In this article we describe the design, construction and implementation of our ion-atom hybrid system incorporating a high resolution time of flight mass spectrometer (TOFMS). Potassium atoms ( 39 K) in a Magneto Optical Trap (MOT) and laser cooled calcium ions ( 40 Ca + ) in a linear Paul trap are spatially overlapped and the combined trap is integrated with a TOFMS for radial extraction and detection of reaction products. We also present some experimental results showing interactions between 39 K + and 39 K, 40 Ca + and 39 K + as well as 40 Ca + and 39 K pairs. Finally, we discuss prospects for cooling CaH + molecular ions in the hybrid ion-atom system.
This work presents a stable and reliable turnkey continuous-wave laser system for a Yb/Ba multi-species trapped-ion quantum computer. The compact and rack-mountable optics system exhibits high robustness, operating over a year without realignment, regardless of temperature changes in the laboratory. The overall optical system is divided into a few isolated modules interconnected by optical fibers for easy maintenance. The light sources are frequency-stabilized by comparing their frequency with two complementary references, a commercial Fizeau wavelength meter and a high-finesse optical cavity. This scheme enables automatic frequency-stabilization for days with a sub-MHz precision.INDEX TERMS Laser stability, optical design, quantum computing, trapped ions.
We present the hardware design of a trapped-ion quantum computer for 32 fully-connected 171Yb+ hyperfine qubits. The system is engineered for optomechanical stability to ensure high performance quantum gates utilizing a low vibration cryostat.
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