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, Williams H, Fitch N, et al., Long rotational coherence times of molecules in a magnetic trap, Physical Review Letters, Vol:124, ISSN:0031-9007

Caldwell L, Tarbutt M, Sideband cooling of molecules in optical traps, Physical Review Research, ISSN:2643-1564

Sawant R, Blackmore JA, Gregory PD, et al., 2020, Ultracold polar molecules as qudits, New Journal of Physics, Vol:22, ISSN:1367-2630

Wright S, Wall T, Tarbutt M, Microwave trap for atoms and molecules, Physical Review Research, ISSN:2643-1564

Caldwell L, Devlin J, Williams H, et al., 2019, Deep Laser Cooling and Efficient Magnetic Compression of Molecules, Physical Review Letters, Vol:123, ISSN:0031-9007

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