QPL Publications

Journal article and preprints written or co-authored by QPL members are listed here in reverse chronological order, with QPL authors in bold.


  • R. Blume-Kohout, M. P. da Silva, E. NielsenT. ProctorK. Rudinger, M. N. Sarovar, and K. YoungA taxonomy of small Markovian errors. PRX Quantum 3, 020335 (May 2022).
  • T. ProctorS. SeritanE. NielsenK. RudingerK. YoungR. Blume-Kohout, M. Sarovar, Establishing trust in quantum computations. arXiv preprint:2204.07568 (April 2022).
  • A. R. Mills, C. R. Guinn, M. J. Gullans, A. J. Sigillito, M. M. Feldman, E. Nielsen, J. R. Petta, Two-qubit silicon quantum processor with operation fidelity exceeding 99%. Science Advances 8, abn5130 (April 2022).
  • M. T. Mądzik, S. Asaad, A. Youssry, B. Joecker, K. M. Rudinger, E. Nielsen, K. C. Young, T. J. Proctor, A. D. Baczewski, A. Laucht, V. Schmitt, F. E. Hudson, K. M. Itoh, A. M. Jakob, B. C. Johnson, D. N. Jamieson, A. S. Dzurak, C. Ferrie, R. Blume-Kohout, A. Morello, Precision tomography of a three-qubit electron-nuclear quantum processor in silicon. Nature 601, 348–353 (January 2022).
  • T. ProctorK. RudingerK. YoungE. Nielsen and R. Blume-KohoutMeasuring the Capabilities of Quantum Computers. Nature Physics 18, 75-79 (January, 2022).
  • K. Rudinger, G. Ribeill, L. Govia, M. Ware, E. NielsenK. Young, T. Ohki, R. Blume-KohoutT. ProctorCharacterizing mid-circuit measurements on a superconducting qubit using gate set tomography, Phys. Rev. Applied 17, 014014 (January 2022).


  • T. ProctorS. SeritanK. RudingerE. NielsenR. Blume-Kohout, and K. YoungScalable randomized benchmarking of quantum computers using mirror circuits. arXiv preprint:2112.09853 (December 2021).
  • K. Rudinger, C. W. Hogle, R. K. Naik, A. Hashim, D. Lobser, D. I. Santiago, M. D. GraceE. NielsenT. ProctorS. Seritan, S. M. Clark, R. Blume-Kohout, I. Siddiqi, and K. C. YoungExperimental Characterization of Crosstalk Errors with Simultaneous Gate Set Tomography. PRX Quantum 2, 040338 (November 2021).
  • T. Lubinski, S. Johri, P. Varosy, J. Coleman, L. Zhao, J. Necaise, C. H. Baldwin, K. Mayer, and T. ProctorApplication-Oriented Performance Benchmarks for Quantum Computing. arXiv preprint:2110.03137 (October 2021).
  • E. Nielsen, J. K. Gamble, K. Rudinger, T. Scholten, K. Young, R. Blume-KohoutGate set tomographyQuantum 5, 557 (October 2021).
  • E. NielsenK. RudingerT. ProctorK. Young, and R. Blume-KohoutEfficient flexible characterization of quantum processors with nested error models. New J. Phys. 23 093020 (September 2021).


  • R. Blume-KohoutK. RudingerE. NielsenT. Proctor, and K. YoungWildcard error: Quantifying unmodeled errors in quantum processors.  arXiv preprint:2012.12231 (December 2020).
  • O. Di Matteo, J. Gamble, C. Granade, K. Rudinger, N. Wiebe, Operational, gauge-free quantum tomography, Quantum 4, 364 (November 2020).
  • R. Blume-Kohout and K. YoungA volumetric framework for quantum computer benchmarks, Quantum 4, 362 (November 2020).
  • M. Sarovar, T. ProctorK. RudingerK. YoungE. Nielsen and R. Blume-KohoutDetecting crosstalk errors in quantum information processors. Quantum 4, 321 (October 2020).
  • T. Proctor, M. Revelle, E. NielsenK. Rudinger, D. Lobser, P. Maunz, R. Blume-KohoutK. YoungDetecting and tracking drift in quantum information processors, Nature Communications 11, 5396 (October 2020).
  • E. NielsenK. RudingerT. Proctor, A. Russo, K. Young and R. Blume-KohoutProbing quantum processor performance with pyGSTiQuantum Science & Technology 5, 044002 (July 2020).
  • A. Veitia, M. P. da Silva, R. Blume-Kohout, S. J. van Enk, Macroscopic instructions vs microscopic operationsPhysics Letters A 384 (6), 126131 (February 2020).
  • A. Polloreno and K. YoungRobustly decorrelating errors with mixed quantum gates.  arXiv preprint:2001.02779 (January 2020).


  • T. Scholten, Y.-K. Liu, K. Young, and R. Blume-KohoutClassifying single-qubit noise using machine learning. arXiv preprint:1908.11762 (August 2019).
  • T. Proctor, A. Carignan-Dugas, K. RudingerE. NielsenR. Blume-Kohout, and K. YoungDirect randomized benchmarking for multi-qubit devices. Phys. Rev. Lett. 123, 030503 (July 2019).
  • K. RudingerT. Proctor, D. Langharst, M. SarovarK. Young, and R. Blume-KohoutProbing context-dependent errors in quantum processors. Phys. Rev. X 9, 021045 (June 2019).


  • C. Ferrie and R. Blume-Kohout, Maximum Likelihood Quantum State Tomography is Inadmissible, arXiv preprint: 1808.01072 (2018).
  • T. L. Scholten and R. Blume-KohoutBehavior of the maximum likelihood in quantum state tomography, New J. Phys. 20, 023050 (2018).


  • T. ProctorK. RudingerK. YoungM. Sarovar, and R. Blume-KohoutWhat randomized benchmarking actually measures, Phys. Rev. Lett. 119, 130502 (2017).
  • K. Rudinger, S. Kimmel, D. Lobser, and P. Maunz, Experimental demonstration of a cheap and accurate phase estimation, Phys. Rev. Lett. 118, 190502 (2017).
  • R. Blume-KohoutJ. K. GambleE. NielsenK. Rudinger, J. Mizrahi, K. Fortier, and P. Maunz, Demonstration of qubit operations below a rigorous fault tolerance threshold with gate set tomography, Nat. Commun. 8, 14485 (2017).


  • C. Ferrie and R. Blume-Kohout, Bayes estimator for multinomial parameters and Bhattacharyya distances, arXiv preprint: 1612.07946 (2016).
  • J. Dehollain, J. Muhonen, R. Blume-KohoutK. RudingerJ. K. GambleE. Nielsen, A. Laucht, S. Simmons, R. Kalra, A. Dzurak, and A. Morello, Optimization of a solid-state electron spin qubit using gate set tomography, New J. Phys. 18, 103018 (2016).
  • C. Ferrie and R. Blume-KohoutMinimax quantum tomography: the ultimate bounds on accuracy, Phys. Rev. Lett. 116, 090407 (2016).


  • D. Kim, D. R. Ward, C. B. Simmons, J. K. GambleR. Blume-KohoutE. Nielsen, D. E. Savage, M. G. Lagally, M. Friesen, S. N. Coppersmith, M. A. Eriksson, Microwave-driven coherent operations of a semiconductor quantum dot charge qubit, Nature Nanotechology 10, 243 (2015).


  • L. A. Rozema, D. H. Mahler, R. Blume-Kohout, A. M. Steinberg, On the Optimal Choice of Spin-Squeezed States for Detecting and Characterizing a Quantum ProcessPhys. Rev. X 4, 041025 (2014).


  • R. Blume-KohoutJ. K. GambleE. Nielsen, J.  Mizrahi, J. D. Sterk, P. Maunz, Robust, self-consistent, closed-form tomography of quantum logic gates on a trapped ion qubitarXiv preprint: 1310.4492 (2013).
  • D.H. Mahler, L. A. Rozema, A. Darabi, C. Ferrie, R. Blume-Kohout, A. M. Steinberg, Adaptive quantum state tomography improves accuracy quadraticallyPhys. Rev. Lett. 111, 183601 (2013).
  • S. J. van Enk, R. Blume-KohoutWhen quantum tomography goes wrong: drift of quantum sources and other errorsNew J. Phys. 15, 025024 (2013).