Publications

S. G. Porsev, C. Cheung, M. S. Safronova, H. Bekker, N.-H. Rehbehn, J. R. Crespo López-Urrutia, and S. M. Brewer, “Pr\(^{10+}\) as a candidate for a high-accuracy optical clock for tests of fundamental physics”, Phys. Rev. A 110, 042823 (2024).
J. B. VanArsdale, M. J. Deutch, M. A. Lombardi, G. K. Nelson, J. A. Sherman, J. Spicer, W. C. Yates, D. C. Yost, and S. M. Brewer, “Dissemination of UTC(NIST) over 20 km of commercial optical fiber with active phase stabilization”, Opt. Lett. 49, 2545 (2024).
D. M. Fairbank, A. L. Banducci, R. W. Gunkelman, J. B. VanArsdale, and S. M. Brewer, “Measurement of the unresolved \(^{9}\rm{Be}^{+}\) \(^{2}P_{3/2}\) hyperfine splittings using quantum-interference-enhanced state-selective repump spectroscopy”, Phys. Rev. A 109, 012809 (2024).
D. M. Fairbank, A. L. Banducci, R. W. Gunkelman, J. B. VanArsdale, M. L. Vildibill, and S. M. Brewer, “Absolute frequency measurements of the \(D\) lines in \(^{9}\rm{Be}^{+}\) using a single trapped ion”, Phys. Rev. Lett. 131, 093001 (2023).
S. O. Allehabi, S. M. Brewer, V. A. Dzuba, V. V. Flambaum, and K. Beloy, “High-accuracy optical clocks based on group-16-like highly charged ions”, Phys. Rev. A 106, 043101 (2022).
C. A. Holliman, M. Fan, A. Contractor, S. M. Brewer, and A. M. Jayich, “Radium Ion Optical Clock”, Phys. Rev. Lett. 128, 033202 (2022).
K. Beloy, M. I. Bodine, T. Bothwell, S. M. Brewer, S. L. Bromley, J.-S. Chen, J.-D. Deschênes, S. A. Diddams, R. J. Fasano, T. M. Fortier, Y. S. Hassan, D. B. Hume, D. Kedar, C. J. Kennedy, I. Khader, A. Koepke, D. R. Leibrandt, H. Leopardi, A. D. Ludlow, W. F. McGrew, W. R. Milner, N. R. Newbury, D. Nicolodi, E. Oelker, T. E. Parker, J. M. Robinson, S. Romisch, S. A. Schäffer, J. A. Sherman, L. C. Sinclair, L. Sonderhouse, W. C. Swann, J. Yao, J. Ye, and X. Zhang, “Frequency ratio measurements at 18-digit accuracy using an optical clock network”, Nature, 591, 564 (2021).
H. Leopardi, K. Beloy, T. Bothwell, S. M. Brewer, S. L. Bromley, J.-S. Chen, S. A. Diddams, R. J. Fasano, Y. S. Hassan, D. B. Hume, D. Kedar, C. J. Kennedy, D. R. Leibrandt, A. D. Ludlow, W. F. McGrew, W. R. Milner, D. Nicolodi, E. Oelker, T. E. Parker, J. M. Robinson, S. Romish, J. A. Sherman, L. Sonderhouse, J. Yao, J. Ye, X. Zhang, and T. M. Fortier, “Measurement of the \(^{27}\)Al\(^{+}\) and \(^{87}\)Sr absolute optical frequencies”, Metrologia 58, 015017 (2021).
E. R. Clements, M. E. Kim, K. Cui, A. M. Hankin, S. M. Brewer, J. Valencia, J.-S. Chen, C.-W. Chou, D. R. Leibrandt, and D. B. Hume, “Lifetime-Limited Interrogation of Two Independent \(^{27}\)Al\(^{+}\) Clocks Using Correlation Spectroscopy”, Phys. Rev. Lett. 125, 243602 (2020).
K. Beloy, V. A. Dzuba, and S. M. Brewer, “Quadruply Ionized Barium as a Candidate for a High-Accuracy Optical Clock”, Phys. Rev. Lett. 125, 173002 (2020).
M. I. Bodine, J.-D. Deschênes, I. H. Khader, W. C. Swann, H. Leopardi, K. Beloy, T. Bothwell, S. M. Brewer, S. L. Bromley, J.-S. Chen, S. A. Diddams, R. J. Fasano, T. M. Fortier, Y. S. Hassan, D. B. Hume, D. Kedar, C. J. Kennedy, A. Koepke, D. R. Leibrandt, A. D. Ludlow, W. F. McGrew, W. R. Milner, D. Nicolodi, E. Oelker, T. E. Parker, J. M. Robinson, S. Romish, S. A. Schäffer, J. A. Sherman, L. Sonderhouse, J. Yao, J. Ye, X. Zhang, N. R. Newbury, and L. C. Sinclair, “Optical atomic clock comparison through turbulent air”, Phys. Rev. Research, 2, 033395 (2020).
G. O’Neil, S. Sanders, P. Szpryt, Dipti, A. Gall, Y. Yang, S. M. Brewer, R. Doriese, J. Fowler, A. Naing, D. Swetz, J. Tan, J. Ullom, A. V. Volotka, E. Takacs, and Y. Ralchenko, “Measurement of the \(^2P_{1/2}~-~^2P_{3/2}\) fine-structure splitting in flourinelike Kr, W, Re, Os, and Ir”, Phys. Rev. A 102, 032803 (2020).
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 \(^{2}P_{1/2}\) state of F-like Ar\(^{9+}\) 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 \(^{2}D_{5/2}\) 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. J. Sansonetti, C. E. Simien, J. D. Gillaspy, J. N. Tan, S. M. Brewer, R. C. Brown, S. Wu, and J. V. 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. N. Draganić, Yu. Ralchenko, J. Reader, J. D. Gillaspy, J. N. Tan, J. M. 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. D. Gillaspy, I. N. Draganić, Yu. Ralchenko, J. Reader, J. N. Tan, J. M. 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).