Travis Nicholson Group

My research experimentally and theoretically explores quantum information, quantum optics, atomic physics, and quantum metrology. My experiments are based on ultracold atoms, which I use to study storing, transmitting, processing, and reading out quantum information. I also use exotic ultracold matter to explore novel atomic physics. My theoretical work focuses on using quantum optics to design technology that has a quantum advantage over classical systems. I also theoretically investigate quantum metrology, with a focus on improving global timekeeping and advancing quantum measurement.

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Travis Nicholson is a Principal Investigator at the Centre for Quantum Technologies and an Assistant Professor of Physics at NUS. He performed his PhD research at JILA in the United States. His PhD thesis demonstrated the world's most accurate atomic clock, which neither gains nor loses a second in 15 billion years. After this he was a postdoctoral fellow at MIT, studying nonlinear quantum optics with Rydberg atoms. Travis joined the CQT in 2017.

Group Members

Recent papers

  • Haonan Liu, Simon B. Jäger, Xianquan Yu, Steven Touzard, Athreya Shankar, Murray J. Holland, T.Nicholson. (2020). Rugged mHz-Linewidth Superradiant Laser Driven by a Hot Atomic Beam. Phys. Rev. Lett. 125 253602
  • Qi-Yu Liang, Aditya V. Venkatramani, Sergio H. Cantu, T.Nicholson, Michael J. Gullans, Alexey V. Gorshkov, Jeff D. Thompson, Cheng Chin, Mikhail D. Lukin, Vladan Vuletic. (2018). Observation of three-photon bound states in a quantum nonlinear medium. Science 359 783
  • T.Nicholson, S.L. Campbell, R.B. Hutson, G.E. Marti, B.J. Bloom, R.L. McNally, W. Zhang, M.D. Barrett, M.S. Safronova, G.F. Strouse, W.L. Tew, J. Ye. (2015). Systematic evaluation of an atomic clock at 2e-18 total uncertainty. Nature Communications 6 6896
  • J.D. Thompson, T.Nicholson, Q.-Y. Liang, S.H. Cantu, A.V. Venkatramani, S. Choi, I.A. Fedorov, D. Viscor, T. Pohl, M.D. Lukin, V. Vuletic. (2017). Symmetry-protected collisions between strongly interacting photons. Nature 542 206
  • S.L. Bromley, B. Zhu, M. Bishof, X. Zhang, T. Bothwell, J. Schachenmayer, T.Nicholson, R. Kaiser, S.F. Yelin, M.D. Lukin, A.M. Rey, J. Ye. (2016). Collective atomic scattering and motional effects in a dense coherent medium. Nature Communications 7 11039
  • T.Nicholson, S. Blatt, B.J. Bloom, J.R. Williams, J. Ye, P.S. Julienne. (2015). Optical Feshbach resonances: Field-dressed theory and experimental comparisons. Phys. Rev. A 92 022709
  • B.J. Bloom, T.Nicholson, J.R. Williams, S.L. Campbell, M. Bishof, X. Zhang, W. Zhang, S.L. Bromley, J. Ye. (2012). An optical lattice clock with accuracy and stability at the 1e-18 level. Nature 506 71
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