About

Having recently completed my PhD in physics at Yale University, I have taken a new position at Raytheon BBN Technologies in Cambridge, MA. My research continues on superconducting implementations of quantum bits (qubits). The hope is to one day be able to build a practical quantum computer. You can find more information on my old lab website.

My hobbies include choral music, skiiing, tennis, web development/design, video games, and photography.

Publications:

  • PhD thesis
  • Demonstration of quantum advantage in machine learning
    Diego Ristè, Marcus P. da Silva, Colm A. Ryan, Andrew W. Cross, Antonio D. Córcoles, John A. Smolin, Jay M. Gambetta, Jerry M. Chow & Blake R. Johnson. NPJ Quantum Information 3, 16 (2017).
    doi: 10.1038/s41534-017-0017-3 (quant-ph/1512.06069)
  • Demonstration of Robust Quantum Gate Tomography via Randomized Benchmarking
    Blake R. Johnson, Marcus P. da Silva, Colm A. Ryan, Shelby Kimmel, Jerry M. Chow, Thomas A. Ohki. New J. Phys. 17, 113019 (2015).
    doi: 10.1088/1367-2630/17/11/113019 (quant-ph/1505.06686)
  • Tomography via Correlation of Noisy Measurement Records
    Colm A. Ryan, Blake R. Johnson, Jay M. Gambetta, Jerry M. Chow, Marcus P. da Silva, Oliver E. Dial, Thomas A. Ohki. Phys. Rev. A 91, 022118 (2015)
    doi: 10.1103/PhysRevA.91.022118 (quant-ph/1310.6448)
  • Robust Extraction of Tomographic Information via Randomized Benchmarking
    Shelby Kimmel, Marcus P. da Silva, Colm A. Ryan, Blake R. Johnson, Thomas Ohki.
    Phys. Rev. X 4, 011050 (2014).
    doi: 10.1103/PhysRevX.4.011050 (quant-ph/1306.2348)
  • Implementing a strand of a scalable fault-tolerant quantum computing fabric
    Jerry M. Chow, Jay M. Gambetta, Easwar Magesan, Srikanth J. Srinivasan, Andrew W. Cross, David W. Abraham, Nicholas A. Masluk, B. R. Johnson, Colm A. Ryan, M. Steffen. Nature Communications 5, 4015 (2014). doi: 10.1038/ncomms5015 (quant-ph/1311.6330)
  • Self-consistent quantum process tomography
    Seth T. Merkel, Jay M. Gambetta, John A. Smolin, Stefano Poletto, Antonio D. Córcoles, Blake R. Johnson, Colm A. Ryan, and Matthias Steffen. Phys. Rev. A 87, 062119 (2013).
    doi: 10.1103/PhysRevA.87.062119 (quant-ph/1211.0322)
  • Characterization of addressability by simultaneous randomized benchmarking Jay M. Gambetta, A. D. Corcoles, S. T. Merkel, B. R. Johnson, John A. Smolin, Jerry M. Chow, Colm A. Ryan, Chad Rigetti, S. Poletto, Thomas A. Ohki, Mark B. Ketchen, M. Steffen. Phys. Rev. Lett. 109, 240504 (2012).
    doi: 10.1103/PhysRevLett.109.240504 (cond-mat/1204.6308)
  • Efficient measurement of quantum gate error by interleaved randomized benchmarking Easwar Magesan, Jay M. Gambetta, B. R. Johnson, Colm A. Ryan, Jerry M. Chow, Seth T. Merkel, Marcus P. da Silva, George A. Keefe, Mary B. Rothwell, Thomas A. Ohki, Mark B. Ketchen, M. Steffen. Phys. Rev. Lett. 109, 080505 (2012).
    doi: 10.1103/PhysRevLett.109.080505 (cond-mat/1203.4550)
  • Measurements of Quasiparticle Tunneling Dynamics in a Band-Gap-Engineered Transmon Qubit
    L. Sun, L. DiCarlo, M. D. Reed, G. Catelani, Lev S. Bishop, D. I. Schuster, B. R. Johnson, Ge A. Yang, L. Frunzio, L. Glazman, M. H. Devoret, and R. J. Schoelkopf. Phys. Rev. Lett 108, 230509 (2012).
    doi: 10.1103/PhysRevLett.108.230509 (cond-mat/1112.2621)
  • Coherence in a transmon qubit with epitaxial tunnel junctions
    Martin P. Weides, Jeffrey S. Kline, Michael R. Vissers, Martin O. Sandberg, David S. Wisbey, B. R. Johnson, Thomas A. Ohki, David P. Pappas. Appl. Phys. Lett 99, 262502 (2011).
    doi: 10.1063/1.3672000 (cond-mat/111.5083)
  • Observation of High Coherence in Josephson Junction Qubits Measured in a Three-Dimensional Circuit QED Architecture
    Hanhee Paik, D. I. Schuster, Lev S. Bishop, G. Kirchmair, G. Catelani, A. P. Sears, B. R. Johnson, M. J. Reagor, L. Frunzio, L. I. Glazman, S.M. Girvin, M. H. Devoret, R. J. Schoelkopf. Phys. Rev. Lett. 107, 240501 (December 2011).
    doi: 10.1103/PhysRevLett.107.240501 (cond-mat/1105.4652)
  • Simple All-Microwave Entangling Gate for Fixed-Frequency Superconducting Qubits
    Jerry M. Chow, A. D. Córcoles, Jay M. Gambetta, Chad Rigetti, B. R. Johnson, John A. Smolin, J. R. Rozen, George A. Keefe, Mary B. Rothwell, Mark B. Ketchen, and M. Steffen. Phys. Rev. Lett. 107, 080502 (August 2011).
    doi: 10.1103/PhysRevLett.107.080502 (cond-mat/1106.0553)
  • High-Fidelity Readout in Circuit Quantum Electrodynamics Using the Jaynes-Cummings Nonlinearity
    M. D. Reed, L. DiCarlo, B. R. Johnson, L. Sun, D. I. Schuster, L. Frunzio, and R. J. Schoelkopf. Phys. Rev. Lett. 105, 173601 (October 2010). doi: 10.1103/PhysRevLett.105.173601 (cond-mat/1004.4323)
  • Preparation and measurement of three-qubit entanglement in a superconducting circuit
    L. DiCarlo, M. D. Reed, L. Sun, B. R. Johnson, J. M. Chow, J. M. Gambetta, L. Frunzio, S. M. Girvin, M. H. Devoret and R. J. Schoelkopf. Nature 467, 574–578 (September 2010). doi:10.1038/nature09416 (cond-mat/1004.4324)
  • Quantum Non-demolition Detection of Single Microwave Photons in a Circuit
    B. R. Johnson, M. D. Reed, A. A. Houck, D. I. Schuster, Lev S Bishop, E. Ginossar, J. M. Gambetta, L. DiCarlo, L. Frunzio, S. M. Girvin, R. J. Schoelkopf. Nature Physics 6, 663-667 (June 2010). doi:10.1038/nphys1710 (cond-mat/1003.2734)
  • Fast Reset and Suppressing Spontaneous Emission of a Superconducting Qubit
    M. D. Reed, B. R. Johnson, A. A. Houck, L. DiCarlo, J. M. Chow, D. I. Schuster, L. Frunzio, R. J. Schoelkopf. Applied Physics Letters 96, 203110 (21 May 2010). (cond-mat/1003.0142)
  • Demonstration of two-qubit algorithms with a superconducting quantum processor
    L. DiCarlo, J. M. Chow, J. M. Gambetta, Lev S. Bishop, B. R. Johnson, D. I. Schuster, J. Majer, A. Blais, L. Frunzio, S. M. Girvin & R. J. Schoelkopf. Nature 460, 240 (9 July 2009). doi:10.1038/nature08121 (cond-mat/0903.2030)
  • Randomized benchmarking and process tomography for gate errors in a solid-state qubit
    J. M. Chow, J. M. Gambetta, L. Tornberg, Jens Koch, Lev S. Bishop, A. A. Houck, B. R. Johnson, L. Frunzio, S. M. Girvin, and R. J. Schoelkopf. Phys. Rev. Lett. 102, 090502 (2009). doi:10.1103/PhysRevLett.102.090502 (cond-mat/0811.4387)
  • Controlling the Spontaneous Emission of a Superconducting Transmon Qubit
    A. A. Houck, J. A. Schreier, B. R. Johnson, J. M. Chow, Jens Koch, J. M. Gambetta, D. I. Schuster, L. Frunzio, M. H. Devoret, S. M. Girvin, R. J. Schoelkopf. Phys. Rev. Lett. 101, 080502 (2008). doi:10.1103/PhysRevLett.101.080502 (cond-mat/0803.4490)
  • Suppressing Charge Noise Decoherence in Superconducting Charge Qubits
    J. A. Schreier, A. A. Houck, Jens Koch, D. I. Schuster, B. R. Johnson, J. M. Chow, J. M. Gambetta, J. Majer, L. Frunzio, M. H. Devoret, S. M. Girvin, R. J. Schoelkopf. Phys. Rev. B 77, 180502(R) (2008), doi:10.1103/PhysRevB.77.180502 (cond-mat/0712.3581)
  • Coupling superconducting qubits via a cavity bus
    J. Majer, J. M. Chow, J. M. Gambetta, Jens Koch, B. R. Johnson, J. A. Schreier, L. Frunzio, D. I. Schuster, A. A. Houck, A. Wallraff, A. Blais, M. H. Devoret, S. M. Girvin and R. J. Schoelkopf. Nature (London) 449, 443 (2007), doi:10.1038/nature06184 (cond-mat/0709.2135)
  • Generating single microwave photons in a circuit
    A. A. Houck, D. I. Schuster, J. M. Gambetta, J. A. Schreier, B. R. Johnson, J. M. Chow, L. Frunzio, J. Majer, M. H. Devoret, S. M. Girvin and R. J. Schoelkopf. Nature (London) 449, 328 (2007), doi:10.1038/nature06126 (cond-mat/0702648)
  • Resolving photon number states in a superconducting circuit.
    D. I. Schuster, A. A. Houck, J. A. Schreier, A. Wallraff, J. M. Gambetta, A. Blais, L. Frunzio, J. Majer, B. R. Johnson, M. H. Devoret, S. M. Girvin, and R. J. Schoelkopf. Nature (London) 445, 515 (2007), doi:10.1038/nature05461 (cond-mat/0608693)

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