James joined King’s in 2018 as a Lecturer in Advanced Photonics, founding the Levitated Nanophysics group. In 2017 James was awarded the David Bates Prize for his pioneering contributions to experimental and theoretical quantum optomechanics.
He completed his MSc in Physics at Imperial College London in 2007, and his Ph. D. in experimental atomic physics at Durham University in 2011, under the supervision of Dr. M. P. A. Jones. During this work he created the world’s first gas of ultra-cold strontium Rydberg atoms.
In 2011 James moved to University College London, to work with Prof. Peter Barker in the new field of levitated optomechanics. In pioneering work, they used focussed laser beams and optical cavities to cool and control the motion of charged silica nanoparticles. Together with Dr. Janet Anders they undertook a paradigmatic study into the non-equilibrium dynamics of a Brownian particle.
James was awarded a Marie Skłodowska-Curie Research Fellowship to work in the Quantum Nanophysics group of Prof. Markus Arndt at the University of Vienna between 2015-2018. The group developed techniques which will enable the exploration of the mass limit of quantum physics in uncharted regimes. While in Vienna, James pioneered the study of rotational optomechanics, developing the most frequency stable mechanical object ever created.
To complement his research, James has fostered a keen interest in Outreach, Public Engagement, and Science Communication, and is currently Lecturer in Quantum Theory to the Public at the Royal Institution. He runs The Quantum Workshop mobile experiment, has written for the Guardian and Physics World, and has acted as scientific advisor for two BBC documentaries. More details can be found on his personal websites:
- Opto- and electro-mechanics
- Macroscopic quantum physics
D'Urso, B. & Millen, J., 21 Sep 2020, (Accepted/In press) In : Nature Physics. Research output: Contribution to journal - Comment/debate. DOIs: https://doi.org/10.1038/s41567-020-1020-8
Rademacher, M., Millen, J. & Li, Y., 20 Jul 2020, (Accepted/In press) In : Advanced Optical Technologies. Research output: Contribution to journal - Review article
Millen, J., Monteiro, T. S., Pettit, R. & Vamivakas, A. N., 1 Feb 2020, In : Reports on progress in physics. Physical Society (Great Britain). 83, 2, 1 p., 026401. Research output: Contribution to journal - Review article. DOIs: https://doi.org/10.1088/1361-6633/ab6100
Wachter, G., Kuhn, S., Minniberger, S., Salter, C., Asenbaum, P., Millen, J., Schneider, M., Schalko, J., Schmid, U., Felgner, A., HÃ¼ser, D., Arndt, M. & Trupke, M., 10 Apr 2019, In : Light: Science and Applications. 8, 1, 37. Research output: Contribution to journal - Letter. DOIs: https://doi.org/10.1038/s41377-019-0145-y
Goldwater, D., Stickler, B., Martinetz, L., Northup, T., Hornberger, K. & Millen, J. N., 22 Jan 2019, In : Quantum Science and Technology. 4, 2, 10 p., 024003. Research output: Contribution to journal - Article. DOIs: https://doi.org/10.1088/2058-9565/aaf5f3
Gieseler, J. & Millen, J., 28 Apr 2018, In : Entropy. 20, 5, p. 326 Research output: Contribution to journal - Review article. DOIs: https://doi.org/10.3390/e20050326
Millen, J. & Gieseler, J., 1 Jan 2018, Fundamental Theories of Physics. SPRINGER, p. 853-885 33 p. (Fundamental Theories of Physics; vol. 195). Research output: Chapter in Book/Report/Conference proceeding - Chapter. DOIs: https://doi.org/10.1007/978-3-319-99046-0_35
Stickler, B. A., Papendell, B., Kuhn, S., Schrinski, B., Millen, J., Arndt, M. & Hornberger, K., 2018, In : NEW JOURNAL OF PHYSICS. 20, p. 1-10 10 p., 122001. Research output: Contribution to journal - Article. DOIs: https://doi.org/10.1088/1367-2630/aaece4
Kuhn, S., Wachter, G., Wieser, F-F., Millen, J., Schneider, M., Schalko, J., Schmid, U., Trupke, M. & Arndt, M., Dec 2017, In : APPLIED PHYSICS LETTERS. 111, 25, p. 253107-1-253107-4 253107. Research output: Contribution to journal - Article. DOIs: https://doi.org/10.1063/1.5008492
Kuhn, S., Stickler, B. A., Kosloff, A., Patolsky, F., Hornberger, K., Arndt, M. & Millen, J., Nov 2017, In : Nature Communications. 8, 1, 1670. Research output: Contribution to journal - Article. DOIs: https://doi.org/10.1038/s41467-017-01902-9