The development of atom based clocks has revolutionized time and frequency standards. In addition, atoms have been used to realize exquisitely sensitive accelerometers, gravimeters, and magnetometers as well as EM wave detectors and quantum transducers. In this talk, we will review the use of ensembles of single atoms for vacuum metrology. Notably, we show that an atom is a self-calibrating quantum sensor that makes possible accurate pressure and flux measurements for any species in the ultra-high pressure regime (<10e-7 Pa).
Kirk W. Madison (British Columbia): A Quantum Sensor for Vacuum Metrology
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Foto: Barbara Mair