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Patrick Regan

Patrick Regan

Scientist

Patrick Regan is an experimental physicist working in the Optical Frequency Metrology group within the Time and Frequency department. He joined NPL in January 2024, having completed an MSci degree at the University of Birmingham in Theoretical Physics. His master’s project explored resonating valence bond theory as an explanation for high temperature superconductivity. Prior to joining NPL, Patrick spent a year working at an engineering company, where he designed piezoelectric transducers. 

His work at NPL is focussed on the continuous improvement of the ytterbium ion optical clock. This work strives to make frequency measurements at the highest level of accuracy, with an aim to contribute to a future redefinition of the SI second.  

Patrick is a member of the Institute of Physics. 

Areas of interest 

  • Continuing improvement of the ytterbium ion optical clock 
  • Optical clocks and frequency metrology towards a redefinition of the SI second 
  • Using optical clocks for fundamental physics research, such as the detection of dark matter and the variation of the fine-structure constant. 
  • Clock comparison campaigns for international optical frequency metrology 

Key publications 

Email Patrick Regan

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