Kenneth R Brown

Research Themes

Quantum Computing

Research Interests

Quantum error correction, quantum control, quantum computer architecture, ion trap quantum computing, and the spectroscopy of sympathetically cooled molecular ions

Bio

Prof. Brown's research interest is the control of quantum systems for both understanding the natural world and developing new technologies. His current research areas are the development of robust quantum computers and the study of molecular properties at cold and ultracold temperatures.

Education

• B.S. University of Puget Sound, 1998
• Ph.D. University of California, Berkeley, 2003

Positions

• Michael J. Fitzpatrick Distinguished Professor of Engineering
• Professor in the Department of Electrical and Computer Engineering
• Associate Director of the Duke Quantum Center
• Professor of Physics
• Member of the Duke Quantum Center

Awards, Honors, and Distinctions

• Stansell Family Distinguished Research Award. Pratt School of Engineering. 2020
• Fellow. American Physical Society. 2018
• Experienced Research Fellow. Alexander von Humboldt Foundation. 2015
• Kavli Fellow. Kavli Foundation and National Academy of Science. 2013

Courses Taught

• PHYSICS 995: Graduate Training Internship
• PHYSICS 628: Quantum Error Correction
• PHYSICS 495: Thesis Independent Study
• PHYSICS 493: Research Independent Study
• HOUSECS 59: House Course
• EGR 393: Research Projects in Engineering
• ECE 899: Special Readings in Electrical Engineering
• ECE 891: Internship
• ECE 621: Quantum Error Correction
• ECE 520: Graduate Introduction to Quantum Engineering
• ECE 494: Projects in Electrical and Computer Engineering
• ECE 493: Projects in Electrical and Computer Engineering
• ECE 420: Introduction to Quantum Engineering
• ECE 391: Projects in Electrical and Computer Engineering

Publications

• Lim S, Baek S, Whitlow J, Onofrio MD, Chen T, Phiri S, et al. Design and characterization of individual addressing optics based on multi-channel acousto-optic modulator for ¹⁷¹Yb⁺ qubits (Accepted). Optics and Laser Technology. 2025 Jan 1;180.
• Campos JA, Brown KR. Clifford-Deformed Compass Codes. 2024.
• Patel S, Brown KR. Precise Determination of Excited State Rotational Constants and Black-Body Thermometry in Coulomb Crystals of Ca$^+$ and CaH$^+$. 2024.
• Qi L, Reed EC, Yu B, Brown KR. Experimental evidence for dipole-phonon quantum logic in a trapped calcium monoxide and calcium ion chain. 2024.
• Huang S, Brown KR, Cetina M. Comparing Shor and Steane error correction using the Bacon-Shor code. Science advances. 2024 Nov;10(45):eadp2008.
• Pato B, Tansuwannont T, Brown KR. Concatenated Steane code with single-flag syndrome checks. Physical Review A. 2024 Sep 1;110(3).
• Reed EC, Qi L, Brown KR. Comparison of continuous and pulsed sideband cooling on an electric quadrupole transition. Physical Review A. 2024 Jul 1;110(1).
• Sun K, Kang M, Nuomin H, Schwartz G, Beratan DN, Brown KR, et al. Quantum Simulation of Spin-Boson Models with Structured Bath. 2024.
• Pato B, Jr JWS, Brown KR. Logical coherence in 2D compass codes. 2024.
• Lin Y, Huang S, Brown KR. Single-shot error correction on toric codes with high-weight stabilizers. Physical Review A. 2024 May 1;109(5).
• Kang M, Nuomin H, Chowdhury SN, Yuly JL, Sun K, Whitlow J, et al. Seeking a quantum advantage with trapped-ion quantum simulations of condensed-phase chemical dynamics. Nature reviews Chemistry. 2024 May;8(5):340–58.
• Pato B, Tansuwannont T, Huang S, Brown KR. Optimization Tools for Distance-Preserving Flag Fault-Tolerant Error Correction. PRX Quantum. 2024 Apr 1;5(2).
• Brown K. Quantum-Hardware Focused Application Performance Benchmarks (Final Technical Report). Office of Scientific and Technical Information (OSTI); 2024 Mar.
• Guttentag E, Nemec A, Brown KR. Robust Syndrome Extraction via BCH Encoding. In: IEEE International Symposium on Information Theory - Proceedings. 2024. p. 2281–6.
• Sabo E, Aloshious AB, Brown KR. Trellis Decoding for Qudit Stabilizer Codes and Its Application to Qubit Topological Codes. IEEE Transactions on Quantum Engineering. 2024 Jan 1;5.
• Guttentag E, Nemec A, Brown KR. Robust Syndrome Extraction via BCH Encoding. 2023.
• Whitlow J, Jia Z, Wang Y, Fang C, Kim J, Brown KR. Quantum simulation of conical intersections using trapped ions. Nature chemistry. 2023 Nov;15(11):1509–14.
• Lin Y, Huang S, Brown KR. Single-shot error correction on toric codes with high-weight stabilizers. 2023.
• Dalvi AS, Whitlow J, D’Onofrio M, Riesebos L, Chen T, Phiri S, et al. One-Time Compilation of Device-Level Instructions for Quantum Subroutines. 2023.
• Sun K, Fang C, Kang M, Zhang Z, Zhang P, Beratan DN, et al. Quantum Simulation of Polarized Light-Induced Electron Transfer with a Trapped-Ion Qutrit System. The journal of physical chemistry letters. 2023 Jul;14(26):6071–7.
• Qi L, Reed EC, Brown KR. Adiabatically controlled motional states of a Formula Presented and Formula Presented trapped-ion chain cooled to the ground state. Physical Review A. 2023 Jul 1;108(1).
• Pato B, Tansuwannont T, Huang S, Brown KR. Optimization tools for distance-preserving flag fault-tolerant error correction. 2023.
• Kang M, Nuomin H, Chowdhury SN, Yuly JL, Sun K, Whitlow J, et al. Seeking a quantum advantage with trapped-ion quantum simulations of condensed-phase chemical dynamics. 2023.
• Sun K, Fang C, Kang M, Zhang Z, Zhang P, Beratan DN, et al. Quantum Simulation of Polarized Light-induced Electron Transfer with A Trapped-ion Qutrit System. 2023.
• Kang M, Campbell WC, Brown KR. Quantum Error Correction with Metastable States of Trapped Ions Using Erasure Conversion. PRX Quantum. 2023 Apr 1;4(2).
• Jia Z, Huang S, Kang M, Sun K, Spivey RF, Kim J, et al. Angle-robust two-qubit gates in a linear ion crystal. Physical Review A. 2023 Mar 1;107(3).
• Kang M, Wang Y, Fang C, Zhang B, Khosravani O, Kim J, et al. Designing Filter Functions of Frequency-Modulated Pulses for High-Fidelity Two-Qubit Gates in Ion Chains. Physical Review Applied. 2023 Jan 1;19(1).
• Van Horn A, Gabaldon H, Kim J, Brown KR. Control Infrastructure for Near-Term Long-Chain QCCD. In: Proceedings - 2023 IEEE International Conference on Quantum Computing and Engineering, QCE 2023. 2023. p. 357–8.
• Badrike K, Dalvi AS, Mazurek F, D’Onofrio M, Whitlow J, Chen T, et al. QisDAX: An Open Source Bridge from Qiskit to Trapped-Ion Quantum Devices. In: Proceedings - 2023 IEEE International Conference on Quantum Computing and Engineering, QCE 2023. 2023. p. 825–36.
• Tansuwannont T, Pato B, Brown KR. Adaptive syndrome measurements for Shor-style error correction. Quantum. 2023 Jan 1;7.
• Ravi GS, Gokhale P, Ding Y, Kirby W, Smith K, Baker JM, et al. CAFQA: A Classical Simulation Bootstrap for Variational Quantum Algorithms. In: International Conference on Architectural Support for Programming Languages and Operating Systems - ASPLOS. 2022. p. 15–29.
• Qi L, Reed EC, Brown KR. Adiabatically controlled motional states of a ground-state cooled CaO$^{+}$ and Ca$^{+}$ trapped ion chain. 2022.
• Fang C, Wang Y, Huang S, Brown KR, Kim J. Crosstalk Suppression in Individually Addressed Two-Qubit Gates in a Trapped-Ion Quantum Computer. Physical review letters. 2022 Dec;129(24):240504.
• Whitlow J, Jia Z, Wang Y, Fang C, Kim J, Brown KR. Simulating conical intersections with trapped ions. 2022.
• Jia Z, Huang S, Kang M, Sun K, Spivey RF, Kim J, et al. Angle-robust Two-Qubit Gates in a Linear Ion Crystal. 2022.
• Jia Z, Wang Y, Zhang B, Whitlow J, Fang C, Kim J, et al. Determination of Multimode Motional Quantum States in a Trapped Ion System. Physical review letters. 2022 Sep;129(10):103602.
• Tansuwannont T, Pato B, Brown KR. Adaptive syndrome measurements for Shor-style error correction. 2022.
• Fang C, Wang Y, Huang S, Brown KR, Kim J. Crosstalk Suppression in Individually Addressed Two-Qubit Gates in a Trapped-Ion Quantum Computer. 2022.
• Jia Z, Wang Y, Zhang B, Whitlow J, Fang C, Kim J, et al. Determination of Multi-mode Motional Quantum States in a Trapped Ion System. 2022.
• Asfaw A, Blais A, Brown KR, Candelaria J, Cantwell C, Carr LD, et al. Building a Quantum Engineering Undergraduate Program. IEEE Transactions on Education. 2022 May 1;65(2):220–42.
• Zhang B, Majumder S, Leung PH, Crain S, Wang Y, Fang C, et al. Hidden Inverses: Coherent Error Cancellation at the Circuit Level. Physical Review Applied. 2022 Mar 1;17(3).
• Murali P, Debroy DM, Brown KR, Martonosi M. Toward Systematic Architectural Design of Near-Term Trapped Ion Quantum Computers. Communications of the ACM. 2022 Feb 23;65(3):101–9.
• Wellers C, Schenkel MR, Giri GS, Brown KR, Schiller S. Controlled preparation and vibrational excitation of single ultracold molecular hydrogen ions. Molecular Physics. 2022 Jan 1;120(19–20).
• Riesebos L, Bondurant B, Whitlow J, Kim J, Kuzyk M, Chen T, et al. Modular software for real-time quantum control systems. In: Proceedings - 2022 IEEE International Conference on Quantum Computing and Engineering, QCE 2022. 2022. p. 545–55.
• Riesebos L, Brown KR. Functional simulation of real-time quantum control software. In: Proceedings - 2022 IEEE International Conference on Quantum Computing and Engineering, QCE 2022. 2022. p. 535–44.
• Dalvi AS, Mazurek F, Riesebos L, Whitlow J, Majumder S, Brown KR. Modular Architecture for Classical Simulation of Quantum Circuits. In: Proceedings - 2022 IEEE International Conference on Quantum Computing and Engineering, QCE 2022. 2022. p. 810–2.
• Chen T, Kim J, Kuzyk M, Whitlow J, Phiri S, Bondurant B, et al. Stable Turnkey Laser System for a Yb/Ba Trapped-Ion Quantum Computer. IEEE Transactions on Quantum Engineering. 2022 Jan 1;3.
• Debroy DM, Egan L, Noel C, Risinger A, Zhu D, Biswas D, et al. Optimizing Stabilizer Parities for Improved Logical Qubit Memories. Physical review letters. 2021 Dec;127(24):240501.
• Egan L, Debroy DM, Noel C, Risinger A, Zhu D, Biswas D, et al. Fault-tolerant control of an error-corrected qubit. Nature. 2021 Oct;598(7880):281–6.
• Brown KR, Chiaverini J, Sage JM, Häffner H. Materials challenges for trapped-ion quantum computers. Nature Reviews Materials. 2021 Oct 1;6(10):892–905.
• Riesebos L, Bondurant B, Brown KR. Universal Graph-Based Scheduling for Quantum Systems. IEEE Micro. 2021 Sep 1;41(5):57–65.
• Huang S, Brown KR. Between Shor and Steane: A Unifying Construction for Measuring Error Syndromes. Physical review letters. 2021 Aug;127(9):090505.
• Huang S, Brown KR. Constructions for measuring error syndromes in Calderbank-Shor-Steane codes between Shor and Steane methods. Physical Review A. 2021 Aug 1;104(2).
• Kang M, Liang Q, Zhang B, Huang S, Wang Y, Fang C, et al. Batch Optimization of Frequency-Modulated Pulses for Robust Two-Qubit Gates in Ion Chains. Physical Review Applied. 2021 Aug 1;16(2).
• Nguyen NH, Li M, Green AM, Huerta Alderete C, Zhu Y, Zhu D, et al. Demonstration of Shor Encoding on a Trapped-Ion Quantum Computer. Physical Review Applied. 2021 Aug 1;16(2).
• Aiello CD, Awschalom DD, Bernien H, Brower T, Brown KR, Brun TA, et al. Achieving a quantum smart workforce. Quantum Science and Technology. 2021 Jul 1;6(3).
• Sabo E, Aloshious AB, Brown KR. Trellis Decoding For Qudit Stabilizer Codes And Its Application To Qubit Topological Codes. 2021.
• Debroy DM, Egan L, Noel C, Risinger A, Zhu D, Biswas D, et al. Optimizing Stabilizer Parities for Improved Logical Qubit Memories. 2021.
• Zhang B, Majumder S, Leung PH, Crain S, Wang Y, Fang C, et al. Hidden Inverses: Coherent Error Cancellation at the Circuit Level. Phys Rev Applied. 2021 Apr 2;17:034074.
• Wu XC, Debroy DM, Ding Y, Baker JM, Alexeev Y, Brown KR, et al. TILT: Achieving Higher Fidelity on a Trapped-Ion Linear-Tape Quantum Computing Architecture. In: Proceedings - International Symposium on High-Performance Computer Architecture. 2021. p. 153–66.
• Alexeev Y, Bacon D, Brown KR, Calderbank R, Carr LD, Chong FT, et al. Quantum Computer Systems for Scientific Discovery. PRX Quantum. 2021 Jan 1;2(1).
• Altman E, Brown KR, Carleo G, Carr LD, Demler E, Chin C, et al. Quantum Simulators: Architectures and Opportunities. PRX Quantum. 2021 Jan 1;2(1).
• Gokhale P, Koretsky S, Huang S, Majumder S, Drucker A, Brown KR, et al. Quantum Fan-out: Circuit Optimizations and Technology Modeling. In: Proceedings - 2021 IEEE International Conference on Quantum Computing and Engineering, QCE 2021. 2021. p. 276–90.
• Baker JM, Duckering C, Gokhale P, Brown NC, Brown KR, Chong FT. Improved Quantum Circuits via Intermediate Qutrits. ACM Transactions on Quantum Computing. 2020 Dec 1;1(1).
• Nam Y, Chen JS, Pisenti NC, Wright K, Delaney C, Maslov D, et al. Ground-state energy estimation of the water molecule on a trapped-ion quantum computer. npj Quantum Information. 2020 Dec 1;6(1).
• Majumder S, Andreta de Castro L, Brown KR. Real-time calibration with spectator qubits. npj Quantum Information. 2020 Dec 1;6(1).
• Debroy DM, Brown KR. Extended flag gadgets for low-overhead circuit verification. Physical Review A. 2020 Nov 10;102(5).
• Mills M, Wu H, Reed EC, Qi L, Brown KR, Schneider C, et al. Dipole-phonon quantum logic with alkaline-earth monoxide and monosulfide cations. Physical chemistry chemical physics : PCCP. 2020 Nov;22(43):24964–73.
• Shi Y, Gokhale P, Murali P, Baker JM, Duckering C, Ding Y, et al. Resource-Efficient Quantum Computing by Breaking Abstractions. 2020.
• Wu X-C, Debroy DM, Ding Y, Baker JM, Alexeev Y, Brown KR, et al. TILT: Achieving Higher Fidelity on a Trapped-Ion Linear-Tape Quantum Computing Architecture. 2020.
• Brown NC, Cross A, Brown KR. Critical faults of leakage errors on the surface code. Proceedings - IEEE International Conference on Quantum Computing and Engineering, QCE 2020. 2020 Oct 1;286–94.
• Wang Y, Crain S, Fang C, Zhang B, Huang S, Liang Q, et al. High-Fidelity Two-Qubit Gates Using a Microelectromechanical-System-Based Beam Steering System for Individual Qubit Addressing. Physical review letters. 2020 Oct;125(15):150505.
• Debroy DM, Brown KR. Extended flag gadgets for low-overhead circuit verification. 2020.
• Mills M, Wu H, Reed EC, Qi L, Brown KR, Schneider C, et al. Dipole-phonon quantum logic with alkaline-earth monoxide and monosulfide cations. 2020.
• Shi Y, Gokhale P, Murali P, Baker JM, Duckering C, Ding Y, et al. Resource-Efficient Quantum Computing by Breaking Abstractions. Proceedings of the IEEE. 2020 Aug 1;108(8):1353–70.
• Newman M, de Castro LA, Brown KR. Generating fault-tolerant cluster states from crystal structures. Quantum. 2020 Jul 13;4.
• Huang S, Newman M, Brown KR. Fault-tolerant weighted union-find decoding on the toric code. Physical Review A. 2020 Jul 1;102(1).
• Debroy DM, Li M, Huang S, Brown KR. Logical performance of 9 qubit compass codes in ion traps with crosstalk errors. Quantum Science and Technology. 2020 Jul 1;5(3).
• Murali P, Debroy DM, Brown KR, Martonosi M. Architecting Noisy Intermediate-Scale Trapped Ion Quantum Computers. In: Proceedings - International Symposium on Computer Architecture. 2020. p. 529–42.
• Gokhale P, Baker JM, Duckering C, Chong FT, Brown NC, Brown KR. Extending the Frontier of Quantum Computers with Qutrits. IEEE Micro. 2020 May 1;40(3):64–72.
• Li H, Jyothi S, Li M, Kłos J, Petrov A, Brown KR, et al. Photon-mediated charge exchange reactions between ³⁹K atoms and ⁴⁰Ca⁺ ions in a hybrid trap. Physical chemistry chemical physics : PCCP. 2020 May;22(19):10870–81.
• Murali P, Debroy DM, Brown KR, Martonosi M. Architecting Noisy Intermediate-Scale Trapped Ion Quantum Computers. 2020.
• Huang S, Brown KR. Fault-tolerant compass codes. Physical Review A. 2020 Apr 1;101(4).
• Kim J, Chen T, Whitlow J, Phiri S, Bondurant B, Kuzyk M, et al. Hardware design of a trapped-ion quantum computer for software-tailored architecture for quantum co-design (STAQ) project. In: Optics InfoBase Conference Papers. 2020.
• Wang Y, Crain S, Fang C, Zhang B, Leung PH, Huang S, et al. High-fidelity two-qubit gates using a MEMS-based beam steering system for individual qubit addressing. In: Optics InfoBase Conference Papers. 2020.
• Jyothi S, Egodapitiya KN, Bondurant B, Jia Z, Pretzsch E, Chiappina P, et al. A hybrid ion-atom trap with integrated high resolution mass spectrometer. Review of Scientific Instruments. 2019 Oct 1;90(10).
• Brown NC, Brown KR. Leakage mitigation for quantum error correction using a mixed qubit scheme. Physical Review A. 2019 Sep 18;100(3).
• Landsman KA, Wu Y, Leung PH, Zhu D, Linke NM, Brown KR, et al. Two-qubit entangling gates within arbitrarily long chains of trapped ions. Physical Review A. 2019 Aug 26;100(2).
• Brown NC, Newman M, Brown KR. Handling leakage with subsystem codes. New Journal of Physics. 2019 Jul 30;21(7).
• Gokhale P, Baker JM, Duckering C, Brown NC, Brown KR, Chong FT. Asymptotic improvements to quantum circuits via qutrits. In: Proceedings - International Symposium on Computer Architecture. 2019. p. 554–66.
• Li M, Miller D, Newman M, Wu Y, Brown KR. 2D Compass Codes. Physical Review X. 2019 May 29;9(2).
• Murphy DC, Brown KR. Controlling error orientation to improve quantum algorithm success rates. Physical Review A. 2019 Mar 14;99(3).
• Brown KR. Quantum technologies and the National Quantum Initiative. Quantum Engineering. 2019 Mar;1(1):e7–e7.
• Debroy DM, Li M, Newman M, Brown KR. Stabilizer Slicing: Coherent Error Cancellations in Low-Density Parity-Check Stabilizer Codes. Physical review letters. 2018 Dec;121(25):250502.
• Beale SJ, Wallman JJ, Gutiérrez M, Brown KR, Laflamme R. Quantum Error Correction Decoheres Noise. Physical review letters. 2018 Nov;121(19):190501.
• Calvin AT, Brown KR. Spectroscopy of Molecular Ions in Coulomb Crystals. The journal of physical chemistry letters. 2018 Oct;9(19):5797–804.
• Leung PH, Brown KR. Entangling an arbitrary pair of qubits in a long ion crystal. Physical Review A. 2018 Sep 18;98(3).
• Brown NC, Brown KR. Comparing Zeeman qubits to hyperfine qubits in the context of the surface code: 174Yb+ and 171Yb+. Phys Rev A. 2018 May 2;97:052301–052301.
• Li M, Miller D, Brown KR. Direct measurement of Bacon-Shor code stabilizers. 2018 Apr 3;
• Trout CJ, Li M, Gutiérrez M, Wu Y, Wang ST, Duan L, et al. Simulating the performance of a distance-3 surface code in a linear ion trap. New Journal of Physics. 2018 Apr 1;20(4).
• Calvin AT, Janardan S, Condoluci J, Rugango R, Pretzsch E, Shu G, et al. Rovibronic Spectroscopy of Sympathetically Cooled 40CaH+. The Journal of Physical Chemistry A. 2018 Mar 9;122(12):3177–81.
• Leung PH, Landsman KA, Figgatt C, Linke NM, Monroe C, Brown KR. Robust 2-Qubit Gates in a Linear Ion Crystal Using a Frequency-Modulated Driving Force. Physical review letters. 2018 Jan;120(2):020501.
• Condoluci J, Janardan S, Calvin AT, Rugango R, Shu G, Sherrill CD, et al. Reassigning the CaH⁺ 1¹Σ → 2¹Σ vibronic transition with CaD. The Journal of chemical physics. 2017 Dec;147(21):214309.
• Javadi-Abhari A, Gokhale P, Holmes A, Franklin D, Brown KR, Martonosi M, et al. Optimized surface code communication in superconducting quantum computers. In: Proceedings of the Annual International Symposium on Microarchitecture, MICRO. 2017. p. 692–705.
• Linke NM, Gutierrez M, Landsman KA, Figgatt C, Debnath S, Brown KR, et al. Fault-tolerant quantum error detection. Science advances. 2017 Oct;3(10):e1701074.
• Li M, Gutiérrez M, David SE, Hernandez A, Brown KR. Fault tolerance with bare ancillary qubits for a [[7,1,3]] code. Physical Review A. 2017 Sep 28;96(3).
• Linke NM, Gutierrez M, Landsman KA, Figgatt C, Debnath S, Brown KR, et al. Fault-tolerant quantum error detection. 2016.
• Rugango R, Calvin AT, Janardan S, Shu G, Brown KR. Vibronic Spectroscopy of Sympathetically Cooled CaH. Chemphyschem : a European journal of chemical physics and physical chemistry. 2016 Nov;17(22):3764–8.
• Gutiérrez M, Smith C, Lulushi L, Janardan S, Brown KR. Errors and pseudothresholds for incoherent and coherent noise. Physical Review A. 2016 Oct 24;94(4).
• Fallek SD, Herold CD, McMahon BJ, Maller KM, Brown KR, Amini JM. Transport implementation of the Bernstein-Vazirani algorithm with ion qubits. New Journal of Physics. 2016 Aug 1;18(8).
• Janardan S, Tomita Y, Gutiérrez M, Brown KR. Analytical error analysis of Clifford gates by the fault-path tracer method. Quantum Information Processing. 2016 Aug 1;15(8):3065–79.
• Rugango R, Sinhal M, Shu G, Brown KR. Trapping and Sympathetic Cooling of Boron Ions. 2016;
• Brown KR, Kim J, Monroe C. Co-designing a scalable quantum computer with trapped atomic ions. npj Quantum Information. 2016 Jan 1;2(1).
• Mount E, Kabytayev C, Crain S, Harper R, Baek SY, Vrijsen G, et al. Error compensation of single-qubit gates in a surface-electrode ion trap using composite pulses. 2015 Dec 16;
• Delaubenfels TE, Burkhardt KA, Vittorini G, Merrill JT, Brown KR, Amini JM. Modulating carrier and sideband coupling strengths in a standing-wave gate beam. Physical Review A - Atomic, Molecular, and Optical Physics. 2015 Dec 10;92(6).
• Trout CJ, Brown KR. Magic state distillation and gate compilation in quantum algorithms for quantum chemistry. International Journal of Quantum Chemistry. 2015 Oct 1;115(19):1296–304.
• Khanyile NB, Shu G, Brown KR. Observation of vibrational overtones by single-molecule resonant photodissociation. Nature communications. 2015 Jul;6:7825.
• Heckey J, Patil S, JavadiAbhari A, Holmes A, Kudrow D, Brown KR, et al. Compiler management of communication and parallelism for quantum computation. In: International Conference on Architectural Support for Programming Languages and Operating Systems - ASPLOS. 2015. p. 445–56.
• Rugango R, Goeders JE, Dixon TH, Gray JM, Khanyile NB, Shu G, et al. Sympathetic cooling of molecular ion motion to the ground state. New Journal of Physics. 2015 Mar 12;17.
• Gutiérrez M, Brown KR. Comparison of a quantum error-correction threshold for exact and approximate errors. Physical Review A - Atomic, Molecular, and Optical Physics. 2015 Feb 27;91(2).
• Brown KR, Viteri CR, Clark CR, Goeders JE, Khanyile NB, Vittorini GD. Laser-cooled atomic ions as probes of molecular ions. In: AIP Conference Proceedings. 2015. p. 392–5.
• Merrill JT, Doret SC, Vittorini G, Addison JP, Brown KR. Transformed composite sequences for improved qubit addressing. Physical Review A - Atomic, Molecular, and Optical Physics. 2014 Oct 2;90(4).
• Kabytayev C, Green TJ, Khodjasteh K, Biercuk MJ, Viola L, Brown KR. Robustness of composite pulses to time-dependent control noise. Physical Review A - Atomic, Molecular, and Optical Physics. 2014 Jul 14;90(1).
• Shu G, Vittorini G, Buikema A, Nichols CS, Volin C, Stick D, et al. Heating rates and ion-motion control in a y -junction surface-electrode trap. Physical Review A - Atomic, Molecular, and Optical Physics. 2014 Jun 6;89(6).
• Monroe C, Raussendorf R, Ruthven A, Brown KR, Maunz P, Duan LM, et al. Large-scale modular quantum-computer architecture with atomic memory and photonic interconnects. Physical Review A - Atomic, Molecular, and Optical Physics. 2014 Feb 13;89(2).
• Merrill JT, Brown KR. Progress in compensating pulse sequences for quantum computation. In 2014. p. 241–94.
• Brown KR. Physics Probing the electron. Science (New York, NY). 2014 Jan;343(6168):255–6.
• Tomita Y, Gutiérrez M, Kabytayev C, Brown KR, Hutsel MR, Morris AP, et al. Comparison of ancilla preparation and measurement procedures for the Steane [[7,1,3]] code on a model ion-trap quantum computer. Physical Review A - Atomic, Molecular, and Optical Physics. 2013 Oct 30;88(4).
• Goeders JE, Clark CR, Vittorini G, Wright K, Viteri CR, Brown KR. Identifying single molecular ions by resolved sideband measurements. The journal of physical chemistry A. 2013 Oct;117(39):9725–31.
• Kudrow D, Bier K, Deng Z, Franklin D, Tomita Y, Brown KR, et al. Quantum rotations: A case study in static and dynamic machine-code generation for quantum computers. In: Proceedings - International Symposium on Computer Architecture. 2013. p. 166–76.
• Shappert CM, Merrill JT, Brown KR, Amini JM, Volin C, Doret SC, et al. Spatially uniform single-qubit gate operations with near-field microwaves and composite pulse compensation. New Journal of Physics. 2013 Aug 1;15.
• Vittorini G, Wright K, Brown KR, Harter AW, Doret SC. Modular cryostat for ion trapping with surface-electrode ion traps. The Review of scientific instruments. 2013 Apr;84(4):043112.
• Gutiérrez M, Svec L, Vargo A, Brown KR. Approximation of realistic errors by Clifford channels and Pauli measurements. Physical Review A - Atomic, Molecular, and Optical Physics. 2013 Mar 22;87(3).
• Warring U, Ospelkaus C, Colombe Y, Brown KR, Amini JM, Carsjens M, et al. Techniques for microwave near-field quantum control of trapped ions. Physical Review A. 2013 Jan 31;87(1).
• Sarvepalli P, Brown KR. Topological subsystem codes from graphs and hypergraphs. Physical Review A - Atomic, Molecular, and Optical Physics. 2012 Oct 31;86(4).
• Wilson AC, Ospelkaus C, VanDevender AP, Mlynek JA, Brown KR, Leibfried D, et al. A 750-mW, continuous-wave, solid-state laser source at 313 nm for cooling and manipulating trapped 9Be+ ions. Applied Physics B. 2011 Dec;105(4):741–8.
• Merrill JT, Volin C, Landgren D, Amini JM, Wright K, Doret SC, et al. Demonstration of integrated microscale optics in surface-electrode ion traps. New Journal of Physics. 2011 Oct 1;13.
• Brown KR, Wilson AC, Colombe Y, Ospelkaus C, Meier AM, Knill E, et al. Single-qubit-gate error below10−4in a trapped ion. Physical Review A. 2011 Sep 14;84(3).
• Ospelkaus C, Warring U, Colombe Y, Brown KR, Amini JM, Leibfried D, et al. Microwave quantum logic gates for trapped ions. Nature. 2011 Aug;476(7359):181–4.
• Nguyen JHV, Viteri CR, Hohenstein EG, Sherrill CD, Brown KR, Odom B. Challenges of laser-cooling molecular ions. New Journal of Physics. 2011 Jun 1;13.
• Brown KR, Ospelkaus C, Colombe Y, Wilson AC, Leibfried D, Wineland DJ. Coupled quantized mechanical oscillators. Nature. 2011 Mar;471(7337):196–9.
• Clark CR, Goeders JE, Vittorini GD, Khanyile NB, Briggs NA, Viteri CR, et al. Sympathetic heating spectroscopy of atomic and molecular ions. In: ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY. 2011.
• Brown KR. Sympathetic heating spectroscopy: Probing molecular ions with laser-cooled atomic ions. In: Optics InfoBase Conference Papers. 2010.
• Tomita Y, Viteri CR, Brown KR. Analytical solution of thermal magnetization on memory stabilizer structures. Physical Review A - Atomic, Molecular, and Optical Physics. 2010 Oct 6;82(4).
• Crosson IJ, Bacon D, Brown KR. Making classical ground-state spin computing fault-tolerant. Physical review E, Statistical, nonlinear, and soft matter physics. 2010 Sep;82(3 Pt 1):031106.
• Clark CR, Goeders JE, Dodia YK, Viteri CR, Brown KR. Detection of single-ion spectra by Coulomb-crystal heating. Physical Review A - Atomic, Molecular, and Optical Physics. 2010 Apr 29;81(4).
• Brown KR. Quantum computing: chemistry from photons. Nature chemistry. 2010 Feb;2(2):76–7.
• Tomita Y, Merrill JT, Brown KR. Multi-qubit compensation sequences. New Journal of Physics. 2010 Jan 19;12.
• Brown KR, Viteri CR, Goeders JE, Clark CR. Laser-cooled atomic ions as probes of molecular ions for applications in astrochemistry. In: ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY. 2010.
• Brown KR. Sympathetic heating spectroscopy: Probing molecular ions with laser-cooled atomic ions. In: Optics InfoBase Conference Papers. 2010.
• Tanaka U, Naka R, Iwata F, Ujimaru T, Brown KR, Chuang IL, et al. Design and characterization of a planar trap. Journal of Physics B: Atomic, Molecular and Optical Physics. 2009 Nov 9;42(15).
• Viteri CR, Tomita Y, Brown KR. Monte Carlo analysis of critical phenomenon of the Ising model on memory stabilizer structures. Physical Review A - Atomic, Molecular, and Optical Physics. 2009 Oct 19;80(4).
• Clark RJ, Lin T, Brown KR, Chuang IL. A two-dimensional lattice ion trap for quantum simulation. Journal of Applied Physics. 2009 Jul 9;105(1).
• Clark CR, Metodi TS, Gasster SD, Brown KR. Resource requirements for fault-tolerant quantum simulation: The ground state of the transverse Ising model. Physical Review A - Atomic, Molecular, and Optical Physics. 2009 Jun 15;79(6).
• Labaziewicz J, Ge Y, Antohi P, Leibrandt D, Brown KR, Chuang IL. Suppression of heating rates in cryogenic surface-electrode ion traps. Physical review letters. 2008 Jan;100(1):013001.
• Leibrandt DR, Clark RJ, Labaziewicz J, Antohi P, Bakr W, Brown KR, et al. Laser ablation loading of a surface-electrode ion trap. Physical Review A - Atomic, Molecular, and Optical Physics. 2007 Nov 8;76(5).
• Brown KR, Britton J, Epstein RJ, Chiaverini J, Leibfried D, Wineland DJ. Passive cooling of a micromechanical oscillator with a resonant electric circuit. Physical Review Letters. 2007 Sep 26;99(13).
• Brown KR. Energy protection arguments fail in the interaction picture. Physical Review A - Atomic, Molecular, and Optical Physics. 2007 Aug 23;76(2).
• Labaziewicz J, Richerme P, Brown KR, Chuang IL, Hayasaka K. Compact, filtered diode laser system for precision spectroscopy. Optics letters. 2007 Mar;32(5):572–4.
• Brown KR, Clark RJ, Labaziewicz J, Richerme P, Leibrandt DR, Chuang IL. Loading and characterization of a printed-circuit-board atomic ion trap. Physical Review A - Atomic, Molecular, and Optical Physics. 2007 Jan 30;75(1).
• Brown KR, Clark RJ, Chuang IL. Limitations of quantum simulation examined by simulating a pairing Hamiltonian using nuclear magnetic resonance. Physical review letters. 2006 Aug;97(5):050504.
• Pearson CE, Leibrandt DR, Bakr WS, Mallard WJ, Brown KR, Chuang IL. Experimental investigation of planar ion traps. Physical Review A - Atomic, Molecular, and Optical Physics. 2006 Mar 10;73(3).
• Moore KL, Purdy TP, Murch KW, Brown KR, Dani K, Gupta S, et al. Bose-Einstein condensation in a mm-scale Ioffe-Pritchard trap. Applied Physics B: Lasers and Optics. 2006 Mar 1;82(4):533–8.
• Brown KR, Harrow AW, Chuang IL. Erratum: Arbitrarily accurate composite pulse sequences (Physics Review A (2004) 70 (052318)). Physical Review A - Atomic, Molecular, and Optical Physics. 2005 Sep 1;72(3).
• Storcz MJ, Vala J, Brown KR, Kempe J, Wilhelm FK, Whaley KB. Full protection of superconducting qubit systems from coupling errors. Physical Review B - Condensed Matter and Materials Physics. 2005 Aug 1;72(6).
• Yu TM, Brown KR, Chuang IL. Bounds on the entanglement attainable from unitary transformed thermal states in liquid-state nuclear magnetic resonance. Physical Review A - Atomic, Molecular, and Optical Physics. 2005 Mar 1;71(3).
• Brown KR, Harrow AW, Chuang IL. Arbitrarily accurate composite pulse sequences. Physical Review A - Atomic, Molecular, and Optical Physics. 2004 Nov 1;70(5 A).
• Leslie S, Shenvi N, Brown KR, Stamper-Kurn DM, Whaley KB. Transmission spectrum of an optical cavity containing N atoms. Physical Review A - Atomic, Molecular, and Optical Physics. 2004 Jan 1;69(4).
• Brown KR, Dani KM, Stamper-Kurn DM, Whaley KB. Deterministic optical Fock-state generation. Physical Review A - Atomic, Molecular, and Optical Physics. 2003 Jan 1;67(4):16.
• Brown KR, Vala J, Whaley KB. Scalable ion trap quantum computation in decoherence-free subspaces with pairwise interactions only. Physical Review A - Atomic, Molecular, and Optical Physics. 2003 Jan 1;67(1):5.
• Shenvi N, Brown KR, Whaley KB. Effects of a random noisy oracle on search algorithm complexity. Physical Review A - Atomic, Molecular, and Optical Physics. 2003 Jan 1;68(5):11.
• Brown KR, Lidar DA, Whaley KB. Quantum computing with quantum dots on quantum linear supports. Physical Review A Atomic, Molecular, and Optical Physics. 2002 Jan 1;65(1):123071–1230719.
• Bacon D, Brown KR, Whaley KB. Coherence-preserving quantum bits. Physical review letters. 2001 Dec;87(24):247902.
• Sullivan MB, Brown K, Cramer CJ, Truhlar DG. Quantum Chemical Analysis of para-Substitution Effects on the Electronic Structure of Phenylnitrenium Ions in the Gas Phase and Aqueous Solution [J. Am. Chem. Soc. 1998, 120, 11778−11783]. Journal of the American Chemical Society. 1999 Dec 1;121(47):11026–11026.
• Sullivan MB, Brown K, Cramer CJ, Truhlar DG. Quantum Chemical Analysis ofpara-Substitution Effects on the Electronic Structure of Phenylnitrenium Ions in the Gas Phase and Aqueous Solution. Journal of the American Chemical Society. 1998 Nov 1;120(45):11778–83.
• BROWN KR, REYNALDO LP, HORROCKS WD, TRUE AE, NATAN MJ. ACTIVE-SITE STUDIES ON PARATHION HYDROLASE. In: ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY. 1994. p. 483-INOR.
• Brown KR, McPherson RG. Concentrations of copper, zinc and lead in the Sydney rock oyster, Saccostrea commercialis (Iredale and Roughley) from the Georges River, New South Wales. The Science of the total environment. 1992 Sep;126(1–2):27–33.
• Brown KR. Blowfly succession — a simple trap. Journal of Biological Education. 1991 Jun;25(2):89–90.
• SYN CK, LESUER DR, CADWELL KL, SHERBY OD, BROWN KR. LAMINATED METAL COMPOSITES OF ULTRAHIGH CARBON-STEEL BRASS AND AL/AL-SIC - PROCESSING AND PROPERTIES. In: DEVELOPMENTS IN CERAMIC AND METAL-MATRIX COMPOSITES. 1991. p. 311–22.
• BOND JT, GALINSKY E, LORD M, STAINES GL, BROWN KR. BEYOND THE PARENTAL LEAVE DEBATE - THE IMPACT OF LAWS IN 4 STATES. YOUNG CHILDREN. 1991;47(1):39–42.

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