversion into recent work with Prof. Wes Campbell at UCLA, where we have demonstrated trapping and laser cooling of a radioactive isotope of barium that holds promise for quantum information processing. The method of production of this ion may be of interest to the molecular ion community.

Eric Hudson, UCLA