Imperial College London


Faculty of Natural SciencesDepartment of Physics

Professor of Experimental Physics



+44 (0)20 7594 7741m.tarbutt




207Blackett LaboratorySouth Kensington Campus





Research Interests

My interests are in the formation and application of cold and ultracold molecules.

  • Stark deceleration of cold polar molecules
  • Buffer gas cooling and magnetic guiding of molecules
  • Sympathetic cooling of cold molecules with ultracold atoms
  • Using cold, polar molecules to measure the electric dipole moment of the electron
  • Using ultracold polar molecules to study the physics of highly correlated quantum matter



Caldwell L, Tarbutt MR, 2021, General approach to state-dependent optical-tweezer traps for polar molecules, Physical Review Research, Vol:3

Tarbutt M, Caldwell L, 2021, A general approach to state-dependent optical tweezer traps for polar molecules, Physical Review Research, ISSN:2643-1564

Fitch NJ, Lim J, Hinds EA, et al., 2021, Methods for measuring the electron's electric dipole moment using ultracold YbF molecules, Quantum Science and Technology, Vol:6, ISSN:2058-9565

Caldwell L, Tarbutt MR, 2020, Enhancing dipolar interactions between molecules using state-dependent optical tweezer traps, Physical Review Letters, Vol:125, ISSN:0031-9007, Pages:243201 – 1-243201 – 6

Hughes M, Frye MD, Sawant R, et al., 2020, Robust entangling gate for polar molecules using magnetic and microwave fields, Physical Review A, Vol:101, ISSN:2469-9926, Pages:062308-1-062308-12

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