Max HOFHEINZ Photonique Electronique et Ingénierie Quantiques Laboratoire de Transport Electronique Quantique et Supraconductivité 04 38 78 67 31 04 38 78 50 98 Max.Hofheinz@cea.fr Office: C1-407b Lab: C1-413

Fonction

Research staff

Research topic

Photonic aspects of single Cooper pair tunneling

CV

Publications

• Bright Side of the Coulomb Blockade
  M. Hofheinz, F. Portier, Q. Baudouin, P. Joyez, D. Vion, P. Bertet, P. Roche, D. Esteve
  Phys. Rev. Lett. 106, 217005 (2011).
• Fast Tunable Coupler for Superconducting Qubits
  R. Bialczak, M. Ansmann, M. Hofheinz, M. Lenander, E. Lucero, M. Neeley, A. O'Connell, D. Sank, H. Wang, M. Weides, J. Wenner, T. Yamamoto, A. Cleland, J. Martinis
  Phys. Rev. Lett. 106, 060501 (2011).
• Quantum process tomography of a universal entangling gate implemented with Josephson phase qubits
  R. C. Bialczak, M. Ansmann, M. Hofheinz, E. Lucero, M. Neeley, A. D. O'Connell, D. Sank, H. Wang, J. Wenner, M. Steffen, A. N. Cleland, J. M. Martinis
  Nat Phys 6, 409-413 (2010).
• Quantum ground state and single-phonon control of a mechanical resonator
  A. D. O'Connell, M. Hofheinz, M. Ansmann, R. C. Bialczak, M. Lenander, E. Lucero, M. Neeley, D. Sank, H. Wang, M. Weides, J. Wenner, J. M. Martinis, A. N. Cleland
  Nature 464, 697-703 (2010).
• Background charges and quantum effects in quantum dots transport spectroscopy
  M. Pierre, M. Hofheinz, X. Jehl, M. Sanquer, G. Molas, M. Vinet, S. Deleonibus
  Eur. Phys. J. B 70, 475-481 (2009).
• Improving the coherence time of superconducting coplanar resonators
  H. Wang, M. Hofheinz, J. Wenner, M. Ansmann, R. C. Bialczak, M. Lenander, E. Lucero, M. Neeley, A. D. O'Connell, D. Sank, M. Weides, A. N. Cleland, J. M. Martinis
  Appl. Phys. Lett. 95, 233508 (2009).
• Decoherence Dynamics of Complex Photon States in a Superconducting Circuit
  H. Wang, M. Hofheinz, M. Ansmann, R. Bialczak, E. Lucero, M. Neeley, A. O'Connell, D. Sank, M. Weides, J. Wenner, A. Cleland, J. Martinis
  Phys. Rev. Lett. 103, 200404 (2009).
• Violation of Bell's inequality in Josephson phase qubits
  M. Ansmann, H. Wang, R. C. Bialczak, M. Hofheinz, E. Lucero, M. Neeley, A. D. O'Connell, D. Sank, M. Weides, J. Wenner, A. N. Cleland, J. M. Martinis
  Nature 461, 504-506 (2009).
• Emulation of a Quantum Spin with a Superconducting Phase Qudit
  M. Neeley, M. Ansmann, R. C. Bialczak, M. Hofheinz, E. Lucero, A. D. O'Connell, D. Sank, H. Wang, J. Wenner, A. N. Cleland, M. R. Geller, J. M. Martinis
  Science 325, 722-725 (2009).
• Synthesizing arbitrary quantum states in a superconducting resonator
  M. Hofheinz, H. Wang, M. Ansmann, R. C. Bialczak, E. Lucero, M. Neeley, A. D. O'Connell, D. Sank, J. Wenner, J. M. Martinis, A. N. Cleland
  Nature 459, 546-549 (2009).
• Measurement of the Decay of Fock States in a Superconducting Quantum Circuit
  H. Wang, M. Hofheinz, M. Ansmann, R. Bialczak, E. Lucero, M. Neeley, A. O'Connell, D. Sank, J. Wenner, A. Cleland, J. Martinis
  Phys. Rev. Lett. 101, 240401 (2008).
• Generation of Fock states in a superconducting quantum circuit
  M. Hofheinz, E. M. Weig, M. Ansmann, R. C. Bialczak, E. Lucero, M. Neeley, A. D. O'Connell, H. Wang, J. M. Martinis, A. N. Cleland
  Nature 454, 310-314 (2008).
• Reversal of the Weak Measurement of a Quantum State in a Superconducting Phase Qubit
  N. Katz, M. Neeley, M. Ansmann, R. Bialczak, M. Hofheinz, E. Lucero, A. O'Connell, H. Wang, A. Cleland, J. Martinis, A. Korotkov
  Phys. Rev. Lett. 101, 200401 (2008).
• Process tomography of quantum memory in a Josephson-phase qubit coupled to a two-level state
  M. Neeley, M. Ansmann, R. C. Bialczak, M. Hofheinz, N. Katz, E. Lucero, A. O'Connell, H. Wang, A. N. Cleland, J. M. Martinis
  Nat Phys 4, 523-526 (2008).
• Microwave dielectric loss at single photon energies and millikelvin temperatures
  A. D. O'Connell, M. Ansmann, R. C. Bialczak, M. Hofheinz, N. Katz, E. Lucero, C. McKenney, M. Neeley, H. Wang, E. M. Weig, A. N. Cleland, J. M. Martinis
  Appl. Phys. Lett. 92, 112903 (2008).
• High-Fidelity Gates in a Single Josephson Qubit
  E. Lucero, M. Hofheinz, M. Ansmann, R. Bialczak, N. Katz, M. Neeley, A. O'Connell, H. Wang, A. Cleland, J. Martinis
  Phys. Rev. Lett. 100, 247001 (2008).
• Transformed dissipation in superconducting quantum circuits
  M. Neeley, M. Ansmann, R. Bialczak, M. Hofheinz, N. Katz, E. Lucero, A. O'Connell, H. Wang, A. Cleland, J. Martinis
  Phys. Rev. B 77, 180508 (2008).
• Measurement of Capacitances in Multigate Transistors by Coulomb Blockade Spectroscopy
  M. Hofheinz, X. Jehl, M. Sanquer, R. Cerutti, A. Cros, P. Coronel, H. Brut, T. Skotnicki
  IEEE Trans. Nanotechnology 7, 74-78 (2008).
• 1/f Flux Noise in Josephson Phase Qubits
  R. Bialczak, R. McDermott, M. Ansmann, M. Hofheinz, N. Katz, E. Lucero, M. Neeley, A. O'Connell, H. Wang, A. Cleland, J. Martinis
  Phys. Rev. Lett. 99, 187006 (2007).
• Capacitance enhancement in Coulomb blockade tunnel barriers
  M. Hofheinz, X. Jehl, M. Sanquer, G. Molas, M. Vinet, S. Deleonibus
  Phys. Rev. B 75, 235301 (2007).
• Capacitance measurements in nanometric silicon devices using Coulomb blockade
  M. Hofheinz, X. Jehl, M. Sanquer, O. Cueto, G. Molas, M. Vinet, S. Deleonibus
  Solid-State Electronics 51, 560-564 (2007).
• Individual charge traps in silicon nanowires
  M. Hofheinz, X. Jehl, M. Sanquer, G. Molas, M. Vinet, S. Deleonibus
  Eur. Phys. J. B 54, 299-307 (2006).
• Simple and controlled single electron transistor based on doping modulation in silicon nanowires
  M. Hofheinz, X. Jehl, M. Sanquer, G. Molas, M. Vinet, S. Deleonibus
  Appl. Phys. Lett. 89, 143504 (2006).
• Peak spacing statistics in silicon single-electron transistors: Size and gate oxide thickness dependence
  X. Jehl, M. Hofheinz, M. Boehm, M. Sanquer, G. Molas, M. Vinet, S. Deleonibus
  Physica E: Low-dimensional Systems and Nanostructures 34, 620-623 (2006).
• Size scaling of the addition spectra in silicon quantum dots
  M. Boehm, M. Hofheinz, X. Jehl, M. Sanquer, M. Vinet, B. Previtali, D. Fraboulet, D. Mariolle, S. Deleonibus
  Phys. Rev. B 71, 033305 (2005).

Awards

• IUPAP Young Scientist Prize 2011: http://www.iupap.org/youngscientist2011.html
• Santa Barbara Innovator Award 2009
• Scholarship of Studienstiftung des Deutschen Volkes (Germany)
• Member of the German team at the International Physics Olympiad 1998

Research grants

• ANR ELODIS2 (member of coordinating lab, 488 k€, 2016)
• ANR WASI (coordinator of partner lab, 534 k€, 2014)
• ERC starting grant WiQOJo (indivitual grant, 1640 k€, 2011)
• Grenoble Nanoscience Foundation chair of excellence JoQOLaT (individual grant, 500 k€, 2011)