QDesign publications


High-Fidelity Two-Qubit Gates Using a Microelectromechanical-System-Based Beam Steering System for Individual Qubit Addressing.” Y Wang, S Crain, C Fang, B Zhang, S Huang, Q Liang, PH Leung, KR Brown, and J Kim. Physical Review Letters 125, no. 15 (2020)

Submillisecond, nondestructive, time-resolved quantum-state readout of a single, trapped neutral atom.” ME Shea, PM Baker, JA Joseph, J Kim, and DJ Gauthier. Physical Review A 102, no. 5 (2020)

Vacuum characterization of a compact room-temperature trapped ion system.” Y Aikyo, G Vrijsen, TW Noel, A Kato, MK Ivory, and J Kim. Applied Physics Letters 117, no. 23 (2020)

Dipole-phonon quantum logic with alkaline-earth monoxide and monosulfide cations, M. Mills, H. Wu, E.C. Reed, L. Qi, K.R. Brown, C. Schneider, M.C. Heaven, W.C. Campbell, and E.R. Hudson, Phys. Chem. Chem. Phys. 22, 24964 (2020) arXiv:2008.09201

High-fidelity two-qubit gates using a MEMS-based beam steering system for individual qubit addressing, Y. Wang, S. Crain, C. Fang, B. Zhang, S. Huang, Q. Liang, P.H. Leung, K.R. Brown, and J. Kim, Phys. Rev. Lett. 125, 150505 (2020) arXiv:2003.12430

Extending the frontier of quantum computing with qutrits, P. Gokhale, J. M. Baker, C. Duckering, N.C. Brown, K.R. Brown and F.T. Chong, IEEE Micro 40, 64 (2020)

Photon-mediated charge-exchange reactions between 39K atoms and 40Ca+ ions in a hybrid trap,
H. Li, S. Jyothi, M. Li, J. Klos, A. Petrov, K.R. Brown, and S.Kotochigova, Phys. Chem. Chem. Phys. 22, 10970 (2020) arXiv:2003.03430

Real-time calibration with spectator qubits, S. Majumder, L.A. de Castro, and K.R. Brown,  npj Quantum Inf. 6, 19 (2020)

Efficient ground-state cooling of large trapped-ion chains with an EIT tripod scheme,” L. Feng, W. L. Tan, A. De, A. Menon, A. Chu, G. Pagano, and C. Monroe, Phys. Rev. Lett. 125, 053001 (2020).


Efficient isotope-selective pulsed laser ablation loading of 174Yb+ ions in a surface electrode trap.” G Vrijsen, Y Aikyo, RF Spivey, and J Kim. Optics Express 27, 33907 (2019)

High-speed low-crosstalk detection of a 171Yb+ qubit using superconducting nanowire single photon detectors.” S Crain, C Cahall, G Vrijsen, EE Wollman, MD Shaw, VB Verma, SW Nam, and J Kim. Communications Physics 2, no. 1 (2019)

Universal Model for the Turn-On Dynamics of Superconducting Nanowire Single-Photon Detectors.” KL Nicolich, C Cahall, NT Islam, GP Lafyatis, J Kim, AJ Miller, and DJ Gauthier. Physical Review Applied 12, no. 3 (2019)

A hybrid ion-atom trap with integrated high resolution mass spectrometer, S. Jyothi, K.N. Egodapitiya, B. Bondurant, Z. Jia, E. Pretzsch, P. Chiappina, G. Shu, and K.R. Brown, Rev. Sci. Inst. 10, 103201 (2019)

Asymptotic improvements to quantum circuits via qutrits, P. Gokhale, J. M. Baker, C. Duckering, N.C. Brown, K.R. Brown and F.T. Chong, in Proceedings of the 46th International Symposium on Computer Architecture (ISCA’19), pp. 554-566 (2019)


Machine Learning Assisted Readout of Trapped Ion Qubits,” A. Seif, K. A. Landsman, N. M. Linke, C. Figgatt, C. Monroe, and M. Hafezi, J. Phys. B: At. Mol. Opt. Phys. 51 174006 (2018)

Cryogenic Trapped-Ion System for Large Scale Quantum Simulation,” G. Pagano, P.W. Hess, H. B. Kaplan, W. L. Tan, P. Richerme, P. Becker, A. Kyprianidis, J. Zhang, E. Birckelbaw, M. R. Hernandez, Y. Wu, C. Monroe, Quantum Sci. Tech. 4, 014004 (2018)

Robust two-qubit gates in a linear ion crystal using a frequency-modulated driving force,” P.-H. Leung, K. A. Landsman, C. Figgatt, N. M. Linke, C. Monroe, and K. R. Brown, Phys. Rev. Lett. 120, 020501 (2018)

Scalable cryogenic readout circuit for a superconducting nanowire single-photon detector system.” C Cahall, DJ Gauthier, and J Kim. Review of Scientific Instruments 89, no. 6 (2018)

Spectroscopy of molecular ions in Coulomb crystals, A.T. Calvin and K.R. Brown, J. Phys. Chem. Lett. 9, 5797-5804 (2018)

Rovibronic spectroscopy of sympathetically cooled 40CaH+, A.T. Calvin, S. Janardan, J. Condoluci, R. Rugango, E. Pretzsch, G. Shu, and K.R. Brown, J. Phys. Chem A 122, 3177 (2018)


Demonstration of two-atom entanglement with ultrafast optical pulses,” J. D. Wong-Campos, S. A. Moses, K. G. Johnson, and C. Monroe, Phys. Rev. Lett. 119, 230501 (2017)

Ultrafast Creation of Large Schrödinger Cat States of an Atom,” K. G. Johnson, J. D. Wong-Campos, B. Neyenhuis, J. Mizrahi, and C. Monroe, Nature Communications  8, 697 (2017)

Design and characterization of an integrated surface ion trap and micromirror optical cavity.” A van Rynbach, G Schwartz, RF Spivey, J Joseph, G Vrijsen, and J Kim. Applied Optics 56, 6511 (2017)

Multi-photon detection using a conventional superconducting nanowire single-photon detector.” C Cahall, KL Nicolich, NT Islam, GP Lafyatis, AJ Miller, DJ Gauthier, and J Kim. Optica 4, 1534 (2017)

Nature Photonics cover2016

Engineering Large Stark Shifts for Control of Individual Clock-State Qubits,” A. C. Lee, J. Smith, P. Richerme, B. Neyenhuis, P. W. Hess, J. Zhang, and C. Monroe, Phys. Rev. A 94, 042308 (2016)

High resolution adaptive imaging of a single atom,” J. D. Wong-Campos, K. G. Johnson, B. Neyenhuis, J. Mizrahi, and C. Monroe, Nature Photonics 10, 606 (2016)

Active Stabilization of Ion Trap Radiofrequency Potentials,” K. G. Johnson, J. D. Wong-Campos, A. Restelli, K. A. Landsman, B. Neyenhuis, J. Mizrahi, and C. Monroe, Rev. Sci. Instrum. 87, 053110 (2016)

Trapping and sympathetic cooling of Boron ions, R. Rugango, M. Sinhal, G. Shu, and K.R. Brown, arXiv:1609.09521 (2016)

Vibronic spectroscopy of sympathetically cooled CaH+, R. Rugango, A.T. Calvin, S. Janardan, G. Shu, and K. R. Brown, ChemPhysChem 17, 3764 (2016)

An integrated mirror and surface ion trap with a tunable trap location.” A van Rynbach, P Maunz, and J Kim. Applied Physics Letters 109, 221108 (2016)