1. Home
  2. Research
  3. Centers & Labs
  4. RIKEN Center for Emergent Matter Science

RIKEN Center for Emergent Matter Science Floating-Electron-Based Quantum Information RIKEN Hakubi Research Team

RIKEN Hakubi Team Leader: Erika Kawakami (Ph.D.)

Research Summary

Erika Kawakami (Ph.D.)

Our team is working on the application of electrons floating on liquid helium to quantum information. This physical system has a high potential for providing an ideal platform on which to realize a quantum computer, due to the fact that it is free of impurities and defects. We are also working on the technological development required for large-scale quantum computation.

Main Research Fields

  • Engineering

Related Research Fields

  • Interdisciplinary Science & Engineering
  • Mathematical & Physical Sciences
  • Applied physics
  • Nano/Micro science
  • Electrical and electronic engineering

Keywords

  • low-temperature physics
  • quantum computer
  • quantum bit
  • two-dimensional electron system
  • helium

Selected Publications

Papers with an asterisk(*) are based on research conducted outside of RIKEN.

  • 1. *E. Kawakami, A. Elarabi, D. Konstantinov.:
    "Image-charge detection of the Rydberg states of surface electrons on liquid helium"
    Physical Review Letters with Editors’ Suggestion, 123, 086801 (2019).
  • 2. *J.P.G. van Dijk, E. Kawakami, R.N. Schouten, M. Veldhorst, L.M.K. Vandersypen, M. Babaie, E. Charbon, and F. Sebastiano.:
    "The impact of classical control electronics on qubit fidelity"
    Physical Review Applied, 12, 044054 (2019).
  • 3. *T. F. Watson, S. G. J. Philips, E. Kawakami, D. R. Ward, P. Scarlino, M. Veldhorst, D. E. Savage, M. G. Lagally, Mark Friesen, S. N. Coppersmith, M. A. Eriksson & L. M. K. Vandersypen.:
    "A programmable two-qubit quantum processor in silicon"
    Nature 555, 633 (2018).
  • 4. *R. Ferdous, E. Kawakami, P. Scarlino, M. Novak, D. E. Savage, M. G. Lagally, Mark Friesen, S. N. Coppersmith, M. A. Eriksson, L.M. K. Vandersypen, and R. Rahman.:
    "Valley dependent anisotropic spin splitting in silicon quantum dots"
    Nature Quantum Information 4, 26 (2018).
  • 5. *P. Scarlino, E. Kawakami, T. Jullien, D. R. Ward, D. E. Savage, M. G. Lagally, Mark Friesen, S. N. Coppersmith, M. A. Eriksson and L. M. K. Vandersypen.:
    "Dressed photon-orbital states in a quantum dot: Inter-valley spin resonance"
    Physical Review B 95, 165429 (2017).
  • 6. *E. Kawakami, T. Jullien, P. Scarlino, D. R. Ward, D. E. Savage, M. G. Lagally, Viatcheslav Dobrovitski, Mark Friesen, S. N. Coppersmith, M. A. Eriksson, and L. M. K. Vandersypen.:
    "Gate fidelity and coherence of an electron spin in a Si/SiGe quantum dot with micromagnet"
    Proceedings of the National Academy of Sciences of the United States of America 113, 42, 11738 (2016).
  • 7. *P. Scarlino, E. Kawakami, D. R. Ward, D. E. Savage, M. G. Lagally, Mark Friesen, S. N. Coppersmith, M. A. Eriksson and L. M. K. Vandersypen.:
    "Second harmonic coherent driving of a spin qubit in Si/SiGe single quantum dot"
    Physical Review Letters 115, 106802 (2015).
  • 8. *E. Kawakami, P. Scarlino, D. R. Ward, F. R. Braakman, D. E. Savage, M. G. Lagally, Mark Friesen, S. N. Coppersmith, M. A. Eriksson, and L. M. K. Vandersypen.:
    "Electrical control of a long-lived spin qubit in a Si/SiGe quantum dot"
    Nature Nanotechnology 9, 666-670 (2014).
  • 9. *P. Scarlino, E. Kawakami, P. Stano, M. Shafiei, C. Reichl, W. Wegscheider, L. M. K. Vandersypen.:
    "Spin relaxation anisotropy in a GaAs quantum dot"
    Physical Review Letters with Editors’ Suggestion, 113, 256802 (2014).
  • 10. *E. Kawakami, P. Scarlino, L. R. Schreiber, J. R. Prance, D. E. Savage, M. G. Lagally, M. A. Eriksson, L. M. K. Vandersypen.:
    "Excitation of a Si/SiGe quantum dot using an on-chip microwave antenna"
    Applied Physics Letters 103, 132410 (2013).

Related Links

Lab Members

Principal investigator

Erika Kawakami
RIKEN Hakubi Team Leader

Contact Information

Email: erika.kawakami [at] riken.jp

Top