Publications

  • A. M. Hankin, E. R. Clements, Y. Huang, S. M. Brewer, J.-S. Chen, C. W. Chou, D. B. Hume, and D. R. Leibrandt, “Systematic uncertainty due to background-gas collisions in trapped-ion optical clocks”, Phys. Rev. A 100, 033419 (2019).
  • S. M. Brewer, D. B. Hume, J.-S. Chen, A. M. Hankin, E. R. Clements, C. W. Chou, D. J. Wineland, and D. R. Leibrandt, “27Al+ Quantum-Logic Clock with a Systematic Uncertainty below 10−18”, Phys. Rev. Lett. 123, 033201 (2019).
  • S. M. Brewer, J.-S. Chen, K. Beloy, A. M. Hankin, E. R. Clements, C. W. Chou, W. F. McGrew, X. Zhang, R. J. Fasano, D. Nicolodi, H. Leopardi, T. M. Fortier, S. A. Diddams, A. D, Ludlow, D. J. Wineland, D. R. Leibrandt, and D. B. Hume, “Measurements of 27Al+ and 25Mg+ magnetic constants for improved ion-clock accuracy”, Phys. Rev. A 100, 013409 (2019).
  • J. M. Dreiling, A. S. Naing, J. N. Tan, J. M. Hanson, S. F. Hoogerheide, and S. M. Brewer, “Capture of highly charged ions in a pseudo-hyperbolic Paul trap”, J. Appl. Phys. 126, 024501 (2019).
  • S. M. Brewer, J. M. Dreiling, N. D. Guise, S. F. Hoogerheide, A. Naing, and J. N. Tan, “Lifetime of the metastable 2P1/2 state of F-like Ar9+ isolated in a compact Penning trap”, Phys. Rev. A 98, 032501 (2018).
  • J.-S. Chen, S. M. Brewer, C. W. Chou, D. J. Wineland, D. R. Leibrandt, and D. B. Hume, “Sympathetic Ground State Cooling and Time-Dilation Shifts in an 27Al+ Optical Clock”, Phys. Rev. Lett. 118, 053002 (2017).
  • S. F. Hoogerheide, A. S. Naing, J. M. Dreiling, S. M. Brewer, N. D. Guise, and J. N. Tan, “Experiments with Highly-Ionized Atoms in Unitary Penning Traps”, Atoms 3, 367-391, (2015).
  • N. D. Guise, J. N. Tan, S. M. Brewer, C. F. Fischer, and P. Jonssön, “Measurement of the Kr XVIII 3d 2D5/2 lifetime at low energy in a unitary Penning trap”, Phys. Rev. A 89, 040502(R) (2014).
  • S. M. Brewer, N. D. Guise, and J. N. Tan, “Capture and isolation of highly charged ions in a unitary Penning trap”, Phys. Rev. A 88, 063403 (2013).
  • R. C. Brown, S. Wu, J. V. Porto, C. J. Sansonetti, C. E. Simien, S. M. Brewer, J. N. Tan, and J. D. Gillaspy, “Quantum interference and light polarization effects in unresolvable atomic lines: Application to a precise measurement of the 6,7Li D2 lines”, Phys. Rev. A 87, 032504 (2013).
  • J. N. Tan, S. M. Brewer, and N. D. Guise, “Penning traps with unitary architecture for storage of highly charged ions”, Rev. Sci. Instrum. 83, 023103 (2012).
  • C. Sansonetti, C. Simien, J. Gillaspy, J. Tan, S. M. Brewer, R. Brown, S. Wu, and J. Porto, “Absolute transition frequencies and quantum interference in a frequency comb based measurement of the 6,7Li D lines”, Phys. Rev. Lett. 107, 023001 (2011).
  • I. Draganić, Yu. Ralchenko, J. Reader, J. Gillaspy, J. Tan, J. Pomeroy, S. M. Brewer, D. Osin, “EUV spectral lines of highly-charged Hf, Ta and Au ions observed with an electron beam ion trap”, J. Phys. B 44, 025001 (2011).
  • J. Gillaspy, I. Draganić, Yu. Ralchenko, J. Reader, J. Tan, J. Pomeroy, and S. M. Brewer, “Measurement of the D-line doublet in high-Z highly charged sodiumlike ions”, Phys. Rev. A 80, 010501(R) (2009).