Publications
2025
Blackburn, L., Shepherd, A., Keller, M.K, Fast switching of the rf trapping field in an ion trap. New Journal of Physics, 27, 045001 (2025).
2024
Kay D.J., Snowden, S.J., Stutter G., Keller, M.K, Micro-mirror laser machining for ultra-low birefringence cavities. Optica, 32, 24 (2024).
2023
Fernandez-Gonzalvo, X., Keller, M., A fully fiber-integrated ion trap for portable quantum technologies. Science Reports, 13, 523 (2023).
2022
Barontini, G., Blackburn, L., Boyer, V., Butuc-Mayer, F., Calmet, X., Crespo López-Urrutia, J. R., Curtis, E. A., Darquié, B., Dunningham, J., Fitch, N. J., Morgan, E. M., Georgiou, K., Gill, P., Godun, R. M., Goldwin, J., Guarrera, V., Harwood, A. C., Hill, I. R., Hendricks, R. J., Jeong, M., Johnson, M. Y. H., Keller, M., Kozhiparambil Sajith, L. P., Kuipers, F., Margolis, H. S., Mayo, C., Newman, P., Parsons, A. O., Prokhorov, L., Robertson, B. I., Rodewald, J., Safronova, M. S., Sauer, B. E., Schioppo, M., Sherill, N., Stadnik, Y. V., Szymaniec, K., Tarbutt, M. R., Thompson, R. C., Tofful, A., Tunesi, J., Vecchio, A., Wang, Y., & Worm, S., Measuring the stability of fundamental constants with a network of clocks. EPJ Quantum Technology, 9(12) (2022).
Keller, M., Cavity-QED with single trapped ions. Contemporary Physics, 63(1) (2022).
Keller, M., & Ward, T., Generation of time-bin-encoded photons in an ion-cavity system. New Journal of Physics, 24, 123028 (2022).
Teixeira, W., Keller, M., & Semião, F., Pulsed multireservoir engineering for a trapped ion with applications to state synthesis and quantum Otto cycles. New Journal of Physics, 24, 023027 (2022).
2021
Barontini, G., Boyer, V., Calmet, X., Fitch, N. J., Forgan, E. M., Godun, R. M., Goldwin, J., Guarrera, V., Hill, I. R., Jeong, M., Keller, M., Kuipers, F., Margolis, H. S., Newman, P., Prokhorov, L., Rodewald, J., Sauer, B. E., Schioppo, M., Sherrill, N., Tarbutt, M. R., Vecchio, A., & Worm, S., QSNET, a network of clocks for measuring the stability of fundamental constants. Proceedings 11881, Quantum Technology: Driving commercialisation of an Enabling science II (2021).
2020 Blackburn, L., & Keller, M., The effect of the electric trapping field on state-selective loading of molecules into rf ion traps. Scientific Reports, 10, 18449 (2020). Walker, T., Kashanian, S., Ward, T., & Keller, M., Improving the indistinguishability of single photons from an ion-cavity system. Physical Review A, 102(3) (2020).
Christoforou, C. M., Pignot, C., Kassa, E., Takahashi, H., & Keller, M., Enhanced ion–cavity coupling through cavity cooling in the strong coupling regime. Scientific Reports, 10, 15693 (2020).
The datasets for the figures are available on .
Peerzada, A., Jobson, C. M., Kassa, E., Morphew, J., Fernandez-Gonzalvo, X., & Keller, M., Versatile optical fiber feedthroughs for ultra-high vacuum applications. Vacuum,180, ISSN 0042-207X (2020).
Savelli, G., Colonna, J-P., Keller, M., Coudrain, P., Wendler, D., Goeppert, J., Manoli, Y., Faucherand, P., & Royer, A., Integrated thermoelectric sensors based on quantum dot superlattice for thermal management applications. Journal of Physics D: Applied Physics, 53(44) (2020).
Takahashi, H., Kassa, E., Christoforou, C., & Keller, M., Strong coupling of a single ion to an optical cavity. Physical Review Letters, 124(1) (2020).
The datasets for the figures are available .
2019
Gardner, A., Softley, T., & Keller, M., Multi-photon ionisation spectroscopy for rotational state preparation of N+2. Scientific Report, 9, 506 (2019). 2018
Foot, C. J., Trypogeorgos, D., Bentine, E., Gardner, A., & Keller, M., Two-frequency operation of a Paul trap to optimise confinement of two species of ions. International Journal of Mass Spectrometry, 430, 117-125 (2018). Kassa, E., Takahashi, H., Christoforou, C., & Keller, M., Precise positioning of an ion in an integrated Paul trap-cavity system using radiofrequency signals. Journal of Modern Optics, 65(5-6), 520-528 (2018). Wagner, R., Guzman, F., Chijioke, A., Gulati, G., Keller, M., & Shaw, G., Direct measurement of radiation pressure and circulating power inside a passive optical cavity. Optica Express, 26(18) (2018). Walker, T., Miyanishi, K., Ikuta, R., Takahashi, H., Vartabi Kashanian, S., Tsujimoto, Y., Hayasaka, K., Yamamoto, T., Imoto, N., & Keller, M., Long-distance single photon transmission from a trapped ion via quantum frequency conversion. Physical Review Letters, 120(20) (2018). 2017
Gulati, G. K., Takahashi, H., Podoliak, N., Horak, P., & Keller, M., Fiber cavities with integrated mode matching optics. Scientific Reports 7, 5566 (2017). Podoliak, N., Takahashi, H., Keller, M., & Horak, P., Harnessing the mode mixing in optical fiber-tip cavities. Journal of Physics B: Atomic, Molecular and Optical Physics, 50 (2017). Takahashi, H., Kassa, E., Christoforou, C., & Keller, M., Cavity-induced anticorrelated photon-emission rates of a single ion. Physical Review A, 96(2) (2017). Takahashi, H., Nevado, P., & Keller, M., Mølmer–Sørensen entangling gate for cavity QED systems. Journal of Physics B: Atomic, Molecular and Optical Physics, 50 (2017).
2016
Begley, S., Vogt, M., Kaur Gulati, G., Takahashi, H., & Keller M., Optimized multi-ion cavity coupling. Physical Review Letters, 116(22), 223001 (2016). Márquez Seco, A., Takahashi, H., & Keller, M., Novel ion trap design for strong ion-cavity coupling. Atoms, 4(2) (2016). Podoliak, N., Takahashi, H., Keller, M., & Horak, P., Comparative numerical studies of ion traps with integrated optical cavities. Physical Review Applied, 6(4) (2016). 2015
Deb, N., Pollum, L. L., Smith, A. D., Keller, M., Rennick, C. J., Heazlewood, B, R., & Softley, T.P., Coulomb crystal mass spectrometry in a digital ion trap. Physical Review A, 91(3) (2015). 2014
2013
Keller, M., Interfacing atoms and light - The smaller the stronger. Science (Perspective), 340(6137), 1175-1176 (2013).
Takahashi, H., Wilson, A., Riley-Watson, A., Orucevic, F., Seymour-Smith, N., Keller, M., & Lange, W., An integrated fiber trap for single-ion photonics. New Journal of Physics, 15 (2013).
2012
Brama, E., Mortensen, A., Keller, M., & Lange, W., Heating rates in a thin ion trap for microcavity experiments. Applied Physics B, 107, 945-954 (2012).
Sheridan, K., Seymour-Smith, N., Gardner, A., & Keller, M., All-optical broadband excitation of the motional state of trapped ions. The European Physical Journey, 66, 289 (2012).
2011
Sheridan, K., & Keller., M., Weighing of trapped ion crystals and its applications. New Journal of Physics, 13 (2011).
Sheridan, K., Lange, W., & Keller, M., All-optical ion generation for ion trap loading. Applied Physics B, 104, 755-761 (2011).
2010
Seymour-Smith, N., Blythe, P., Keller, M., & Lange, W., Fast scanning cavity offset lock for laser frequency drift stabilization. Review of Scientific Instruments, 81, 075109 (2010) .
2007
Keller, M., Lange, B., Hayasaka, K., Lange, W., & Walther, H., Stable long-term coupling of a single ion to a cavity mode. Journal of Modern Optics, 54(11), 1607-1617 (2007).
2005
Keller, M., Lange, B., Hayasaka, K., Lange, W., & Walther, H., Long-term stability of continuous-wave emission from an ion-cavity system. The European Physical Journal, 32, 161-166 (2005).